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The Piston AZ mount

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#26 Gray

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Posted 23 April 2011 - 09:04 AM

test

#27 Doug76

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Posted 23 April 2011 - 01:26 PM

As Eric and Frank opined...Awesome and Brilliant!

#28 Ed D

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Posted 23 April 2011 - 05:55 PM

I'm VERY impressed! Nice work.

Ed D

#29 Tavi

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Posted 28 April 2011 - 01:32 PM

Thank you!
Tuesday I've tried the mount with the refractor. The fine tune mechanism work great, except a small vibration on the azimuth. I will put a felt disk under the piston to brake it in position, cause the roler bearings allow moving it too easy.

I'm sure the mount will cary the future classic cassegrain 200 F/15 I will make this summer.

#30 Tavi

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Posted 28 April 2011 - 01:35 PM

Neo, I will keep the idea of the worm gear for the next piston mount, I have a lot of them! Thank you and clear sky!

#31 Tavi

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Posted 01 August 2012 - 04:40 PM

Because I had allmost finished the new clasical cassegrain 8" - wich I'll show you in another topic - and in the testing phase some problems has arised, I've made some improvements on the heavy piston AZ mount. First, I made a vixen style bar and adapt a vixen head from EQ6 mount, then a counterweight and the bar to put the telescope in equilibrium.

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Cause the slips of the altitude clutch and the too big backlash of the fine tune mechanism on the azimuth, I've made some modifications to solve these problems.

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Also I put new knobs on the screws and a eccentric lever instead a screw to activate the altitude clutch. To make the movements smoother I put custom lexan washers instead steel ones.

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Now the mount work great, like when small refractors was on it, almost like a dobsonian when not used the fine tune mechanisms.

#32 Tavi

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Posted 10 January 2013 - 03:18 PM

A new small piston AZ mount, finished last month:
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#33 Tavi

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Posted 10 January 2013 - 03:23 PM

The new mount has fine tuning screws on both axis and a vixen style head. The RFT refractor 90x600 in the picture is too heavy for it, but I use this mount with the mini maksutov MTO11-CA and is working great.

The only piece made on a lathe is the elastic textolit bushing which is the altitude clutch. Other pieces was made using hand tools and the homemade minimill.

#34 Unknownastron

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Posted 25 January 2013 - 12:43 AM

Very good ideas and beautiful work. You are a very talented craftsman and your finished works look as much like art as machine. I look forward to your threads about that beautiful metal cassegrain. That is one of the best-looking telescopes I have ever seen.
Clear skies and clean glass,
Mike

#35 jmclaugh2001

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Posted 25 January 2013 - 02:18 AM

Sweet! I luv it!!

John

#36 Tavi

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Posted 25 January 2013 - 02:27 AM

Thank you!
I could't wait to bring them again under the dark sky.

#37 Tavi

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Posted 25 January 2013 - 02:45 PM

unknowastron, here is the topic about the cassegrain with details:
http://www.cloudynig...&Board=atm&N...






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