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What did you work on today?

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#1 Sean Cunneen

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Posted 18 February 2015 - 08:01 PM

I stole the idea for this thread from the Classics forum...  They have a similar one tat has been going for a month. Please post if you did anything ATM.  Did you find a part? Work on something tricky? Use a new technique?  Here is a spot to share your idea when a starting a fresh thread would be too much work.


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#2 Sean Cunneen

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Posted 18 February 2015 - 08:04 PM

I'll start!  Today I combed Ebay for star nuts, thumb screws and found some great industrial lazy susan bearings which might make for a good start on some rotating rings See here:

 

http://www.ebay.com/...=STRK:MEBIDX:IT



#3 abberation

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Posted 18 February 2015 - 08:25 PM

Yesterday was better, I found a bag of 10 miniature ball bearings for $3.00 that I can use for Crayford focusers, and I measured some Schott glass blanks I have.


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#4 Alex Parker

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Posted 18 February 2015 - 08:34 PM

I did a little work on drawings for a 10" ultralight truss-style rich-field Newtonian.  Hope I someday find time to start building it...


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#5 Pinbout

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Posted 18 February 2015 - 08:42 PM

Printed a holographic plate that kingjames posted a thread about a couple  days ago to test a 8" f4.475 -1conic.



#6 starman345

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Posted 18 February 2015 - 08:49 PM

Today I cut a piece of plywood to size and laid out a mirror cell triangle on it , tomorrow if all goes well, I'll try cutting it out.



#7 Dick Jacobson

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Posted 19 February 2015 - 03:17 PM

Last night my glued 10" mirror finally came un-glued after 20 years so today I bought some silicone glue and am waiting for it to set.

#8 RossSackett

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Posted 20 February 2015 - 08:10 AM

Putting the finishing touches on my meteorite containment and isolation vessel.

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#9 Pierre Lemay

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Posted 20 February 2015 - 08:33 AM

Putting the finishing touches on my meteorite containment and isolation vessel.

Ross, and bilingual as well: I'm impressed - Je suis impressionné!


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#10 KarlL

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Posted 20 February 2015 - 12:41 PM

Continue to drill holes & hunt for hardware to complete my $23 EAA camera (check the EAA forum for the buzz).



#11 han7720

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Posted 20 February 2015 - 12:44 PM

I was grinding a small mirror blanks. (3~5 inch)
For miniature replica cassegrain telescopes.(  :lol:  pretty fun )

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Edited by han7720, 20 February 2015 - 12:46 PM.

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#12 jtsenghas

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Posted 20 February 2015 - 02:07 PM

Today I did a bit of CAD work designing my Ultralight 12.5" F/4.3 dob. I'm getting really happy with how the analysis of load and deflection is coming out! This will be an Ultralight, but it WILL manage the close tolerances required for collimation of a faster dob with Parracorr .

 

It will be awhile before I build it.  I'm still designing at least two projects ahead of my builds--which are seriously getting slowed down by -5 degree F weather!


Edited by jtsenghas, 20 February 2015 - 02:07 PM.

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#13 sickfish

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Posted 20 February 2015 - 02:20 PM

Mount for 20x80 Binoculars or small refractor.

Like a TV but add slow mo.

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#14 Steve OK

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Posted 20 February 2015 - 03:14 PM

I'm rebuilding my old 10" solid tube Dob into a more easily transported truss type.  Here's the mirror cell, ready for priming and painting.  This took me part of three days to get to this point.

 

10-in-cell-B-CN.jpg

 

Steve


Edited by Steve OK, 20 February 2015 - 03:15 PM.

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#15 iwannabswiss

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Posted 21 February 2015 - 12:18 AM

With the onset of super cold weather, snow and ice, I took the time to complete my hypertune while I wait for my belt drive conversion kit.  Next up while waiting is to disassemble and regrease the motors, then finish hacking up my Moonlite to finish my focuser build.



#16 brave_ulysses

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Posted 21 February 2015 - 11:55 AM

some detective work on the hc <-> mount comms for hdx110



#17 Alex Parker

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Posted 21 February 2015 - 02:51 PM

Three hours of testing hypotheses about why the collimation shifts on my dob as I move it away from zenith.  Found a lot of things are AREN'T the cause...


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#18 pbunn

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Posted 21 February 2015 - 03:47 PM

Drilled and tapped some holes on my camera bar to allow me to mount a Rigel Sight next to the optical finder. The bar has a DSLP mount, an optical  8 x 50 mm finder, a dovetail holder for my ST80 and now the sight.

 

Did some more research on the MyT and bought an adapter to mount either a MyT or an AP Mach 1 to my Losmandy tripods.

 

Too cloudy to do much else.

 

Pat


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#19 nighty

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Posted 21 February 2015 - 06:13 PM

Turned a lens cell on the new lathe. It put a big smile on my face.

 

  And I worked on the bluetooth adapter to allow skysafari to communicate with the  Minitower.

 

Lastly set up a new (upgraded) computer to use with the 3D printer.


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#20 Sean Cunneen

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Posted 21 February 2015 - 06:33 PM

I bought some vintage wood cases and spent the morning clearing out the interiors. Tonight I'll sand them and get them ready for fresh stain and some poly!


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#21 brave_ulysses

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Posted 21 February 2015 - 08:47 PM

pics or it didn't happen!

 

good thread, mr cunneen

 

 

Turned a lens cell on the new lathe. It put a big smile on my face.

 

 


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#22 hipine

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Posted 21 February 2015 - 09:08 PM

Trying to figure out correct element separation for a 40in f8 Telestigmat.

 

You'll see another thread asking for Help!

 

-Dave G. (noob)

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#23 John Carruthers

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Posted 22 February 2015 - 03:29 AM

Trying to figure out correct element separation for a 40in f8 Telestigmat.

 

You'll see another thread asking for Help!

 

-Dave G. (noob)

and this years award for 'best use of tape' goes to......

:lol:


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#24 hipine

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Posted 22 February 2015 - 09:18 AM

and this years award for 'best use of tape' goes to......

:lol:

 

 

An award on my first post?  What an honor!  This must be in the "no such thing as bad press" category.  :grin:

 

I know John, it's cruder than crude.  You're not even seeing the pile of cardboard strips I've been through, and I removed the taped-on meter stick I was using to rough gauge element spacing and eyepiece distance.  Thanks for the reply.  Very friendly people here.

All the best,

-Dave G.



#25 RossSackett

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Posted 22 February 2015 - 10:04 AM

Follow up with the stenciling and lights installed, with meteorites.

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