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View Full Version here: : Counterweight for a 10 newtonian on an eq6 pro go to


GSL
11-07-2008, 08:18 PM
Planning to put a 10 newtonian on a eq6 pro go to. Just wondering from anyone who has done this how much counterweight am I likely to need? Thanks

Tilt
11-07-2008, 08:54 PM
I'm very close to doing this, just need to collect a set of rings to wrap around the GSO 10" tube and I'm ready to roll. I am looking at having around 15kg (total) in counter weights, I believe this should be good but I will know for sure when I try it.

peter_4059
11-07-2008, 09:05 PM
I've got 3 standard cw's for the 10" GSO and a 4th when I use a side mounted ED80 guide scope. I think each cw is 5kg.

Ian Robinson
11-07-2008, 11:44 PM
A little bit of basic physics (working out moments about the centre of balance) will give you how big a counterweight you need to balance the OTA --- Counterweight system on your GEM.

Essentially arrange that OTAmass x length from pivot point = counterweight x length down the counterweight shaft.

Note : you also need to balance the system so the tube is balanced too.

vash
12-07-2008, 10:07 AM
I use about 3 for the 10 inch tube only, with guiding you need 4 of them