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Old 16-07-2015, 08:06 PM
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OzEclipse (Joe Cali)
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Join Date: Jun 2012
Location: '34 South' Young Hilltops LGA, Australia
Posts: 1,497
Quote:
Originally Posted by Russman View Post

Thanks heaps Joe, appreciate you time & efforts, love the astro community, everyone seems willing to help out each other!
No problem. If you want to change any construction parameters, let me know. Do PM me. I get busy at time and don't always check IIS.

It's very quick to re-run the optimization on any of the primary parameters - primary radius, motor speed etc and spit out the results. As explained in the Feb 88 S&T article, the ratio of the hinge separation to the slide contact length b/c is critical to the stability and works best kept at 2.186 so I keep that ratio fixed.

Also remember that no matter how accurate you make it, you will need to tune out the construction errors by trimming the motor speed at the end.

I contacted Profilium today about those hinge fittings. Thanks for the heads up on that. Is that the brand you use? how solid are the screw clamped joints you use? Do the boards bounce much? There a fair cantilever there.

cheers

Joe
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