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Equipment Discussions >> ATM, Optics and DIY Forum

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magic612
Post Laureate
*****

Reged: 09/30/08

Loc: S. of Chicago's light dome
Re: O.W.L. 6" f/5.875 mirror. new [Re: Mark Harry]
      #5491421 - 10/27/12 10:08 AM

Mike, all looks nice. I just got my 6" f/10.9 mirror back from OWL, refigured and coated with semi-enhanced as well. I'm in the process of putting together a temporary tube so I can test it. Eventually I'll build an aluminum tube for it.

I like your mirror's focal length. I have a 6" f/5 that is my "main" telescope, and sometimes I wish it was just a bit longer in the focal length department, around that f/6-ish that yours is.


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ngc2289
Post Laureate
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Reged: 04/13/05

Loc: Corpus Christi, TX.
Re: O.W.L. 6" f/5.875 mirror. new [Re: Mark Harry]
      #5491620 - 10/27/12 12:18 PM

I will use long screws to make up for the bottom disc being small. This mirror mount design is like the adjustable size mirror mounts that fit more then one ID size. If my idea does not work I will make another disc.

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ngc2289
Post Laureate
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Reged: 04/13/05

Loc: Corpus Christi, TX.
Re: O.W.L. 6" f/5.875 mirror. new [Re: ngc2289]
      #5501300 - 11/02/12 06:09 PM

Well Bryan of Protostar said he mailed the tube last Friday by Parcel Post. The tube still has not shown up after a week. When I checked the Post Office web site it said that the package should take 4 business days. Four business days was yesterday. So your guess is as good as mine on when the tube will show up! The waiting is really tough!!!!!!!!!!!!!

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ngc2289
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Reged: 04/13/05

Loc: Corpus Christi, TX.
Re: O.W.L. 6" f/5.875 mirror. new [Re: ngc2289]
      #5501309 - 11/02/12 06:18 PM

Hmm. I was thinking maybe the delay is due to the crazy weather. If that is the case then I can wait! There are bigger concerns right now, and my little telescope project is not that important!!

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magic612
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Reged: 09/30/08

Loc: S. of Chicago's light dome
Re: O.W.L. 6" f/5.875 mirror. new [Re: ngc2289]
      #5501473 - 11/02/12 07:52 PM

My experience is that Parcel Post can be both substantially faster - or slower - than what the USPS site states. And the more you want it, the slower it is.

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ngc2289
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Reged: 04/13/05

Loc: Corpus Christi, TX.
Re: O.W.L. 6" f/5.875 mirror. new [Re: magic612]
      #5501859 - 11/03/12 12:35 AM

Yes I think you are right. I will just have to be patient.

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ngc2289
Post Laureate
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Reged: 04/13/05

Loc: Corpus Christi, TX.
Re: O.W.L. 6" f/5.875 mirror. new [Re: ngc2289]
      #5512069 - 11/09/12 05:59 PM

It has now been two weeks since the tube was shipped, and still no tube. What I don't understand is on the receipt e-mailed to me it stated that Blacklite tubes are shipped via FedEx not parcel post.

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ngc2289
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Reged: 04/13/05

Loc: Corpus Christi, TX.
Re: O.W.L. 6" f/5.875 mirror. new [Re: ngc2289]
      #5513386 - 11/10/12 04:03 PM

Well for better or worse I have sent an inquiry thru PayPal to Protostar. It has now been just about four weeks (Oct. 15) since I sent in my order. Twice I was told that the tube was shipped, and still no tube. So I decided to get PayPal involved since I seem to be getting no where on my own.

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joe nastasi
Vendor (Parallax Instruments)
*****

Reged: 11/15/06

Re: O.W.L. 6" f/5.875 mirror. new [Re: ngc2289]
      #5513461 - 11/10/12 05:08 PM

I too am waiting for a delivery from Protostar. Tried calling and emailing with no luck. What is going on with Protostar? Anyone else waiting for parts?

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stargazerfrank
super member
*****

Reged: 07/09/06

Re: O.W.L. 6" f/5.875 mirror. new [Re: joe nastasi]
      #5513711 - 11/10/12 09:24 PM

I placed 2 orders with them over last 2 weeks and had no problems fast service but that was just for flocking paper.

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ngc2289
Post Laureate
*****

Reged: 04/13/05

Loc: Corpus Christi, TX.
Re: O.W.L. 6" f/5.875 mirror. new [Re: stargazerfrank]
      #5518480 - 11/13/12 06:43 PM

So far I have sent two messages thru PayPal asking what is going on with my tube order. ProtoStar has not answered either e-mails. It looks like I am going to have to escalate to a claim at PayPal if ProtoStar is not going to respond. I think waiting 29 days for the tube is a fair amount of time to wait. So I'm going on the PayPal website now to send in a claim.

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ngc2289
Post Laureate
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Reged: 04/13/05

Loc: Corpus Christi, TX.
Re: O.W.L. 6" f/5.875 mirror. [Re: ngc2289]
      #5519751 - 11/14/12 04:07 PM

Well guess what showed up after all my fussing, and fuming, and hair pulling, and teeth gnashing(did I leave anything out?) !!!!!!!!!! You guessed it, it was the tube. Well I have to go now I have a crow sandwich I have to eat!!! A very big one!!

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Old Rookie
sage


Reged: 09/05/08

Loc: North Central Ohio
Re: O.W.L. 6" f/5.875 mirror. new [Re: ngc2289]
      #5520763 - 11/15/12 09:00 AM

Personally, I prefer mustard with my crow. It offers up some spice and it's heart healthy to!!

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ngc2289
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Reged: 04/13/05

Loc: Corpus Christi, TX.
Re: O.W.L. 6" f/5.875 mirror. new [Re: Old Rookie]
      #5521079 - 11/15/12 12:00 PM

I live in South Texas we prefer salsa!

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ngc2289
Post Laureate
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Reged: 04/13/05

Loc: Corpus Christi, TX.
Re: O.W.L. 6" f/5.875 mirror. new [Re: ngc2289]
      #5521171 - 11/15/12 12:48 PM

The tubing is only sold in 48" lengths so last night I cut the tube to 42". I have laid out where the focuser will go, and next I will lay out where the holes for the mirror mount will go. Stay tuned.

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ngc2289
Post Laureate
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Reged: 04/13/05

Loc: Corpus Christi, TX.
Re: O.W.L. 6" f/5.875 mirror. new [Re: ngc2289]
      #5521523 - 11/15/12 04:29 PM Attachment (13 downloads)

Here are a few more pictures. This picture is of the tube after cutting down to 42". Also I have cut out the hole for the focuser.

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ngc2289
Post Laureate
*****

Reged: 04/13/05

Loc: Corpus Christi, TX.
Re: O.W.L. 6" f/5.875 mirror. new [Re: ngc2289]
      #5521525 - 11/15/12 04:30 PM Attachment (11 downloads)

Pic. #2.

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ngc2289
Post Laureate
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Reged: 04/13/05

Loc: Corpus Christi, TX.
Re: O.W.L. 6" f/5.875 mirror. new [Re: ngc2289]
      #5521544 - 11/15/12 04:35 PM Attachment (10 downloads)

Pic. #3 & #4 are of the finder I made for this scope. Clear aperture of 44mm, focal length is 180mm makes this an f/4. I am using an old Optica b/c 16mm Erfle for the eyepiece.

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ngc2289
Post Laureate
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Reged: 04/13/05

Loc: Corpus Christi, TX.
Re: O.W.L. 6" f/5.875 mirror. new [Re: ngc2289]
      #5521549 - 11/15/12 04:37 PM Attachment (15 downloads)

Pic. #4. I forgot to mention the lens is a triplet.

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ngc2289
Post Laureate
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Reged: 04/13/05

Loc: Corpus Christi, TX.
Re: O.W.L. 6" f/5.875 mirror. new [Re: ngc2289]
      #5531943 - 11/21/12 10:51 AM Attachment (12 downloads)

Instead of painting the tube I used MonoKote. Using MonoKote is not easy or simple! It is extremely difficult to get the wrinkles out. After struggling with the MonoKote I just accepted I was not going to get the wrinkles out. So here are some pictures.

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