Telescope Reviews: A 1" Shaft diameter Pillow Block Mount Build

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

A 1" Shaft diameter Pillow Block Mount Build
#5717188 - 03/06/13 08:10 PM Attachment (139 downloads)

I decided that it was time to come up with a new idea to replace the older CG-5 equatorial mount shown in one of my previous builds shown here carrying the 4.5". So I came up with the idea to build a pillow block model that would allow me to use four of my main instruments. It must accomodate the 4.5" f/10 A Jaegers Homebuilt Refractor,the 5" f/9 Yulin(Apogee) refractor, the 8-inch f/6 Hardin(GSO) and the 6.5" f/8 Galileo newt(under refurbishment).

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5717205 - 03/06/13 08:22 PM Attachment (107 downloads)

I had an old Meade EQ mount that had 1" diameter precision steel shafts . The Meade unit had a non operating clock drive and useless for what i wanted to do.

After reading some CN posts on pillow block bearing mounts, I decided to build one utilizing some parts from the Meade. I liked the precision shafts involved and began planning for this new unit. I began with the disassembly of the meade, and decided to make the Meade's decination axis my new mount's Right Ascension axis. The Hardin had been riding this mount.

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obin robinson
sage

Reged: 10/25/12

Loc: League City, TX

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5717296 - 03/06/13 09:14 PM

Cool. I'm subscribing to this to see how it goes.

obin

Post Extras:

BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5717388 - 03/06/13 10:10 PM Attachment (92 downloads)

I dissembled the Meade mount. Parts from top to bottom- RA Drive Cover, 2- 1" pillow block bearings,RA Circle hub, Cradle to join pedestal,Declination Axis ,Right Asension Axis Drive assembly, with clock drive attached.

Post Extras:

BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5717450 - 03/06/13 10:41 PM Attachment (86 downloads)

Another shot. Note how easily the declination shaft fits into the 1" inside diameter pillow blocks.Also shown is the drive assembly and parts, none of which will be used in this build.

Post Extras:

obin robinson
sage

Reged: 10/25/12

Loc: League City, TX

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5717460 - 03/06/13 10:46 PM

For what it is worth that is a Starfinder EQ you are disassembling. Before you toss out any old parts please let me know. I might be able to use them.

obin

Edited by obin robinson (03/06/13 10:47 PM)

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Chuck Hards
sage

Reged: 05/03/10

Loc: The Great Basin

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: obin robinson]
#5717486 - 03/06/13 10:56 PM

A Classic, old-school mount concept. I love it! Keep updating!

Looks like self-aligning pillow blocks, yes?

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: Chuck Hards]
#5719405 - 03/07/13 09:30 PM

Thanks guys. The next phase involved the removal of some light rust on the Right Ascension shaft. The pictures above were made before the rust was taken off the shaft.
With the four pillow blocks in hand I needed a shaft for the declination axis, and bought a 48-inch long x 1" diameter shaft from a firm called onlinemetalsupply for a price of only $13.77. My starting point to the correct length for this shaft was to work it to a shorter length depending upon what scope would be mounted up there.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5719497 - 03/07/13 10:12 PM Attachment (97 downloads)

I began to see how this mount would come togather, and I made a few rough sketches,nothing major.this would be the easiest and simplest of assemblies, that would be very cost efficient. The best way I chose to approach this would be to obtain 3 pieces of 1/2" thick x 6" #6061 Aluminum Flat Bar .
In the picture, from top left to bottom right are the following parts-
Declination axis bearing plate: holds the 2 pillow block bearings and the shaft itself.
Right Ascension axis bearing plate: holds RA axis and its pillow block bearings.
Mounting Cradle.
Next to the cradle is a little piece of specifically cut 3/4" thick x 3" x 3"x 3" aluminum #6061 wedge. How important is this? Without it I would not be able to connect the mount to the cradle and to the pedestal base, and I cut this with my band saw.
2 pieces of 3" 1 1/2" aluminum angle.
12-2" Stainless Steel Bolts, and matching nuts. Four bolts,nuts and 2 washers each of the 3 plates.
24- washers.
The nylon block would serve as a declination axis slo-motion. To be cut as needed.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5719545 - 03/07/13 10:33 PM Attachment (95 downloads)

A few days later I started the assembly of this mount.You may wonder why I chose #6061 Aluminum parts for this project- its because this is extremely strong yet light . The old declination shaft of the Meade is now the Right asension axis of the new pillow block mount.
In the forefront, you can see that the wedge is attached to the cradle and the 2 angle pieces are joined to the base of that wedge. Four holes, two in each angle and four in the RA axis plate will allow the wedge to be mounted to the base of the Right Ascension axis assembly.
The aluminum bar is only a piece that was removed from the declination plate.

Post Extras:

obin robinson
sage

Reged: 10/25/12

Loc: League City, TX

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5719923 - 03/08/13 07:17 AM

Looking good! Keep up the good work!

obin

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neo
Carpal Tunnel

Reged: 02/12/08

Loc: Iasi, Romania

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: obin robinson]
#5719976 - 03/08/13 08:00 AM

Looks great! Keep posting with lots of pics

.
It looks like the RA shaft could use a bit o trimming. Seems a bit long. But being steel, I know it's bit discouraging.
Do you have a drive for DEC shaft too?

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: neo]
#5720089 - 03/08/13 09:19 AM

The plan is to trim the axis lengths soon as the clock drive is attached and placed and the counterweights have been settled upon.. I certainly would want them shorter to lighten the weight of the mount.The Dec. axis at 48 inches will be shortened to 30", which seems to be the optimal length for the 8" which is the heaviest of the scopes that will be used on it and also the number of counterweights I have.

Post Extras:

Geo.
Carpal Tunnel

Reged: 10/01/08

Loc: Upstate NY

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5720165 - 03/08/13 09:56 AM

Leave room for some worm gear drives!

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bremms
scholastic sledgehammer

Reged: 08/31/12

Loc: SC

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: Geo.]
#5720352 - 03/08/13 11:42 AM

My pillow block 1" uses tapped base pillow blocks. It's very compact since the pillow blocks don't have the mounting flanges.

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mikey cee
Postmaster

Reged: 01/18/07

Loc: bellevue ne.

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: bremms]
#5720485 - 03/08/13 12:56 PM

Gary....Copy Cat!!

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: mikey cee]
#5721229 - 03/08/13 09:11 PM Attachment (65 downloads)

Yeah Mikey!

I always liked the design concept,and Bremms the pillow blocks do fit plush against the plates. One feature I incorporated into each plate were the slightly large bolt holes for the bearings. This allowed me to line the declination axis directly in front of the RA axis, critical for proper scope balance and to help protect the drive .
The Pipe Cap with the mounting wedge fits a 4" inside diameter pipe, so I searched and found a local supplier and purchased for $60.00 a section of 9 feet long 4" inside diameter x 1/4" thick section , and the two pedestals would be made from these. I needed to cut this pipe into two sections,and the company cut it into 5' and 4' lengths for easy transportation in my truck.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5721274 - 03/08/13 09:44 PM Attachment (47 downloads)

Even though the supplier cut these for me, I still had to prepare them for the proper size. For the refractor pedestal to be effective for me due to my height,I would need to look at the RA axis assembly without bending and also to train the refractors at something in the zenith without bending that much.I did not see how these pipes would be trimmed with a mere hacksaw, so I consulted with my Protege Mel Dawson of Riverview FL, and he suggested I buy an angle grinder to make the necessary cuts.I got ahold of one and bought some cutting discs. That got the job done after a lot of intense sparking. It's a great tool to have!!
Having two sets of three legs from a couple of Edmund pedestals it was a simple matter to mount them to each pipe, and I replaced those wingnuts with stainless steel nuts and bolts.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5722127 - 03/09/13 11:39 AM Attachment (43 downloads)

Here's pictures of each Pedestal, after the legs were mounted up. The unfinished refractor unit.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5722145 - 03/09/13 11:49 AM Attachment (38 downloads)

Reflector pedestal. With each put togather, it is now time to make sure that they are at the correct height for my requirements. each Pedestal will have its own legs,one set coming from the old VersaPed. In these views I just used one set for these images.

Edited by BarabinoSr (03/09/13 11:51 AM)

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5722173 - 03/09/13 12:05 PM Attachment (33 downloads)

I started with some of the modifications to the pedestals. In this image, I decided to work on the Reflector unit.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5722413 - 03/09/13 02:08 PM Attachment (31 downloads)

Using the angle grinder three slits cut equidistant all around were made on the top of each pedestal. This so that the scope connecting piece( for lack of a better name) can seat and be bolted into place. Here is a view of that part.This is also made of 6061 aluminum . The three screws fit into the slots on the top. A small bolt will be added to the pedestal bracket to help with the altitude adjustment and stability.

Edited by BarabinoSr (03/09/13 02:12 PM)

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5722503 - 03/09/13 03:39 PM Attachment (30 downloads)

Joining the mount support to the pedestal was a snap! But for esier transfering of the mount from pedestal to pedestal was made even easier by slotting the top.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5722522 - 03/09/13 03:50 PM Attachment (26 downloads)

Thanks to the work with my new angle grinder, I was able to slot the pedestal top for the mount assembly thus.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5722725 - 03/09/13 05:53 PM Attachment (27 downloads)

Another view.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5722788 - 03/09/13 06:34 PM Attachment (34 downloads)

First view of the mount on the reflector pedestal. Note that it has the 48" long declination shaft.

Edited by BarabinoSr (03/09/13 07:02 PM)

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Mirzam
Post Laureate

Reged: 04/01/08

Loc: Lovettsville, VA

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5722813 - 03/09/13 06:52 PM

How do you brake the shafts? Looks like there is some sort of device on the dec plate. What are you using to connect the scope/saddle to the dec shaft?

Looking good!

JimC

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dawsonian2000
Pooh-Bah

Reged: 07/26/06

Loc: Riverview, FL, USA

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5722852 - 03/09/13 07:18 PM

Hey Bam!

I look forward to seeing the updates you made to your EQ, which I am already aware of. I believe CN members will lover the changes. Especially the modifications to the braking system that work splendidly.

I will let you elaborate further.

Mel

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: Mirzam]
#5722956 - 03/09/13 08:34 PM Attachment (35 downloads)

Well ,it will be easy to build a braking system for the Declination axis as well as the RA axis, and that all will soon be explained as this project goes on. How will the telescope cradle be joined to the declination axis ? . Look back at the third photo in the thread. You can see a small thick ring with a 1" diameter hole in the center. Here is a close up of that ring. It fits the declination shaft perfectly, and has an allen head screw on its side so that it can be tightened down. I can lock it on the shaft by way of this allen screw. Using my drill press equipped with a 1/3" diameter metal-cutting bit, I bored 3 holes equidistant all around in this ring and in the plate to match .

Edited by BarabinoSr (03/09/13 08:36 PM)

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5722982 - 03/09/13 08:57 PM Attachment (33 downloads)

The build was delayed until the arrival of THIS !!!! A gift from my freind and brother Mel Dawson Vega Sky Center II.

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chuck52
super member

Reged: 12/03/09

Loc: Quartz Hill,California

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5723157 - 03/09/13 11:17 PM

Watching your progress on the mount is inspiring me to start my own pillow block type mount.Very nice!

Post Extras:

neo
Carpal Tunnel

Reged: 02/12/08

Loc: Iasi, Romania

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: chuck52]
#5723361 - 03/10/13 04:36 AM

Ah yes, it's comming along nicely

.
You'll have to trim that DEC shaft, looks a bit to long, and with all the counter weights in place it will flex quite a bit. You'll probably not detect it visually but thru eyepiece could be noticeable.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: neo]
#5723437 - 03/10/13 06:56 AM Attachment (33 downloads)

Yep that is the plan neo. As a matter of fact,I will replace that shaft entirely with a new precision 30" x 1" diameter one and two new pillow blocks later in the build.
Do you guys recognize this?

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5723450 - 03/10/13 07:09 AM Attachment (24 downloads)

This is part of which was in the box from Mr Ed Byers- a 9-inch diameter clock drive system ,machined to fit a 1" diameter shaft. Next ,the worm and motor assembly.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5723465 - 03/10/13 07:34 AM Attachment (33 downloads)

Busness side 9-inch Drive Gear. Note the six hexagonal spring loaded clutch adjustment allen screws. For this mount to work properly this clutch must provide slow motion in RA movement. The objective is to achieve what Mel Dawson and I like to term " Stop Right There" capability. This means that with all things considered, wherever you point the scope (doesnt matter which scope is up there) that the scope stays on what it is pointed toward. This drive is a marvel in precision mechanical construction and it is one of many of the great works of Mr. Byers.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5723471 - 03/10/13 07:41 AM Attachment (28 downloads)

This edgewise view shows the meticulous detail in the gear teeth, and the gear to worm match is perfect.

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Sean Cunneen
Let Me Think

Reged: 08/01/07

Loc: Blue Island Illinois

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5723543 - 03/10/13 09:17 AM Attachment (21 downloads)

Nice! Welcome to the club!

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5723564 - 03/10/13 09:40 AM Attachment (23 downloads)

Here is a view of the drive gear and teeth .The last image did not post. Hopefully this one will post this time .

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5723570 - 03/10/13 09:44 AM

Hey Sean ! That is an awesome millow block mount. What size scope is riding on that ?!!!

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mikey cee
Postmaster

Reged: 01/18/07

Loc: bellevue ne.

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5723578 - 03/10/13 09:52 AM

It's almost sad that most don't see the simplicity, beauty, reliabilty and ease of construction in a pillow block mounting. I find that an industrial "look" is really not all that bad. After all ever see a professional observatory mount that looked like it was purchased out of a catalog?

Mike

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mikey cee
Postmaster

Reged: 01/18/07

Loc: bellevue ne.

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: mikey cee]
#5723759 - 03/10/13 12:01 PM Attachment (43 downloads)

I needed a brake on my RA only because I have a hand brake for my DEC near the eyepiece where I can adjust the needed drag. I merely used a modified exhaust pipe clamp that you can line the inner surface with wood, felt or any combination thereof.

Mike

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mikey cee
Postmaster

Reged: 01/18/07

Loc: bellevue ne.

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: mikey cee]
#5723782 - 03/10/13 12:09 PM Attachment (42 downloads)

Here is a closer pic. Sorry for the soft focus which doesn't show the threaded rods. I found if I did't have a brake that the drive clutch could never handle the torque. Now when you move the scope back and forth in RA at 515x there is an "almost" an immediate response. A brake really does work and is definitely needed.

Mike

Post Extras:

neo
Carpal Tunnel

Reged: 02/12/08

Loc: Iasi, Romania

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5723913 - 03/10/13 01:27 PM

Quote:

Yep that is the plan neo. As a matter of fact,I will replace that shaft entirely with a new precision 30" x 1" diameter one and two new pillow blocks later in the build.
Do you guys recognize this?

Drooling already

Oh man, just don't stop from posting

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Mirzam
Post Laureate

Reged: 04/01/08

Loc: Lovettsville, VA

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: mikey cee]
#5724191 - 03/10/13 04:17 PM

The exhaust clamp is a great idea! You probably needed one about the correct size for a Mack truck.

JimC

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: Mirzam]
#5724481 - 03/10/13 06:49 PM

Mikey you're correct if the instrument is as heavy as yours and the mount has a much heavier motor and drive system (BTW love that system youve got there). I see the slow motion control on your mount, and it does have a half sleeve positioned atop the RA axis, and this is the style I have planned for the dec. axis to provide slow motion .Later in the future I plan to add a declination drive to the mount. This RA Axis Byers Drive however has an excellent slip clutch and I see no need to add a slo mo to the RA axis of a mount this size. If the scopes used with it are balanced it should be fine as is.

Edited by BarabinoSr (03/10/13 06:53 PM)

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5724494 - 03/10/13 06:55 PM Attachment (35 downloads)

The rear clutch of the Byers unit.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5724579 - 03/10/13 07:33 PM Attachment (37 downloads)

Now comes the question- How will the drive be attached to the Right Ascension axis? This was done when I obtained two pieces of-yep,you guessed it- #6061 Aluminum plate 3/4" thick x 4" wide by 4" long, and also a 1 1/2" angle aluminum strip long as the width of the RA Axis Housing Plate.This was sent to me by my friend Mel. In this image you can see that the 9-inch gear has been mounted along with the plate that will hold the drive motor . This drive gear slid onto the RA shaft easily and is a great fit. No wobbliness at all! On the gear collar Mr Byers has mounted an allen screw to lock this gear to the shaft.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5724624 - 03/10/13 07:54 PM Attachment (28 downloads)

The under belly of the rear R.A Axis. You can see the angle bracket that is mounted on the rear of the RA axis.Two screws hold the bearings and angle to the plate assembly and two hold the motor support plate to the angle bracket. To make this efficient, I had to reduce the 3/4" thick plate to 4" in length, but in this image you can see that it is too long! In the lower left is the rear bolts of the cradle support brackets. (BTW it is not crooked;just looks that way!)

Edited by BarabinoSr (03/10/13 07:55 PM)

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5724666 - 03/10/13 08:09 PM Attachment (24 downloads)

This is the Right Ascension Axis assembly showing the drive plate and worm mount with assembly attached in place.This on the reflector pedestal.

Post Extras:

BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5724693 - 03/10/13 08:22 PM Attachment (33 downloads)

Full Pedestal view with Declination axis attached. The loop screw was removed from it since this image was made.

Post Extras:

BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5724709 - 03/10/13 08:31 PM Attachment (31 downloads)

Full Refractor pedestal view.

Post Extras:

BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5724739 - 03/10/13 08:51 PM Attachment (26 downloads)

I had a couple of small nylon plastic pieces and utilizing the small aluminum strip left over from the downsizing of the Right Ascension axis, I built a declination slo motion control to allow easy and smooth movement . It was made from 2 pieces cut exacly alike that was designed to fit half the way over the shaft itself. Two 5-inch bolts on either side of the Dec. shaft itself,each long enough to go through the plate and locked into place with nuts and washers gives the required motions. You can also see the underside of the RA Axis Assembly. The 4.5" Jaegers is the scope in the cradle.

Edited by BarabinoSr (03/10/13 08:53 PM)

Post Extras:

BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5724761 - 03/10/13 09:08 PM Attachment (30 downloads)

Same mount on the reflector Pedestal carrying the 8 f/6 Hardin.This image shows the new 30" precision shaft and bearings I recently added . Testing will begin soon and the clock drive will soon be wired to go. Stay tuned!

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mikey cee
Postmaster

Reged: 01/18/07

Loc: bellevue ne.

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5724796 - 03/10/13 09:31 PM

See how all this is going to look right uptown? What's nice about pillow block mounts are the real basic beef parts are simple and quick to put together. Plus they have numerous places where you can add "stuff" without dealing with curved surfaces to tap into etc. Then when you coat them with a nice crinkle finish they do indeed look quite "industrial" and operate like it too! Yeah they aren't meant to be portable grab 'n goes they are for semi and permanent setups. It'll look first class Gary. Guess what Gary? Something tells me you aren't going to stop at one unit or 1" for that matter. I see more in your future.

Mike

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: mikey cee]
#5724872 - 03/10/13 10:46 PM

Mikey, you never know what what may happen down the road! This unit and its parts are far from completion however. I still have to construct a couple of three-wheeled tridollys for these pedestals to sit on so that I can roll the scope out to use, in addition to cleaning, priming and painting the main components. The amazing part about this project is the cost. The four pillow blocks cost about $40.00 (off of ebay) the pedestal pipe cost $60 plus tax and I bought it locally, and the three aluminum plates that comprise the axis assemblies and the cradle cost about $50.00, a very inexpensive way to build a high quality pillow block GEM. In fact, ebay was the source for just about everything involving this build.

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zjc26138
Loved By All

Reged: 02/24/05

Loc: Mingo Junction, Ohio

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5725005 - 03/11/13 12:25 AM

Awesome build Gary!

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dawsonian2000
Pooh-Bah

Reged: 07/26/06

Loc: Riverview, FL, USA

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5725469 - 03/11/13 09:53 AM

Okay G

, everything is looking awesome.

But now let's get together so we can get this bad boy wired and powered up!

Mel

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neo
Carpal Tunnel

Reged: 02/12/08

Loc: Iasi, Romania

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: dawsonian2000]
#5726345 - 03/11/13 04:59 PM

Oh man I really like what I see, I really do!

I'm very qurious how one of these well built pillow block mounts would stand against one of those comercial monsters in terms of precision for imaging

? Of course with a drive like this Byers.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: neo]
#5726973 - 03/11/13 10:01 PM

Soon I will be removing part of the Right Ascension Axis utilizing the angle grinder. The plan is to take off enough of the overhang to leave 1 inch behind the Byers,and no change will be made to the Declination axis.

This mount can be made to even better tolerances than this and has great potential for very good precision astronomical applications.

Edited by BarabinoSr (03/11/13 10:03 PM)

Post Extras:

mikey cee
Postmaster

Reged: 01/18/07

Loc: bellevue ne.

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5727020 - 03/11/13 10:27 PM

Gary remember to leave a little more than you think you need. Because you can'r add it back on at least with out a splice!

Mike

Post Extras:

BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: mikey cee]
#5727753 - 03/12/13 09:53 AM

I'll keep that in mind, Mikey. I plan to take advantage of this good weather to put this mount through its motions. BTW Had a great time last evening with Pontchartrain Astronomy Society members Jack Huerkamp and Brian Lecompte observing Comet Panstarrs !!! Thanks Guys !

Post Extras:

mikey cee
Postmaster

Reged: 01/18/07

Loc: bellevue ne.

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5727937 - 03/12/13 11:36 AM

Gary have you ever felt such a smooth feel on any other mounting?? A person can't get a better operating mount like these. Plus the cost is probably 1/10 the total invested in a boughten one!

Mike

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: mikey cee]
#5728752 - 03/12/13 06:29 PM

Mikey, the feel is smooth with no herky-jerky movements. I can move the scope into almost any position without difficulty.People may be very surprised at the cost to build one of these - not bad at all!! My buddy Mel Dawson will be starting on one soon after he completes his 6" f/10 GJD refractor. I will be heading out again with the astronomy club guys for more comet viewing, but upon return I plan to set up the 8 inch scope for more mount testing. Looking like another spectacular evening is shaping up here. Gary

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neo
Carpal Tunnel

Reged: 02/12/08

Loc: Iasi, Romania

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5729679 - 03/13/13 04:43 AM

Beautifully simple and straightforward mount you got there Gary

! I really like it! What you'll goona use to drive the DEC shaft? Are you plan on any means of adjusting in Alt/Az for polar aligning?

Post Extras:

Dave O
super member

Reged: 12/21/11

Loc: Sri Lanka

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: mikey cee]
#5729904 - 03/13/13 09:11 AM

Quote:

See how all this is going to look right uptown? What's nice about pillow block mounts are the real basic beef parts are simple and quick to put together. Plus they have numerous places where you can add "stuff" without dealing with curved surfaces to tap into etc. Then when you coat them with a nice crinkle finish they do indeed look quite "industrial" and operate like it too! Yeah they aren't meant to be portable grab 'n goes they are for semi and permanent setups. It'll look first class Gary. Guess what Gary? Something tells me you aren't going to stop at one unit or 1" for that matter. I see more in your future. Mike

I am not familiar with these bearings; but am curious as to how one handles the axial thrust loads?

A pretty interesting thread, learning lots. Thanks for sharing. Dave O

Post Extras:

BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: Dave O]
#5730130 - 03/13/13 11:32 AM

Hi Dave! Thanks for your interest!
How much load bearing put on this unit depends entirely on the weight of the scope that will be used upon it. This was built to handle an 8" f/6 Newtonian, plus three others all lighter than the first one. These pillow blocks are reasonably priced, light industrial strength quality. I believe that this unit can carry up to a short 10" newt with the proper counter weights attached well. It is very tight no loose parts and well balanced.Another thing; the 1-inch shaft can accept barbell weights with a 1" center hole. If you're considering one of these, I recommend using PRECISION steel shafts for RA and Dec. with no shorter than 12" length for the RA axis and no longer than 30" for the declination axis. My RA axis is too long and will be shortened considerably to 1.5" beyond the clock drive. You can have fun building one like this, and as I said before, it not that expensive. Gary

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: neo]
#5733210 - 03/14/13 11:04 PM

Hey Neo ! To address the question about the declination drive, that will be added later .I originally considered using an Opti-craft Machine model but in view of the recent activities involving them I will hold off on that for now. The mount's altitude is controlled by two screws on the pipecap atop the pedestal base,on the pipecap's left side facing the mount from the rear. The larger one has a hexhead female opening on top of it and the other is a regular 1" bolt and both of these thread into the pipecap. It is a simple matter to lower or raise the altitude of the head by loosening or tightening these. I will add altitude gradations to this mount after the painting and priming is done.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5766809 - 03/30/13 12:42 PM Attachment (32 downloads)

I've been out awhile attending to various matters and its time to update the latest progress with this build. I set up the mount in reflector mode for a test run last evening, without the drive connected to see how efficient it is and trained it on a few celestial objects. I'm happy to report that this unit performed better than expected, a 100% improvement over the cg-5 I had before. I did some minor tweaking of the Dec. slo-mo and got the scope balanced on all sides so that the it stayed in position no matter where the scope was pointed. Great steady braking using the slo-mo on the declination axis, and I spent nearly an hour under the stars with the system.
What's next ? The refractor mode tests using the 4.5" f/10 Jaegers and 5-inch f/9 Apogee scopes to be conducted to night weather permitting. And the connection of the RA Byers Drive as well in a few days . Presently I'm awaiting the arrival of a small aluminum box , and also got a power cord for the drive converting one I already had from an old pc. This box will be screwed to the underside of the RA axis plate to help protect the drive's electrical connections from exposure to excessive moisture so common to this area .So the work on the build continues! Some views of the system as set up last night with the scope pointed at Jupiter.
Gary(G

)

Edited by BarabinoSr (03/30/13 12:44 PM)

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5766813 - 03/30/13 12:45 PM Attachment (36 downloads)

Scope aimed at M45(1432) Pleiades.

Edited by BarabinoSr (03/30/13 12:49 PM)

Post Extras:

BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5824061 - 04/26/13 10:41 AM

It's been a while since my last report on this build and all kinds of things have happened in the interim that has kept me from getting back on track here. I still need to complete the refractor tests and hook up the drive system . The plan is to take one step at a time until I finish. I'm off from work this weekend and will get the set up done for refractor mode. Clear Skies,Gary

Post Extras:

mikey cee
Postmaster

Reged: 01/18/07

Loc: bellevue ne.

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5824200 - 04/26/13 11:40 AM

Gary that is a very uptown setup you have there. Like you said pillow block mountings are cheap for what you get and some people not in the know would be very surprized I'm quite sure. With my mounting you probably could easily out do a commercial mount costing $10,000+. Sure no goto but heck I'm old school anyway and don't want goto. A mount like mine would probably cost $2,500 bucks to build it yourself. My PB's cost $90 each back 30 years ago but new ones today run about $400-$500 each. Even tho' $2500 is a lot of doughit's still way cheaper than a likewise commercial mount. I like that setup of your's with the large newt because it has that "it means business" look to it. After all large professional observatories all have that utilitarian industrial look....do they not?

Mike

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: mikey cee]
#5844494 - 05/06/13 09:43 PM Attachment (9 downloads)

Thanks, Mike! I have been busy lately but I finally got around to getting some work in on the Reflector base pipe and toes. I took the toes off and dropped the base pipe on my workbench and made some preparations to begin sanding it down before priming and got a view of it before the work began.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5844514 - 05/06/13 10:00 PM Attachment (7 downloads)

Sanding of the short base pipe completed. I was able to remove the dust left over from the process. It had a light coat of paint to keep it from rusting and this came off rather easily.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5844525 - 05/06/13 10:06 PM Attachment (9 downloads)

I decided to go with a is supposed to be a very good primer for my pieces, and also picked up the first cans of spray paint for use when the primer is fully dried.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5844534 - 05/06/13 10:08 PM Attachment (6 downloads)

Next I sanded the toes as well.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5844547 - 05/06/13 10:16 PM Attachment (9 downloads)

I removed as much of the old material off the toes as possible, including those spots after the last image was taken. Base pipe and toes first layer of primer added .Being as humid as it is here, I did'nt want the bare metals to rust.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5844582 - 05/06/13 10:33 PM Attachment (8 downloads)

I also decided to start on the Refractor Base pipe too. It was also laid down onto the workbench in preparation for sanding down.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5844597 - 05/06/13 10:38 PM Attachment (11 downloads)

Got this piece sanded down,so the next step is to take care of the toes for this base too.I'll need to get an extra can of the primer,so I can have enough to double coat both bases and their toes.

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dawsonian2000
Pooh-Bah

Reged: 07/26/06

Loc: Riverview, FL, USA

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5846189 - 05/07/13 05:44 PM

Hey G

,

You did a great job of the stripping the paint off your pedestal posts! They definitely look quite ready for priming. Just get them primed quick. You already know how bad that humidity is there.

I look forward to your next step.

Mel

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: dawsonian2000]
#5846784 - 05/07/13 10:31 PM

Thanks Mel. I will be heading to the hardware store to pick up another can of primer tomorrow. The plan is to have these parts primed for painting before the rainy weekend. Gary

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5848507 - 05/08/13 07:18 PM Attachment (14 downloads)

I just found out that I had a little more than half a can of primer left, and that allowed me to prime the refractor Pedestal and its toes. After allowing a two hour dry time for the primer, I went to the first step in the color scheme. The reflector base pedestal and a set of toes were spray-painted teal blue.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5848511 - 05/08/13 07:20 PM Attachment (15 downloads)

Refractor Pedestal.

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5848517 - 05/08/13 07:22 PM

Toes for the Reflector Pedestal.

Edited by BarabinoSr (05/08/13 07:24 PM)

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dawsonian2000
Pooh-Bah

Reged: 07/26/06

Loc: Riverview, FL, USA

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5848525 - 05/08/13 07:26 PM

The paint job on both pedestals look great, Gary! Look out for those phantom strong breezes, which could allow lord klutz to do what he does best.

Mel

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: dawsonian2000]
#5848540 - 05/08/13 07:36 PM Attachment (18 downloads)

Mel, I just completed the painting of the other set of toes in black. I plan to let all parts dry and outgas over the next couple of days. In the interim, I will soon begin dismantling the pillow block mount so that its parts can be sanded primed and painted. Toes in Black : BTW the blue showing on the tips of these toes are reflections from the nearby blue reflector pedestal and are not part of the color of those toes !!

Edited by BarabinoSr (05/08/13 07:40 PM)

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5861775 - 05/15/13 09:53 AM Attachment (20 downloads)

Back on the build again. I took this view of the mount on my workbench. I will soon begin to dismantle it so that the various parts can be painted. I will be making a few modifications to this unit along the way, including taking an inch off both sides of the cradle plate. When I'm done with the disassembly, I'll post some more pictures. G

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dawsonian2000
Pooh-Bah

Reged: 07/26/06

Loc: Riverview, FL, USA

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: BarabinoSr]
#5863420 - 05/15/13 10:57 PM

Hi Bam!

I can not wait to see the end results of you efforts with this build!

Mel

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BarabinoSr
Pooh-Bah

Reged: 11/17/05

Loc: Slidell La

Re: A 1" Shaft diameter Pillow Block Mount Build new

[Re: dawsonian2000]
#5868622 - 05/18/13 01:35 AM Attachment (3 downloads)

I got around to disassembling the pillow block mount so that the parts may be primed and painted. The only parts that will not see painting and priming are the Byers Drive, RA and Declination shafts.

Edited by BarabinoSr (05/18/13 01:40 AM)

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