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Equipment Discussions >> ATM, Optics and DIY Forum

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kfrederick
Carpal Tunnel


Reged: 02/01/08

Re: 17 inch spotplots new [Re: mark cowan]
      #5316834 - 07/14/12 12:19 AM

Mark Not sure yet. But having A world class design and the matched set of optics for it a big step.I do not have to prove it works better than any 17 inch design Zemax and Oslo already have. Very cool to work on this .

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kfrederick
Carpal Tunnel


Reged: 02/01/08

Re: 17 inch spotplots new [Re: mark cowan]
      #5361472 - 08/10/12 10:39 AM Attachment (32 downloads)

Here is the OSLO spot plot for the finished Set of optics for a 17 inch unobstructed Reflector.The light looks happy .

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kfrederick
Carpal Tunnel


Reged: 02/01/08

Re: 17 inch spotplots new [Re: kfrederick]
      #5361508 - 08/10/12 11:06 AM Attachment (34 downloads)

One more

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mark cowan
Vendor (Veritas Optics)
*****

Reged: 06/03/05

Loc: salem, OR
Re: 17 inch spotplots new [Re: kfrederick]
      #5362527 - 08/10/12 09:49 PM

That should work.

Best,
Mark


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gatorengineer
Carpal Tunnel
*****

Reged: 02/28/05

Loc: Hellertown, PA
Re: 17 inch spotplots new [Re: mark cowan]
      #5364818 - 08/12/12 02:24 PM

Kevin,

You are continuing to push the designs, many kudos.... What is the sensitivity of positioning and alignment? I have seen some designs that at a spacing error of 0.05" the design turns to peanut butter....

Thanks and looking forward to seeing it under the stars soon.

Mark


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kfrederick
Carpal Tunnel


Reged: 02/01/08

Re: 17 inch spotplots new [Re: gatorengineer]
      #5364898 - 08/12/12 03:16 PM

Mark Any good machine shop should be able to do that with the top five things . But for sure not easy with the tilted offset lens . I could not do any of this without a CNC machinist . More ATMs should try one .

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gatorengineer
Carpal Tunnel
*****

Reged: 02/28/05

Loc: Hellertown, PA
Re: 17 inch spotplots new [Re: kfrederick]
      #5364980 - 08/12/12 04:28 PM

I dont disagree with the machine shop, my personal ATMing is limited to a compount slide miter and a tablesaw. When It builds in to an 1/8" cumulative tolerative, I feel fantastic. More often the cumulative tolerances are more... But as you say another great project.... Looking forward to the results.

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kfrederick
Carpal Tunnel


Reged: 02/01/08

Re: 17 inch spotplots new [Re: gatorengineer]
      #5366010 - 08/13/12 08:05 AM

The Chief Corrector is no different than a Eyepiece, Coma Corrector or Barlow lens .The lens are held correctly in a machined cells .Having the design is 99.9% of making one.And Mike has given us that .My 20f8Chief works with ply board cell so they cannot be that bad .Having a working chief to use is great as I can move a lens and see what happens . All for fun .

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kfrederick
Carpal Tunnel


Reged: 02/01/08

Re: 17 inch spotplots new [Re: kfrederick]
      #5384925 - 08/24/12 04:55 PM Attachment (23 downloads)

Got some parts for the 17 Wide Band CHief today .

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kfrederick
Carpal Tunnel


Reged: 02/01/08

Re: 17 inch spotplots new [Re: kfrederick]
      #5384998 - 08/24/12 06:00 PM Attachment (18 downloads)

Interlocking box for the top . Slots hold the optics

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kfrederick
Carpal Tunnel


Reged: 02/01/08

Re: 17 inch spotplots new [Re: kfrederick]
      #5389685 - 08/27/12 12:27 PM Attachment (15 downloads)

Top box with lens holders All 1/8 inch aluminum .CNC water jet did the work .

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mark cowan
Vendor (Veritas Optics)
*****

Reged: 06/03/05

Loc: salem, OR
Re: 17 inch spotplots new [Re: kfrederick]
      #5389835 - 08/27/12 02:05 PM

Kevin, what's your prediction for having this thing together? The suspense is killing me at this point...

Best,
Mark


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kfrederick
Carpal Tunnel


Reged: 02/01/08

Re: 17 inch spotplots new [Re: mark cowan]
      #5390921 - 08/28/12 06:33 AM

Hi Mark It should not take too much time. I have all the pieces . Problems may come up .But it should go together soon This is to try out some ideas . The inside of the box could be used as a mold and the top could be carbon fiber . Thinner aluminum could be used .Or One could get carbon fiber interlocking box water jet out . Happy times

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kfrederick
Carpal Tunnel


Reged: 02/01/08

Re: 17 inch spotplots new [Re: kfrederick]
      #5512781 - 11/10/12 07:46 AM

I had first light on the 17 Wide Band CHief. It works very nice .Thanks to Dave Mike and ED For there part in making this.

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Dave O
sage
*****

Reged: 12/21/11

Loc: Sri Lanka
Re: 17 inch spotplots new [Re: kfrederick]
      #5513906 - 11/11/12 01:19 AM

Post some pics when you get a chance.

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kfrederick
Carpal Tunnel


Reged: 02/01/08

Re: 17 inch spotplots new [Re: Dave O]
      #5514033 - 11/11/12 06:59 AM Attachment (13 downloads)

The secondary optics

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kfrederick
Carpal Tunnel


Reged: 02/01/08

Re: 17 inch spotplots new [Re: kfrederick]
      #5514054 - 11/11/12 07:48 AM Attachment (17 downloads)

The top box holding the tilted secondary and corrector One way to think of the setup is the secondary and primary in phase when the laser hits the two spots. a very tight spec but easy to achieve .

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kfrederick
Carpal Tunnel


Reged: 02/01/08

Re: 17 inch spotplots new [Re: kfrederick]
      #5514722 - 11/11/12 04:18 PM Attachment (14 downloads)

The bottom

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kfrederick
Carpal Tunnel


Reged: 02/01/08

Re: 17 inch spotplots new [Re: kfrederick]
      #5514724 - 11/11/12 04:19 PM Attachment (13 downloads)

Primary cell

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kfrederick
Carpal Tunnel


Reged: 02/01/08

Re: 17 inch spotplots new [Re: kfrederick]
      #5514759 - 11/11/12 04:38 PM Attachment (15 downloads)

The 26 inch mounting used for the 17 inch WB Chief

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