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Posts Made By: Keith Lawson

February 27, 2019 01:54 PM Forum: Telescope Making

New scope in the works

Posted By Keith Lawson

The first parts have been fabricated. Now the real fun begins, killing the design "bugs" as I go cwy

February 28, 2019 03:01 PM Forum: Telescope Making

New scope in the works

Posted By Keith Lawson

Primary mirror is now mounted (clipless). Nylon tipped setscrews keep the mirror in place. Hopefully, since the primary is 1.8" thick,  mirror flexure (loss of figure) should not be a problem. The mirror mounting design should help minimize temperture affects since most of the heat from the glass surfaces will be out of the light path. Best laid plans...

Should have more time to ATM tomorrow!

March 1, 2019 10:20 AM Forum: Telescope Making

New scope in the works

Posted By Keith Lawson

Primary cell and mirror cover completed. Rubber gromets used for primary collimation. Collimatable baffle installed. Hope to have the primary up on the rail in soon. The parts are done. Just have to tie it together. So far, so good...

March 1, 2019 02:28 PM Forum: Telescope Making

New scope in the works

Posted By Keith Lawson

Mirror cover.

March 2, 2019 05:39 AM Forum: Telescope Making

New scope in the works

Posted By Keith Lawson

Primary mirror assembly is up and mounted. Now to add the focuser and finder.

March 2, 2019 12:28 PM Forum: Telescope Making

New scope in the works

Posted By Keith Lawson

Hi Greg,

The hacking continues... Focuser and finder installed. Now on to the secondary mount. This will be a bit more of a challenge. I could not find a short piece of, reasonably priced, 5" tubing so I may go with a 2 vane spider.

March 4, 2019 04:36 AM Forum: Telescope Making

New scope in the works

Posted By Keith Lawson

Found an "abandoned" steel dew shield in my scope junk. Cut to 3 inches length. And the ATM project continues...

March 4, 2019 10:36 AM Forum: Telescope Making

New scope in the works

Posted By Keith Lawson

Well... The hardware portion of this project is all put together. Now its time for the tweaking and adjustments to begin. Fingers crossed wink

March 8, 2019 11:35 AM Forum: Telescope Making

New scope in the works

Posted By Keith Lawson

Well it's up and mounted and wouldn't you know it, it's raining outside sad The tweaking continues...

March 10, 2019 05:00 AM Forum: Telescope Making

New scope in the works

Posted By Keith Lawson

Hi Darian,

I hope to get first light tonight. Did some rework on the circular spider to knock down the sensivity to vibration. The hacking continues...