Hairbear

On 17/09/2022 at 13:00, Anthonyexmouth said:

Ok, first full night with my new SM90. Just wondering if there's any way via 3d printing or something else to get a graduated ring for the rotator on one of these. Never had a rotator before and now I've got 2 on the same scope. 

When framing in NINA it would be nice to check the rotation needed on screen and then apply the same accurately on the scope.

I created the attached and printed it out on white sticky back acetate sheet. It fits exactly around the ring just forward of the rotator. I actually have a TS Optics CF APO-90 which is identical to the Stellamira except it doesn't have a carbon fibre tube. FLO have confirmed this to me, and I use the Stellamira 0.8 reducer/flattener. 

360 degree linear scale for telescope.odg

360 degree linear scale for telescope.odg