Improved Focusing Knob for Sky-Watcher Mak 127

Gary · Post by **Gary** » Wed Jul 21, 2010 12:21 am

Finally!!!

Push rubber washer through rubber leg tip. Push rubber leg tip over focusing knob. Everything fits in snugly - rubber through rubber on rubber.

No metal parts involved means no potential/accidental damage to original focusing knob rubber surface.

Rubber Leg Tip
inner diameter = 17 mm (although the words "19mm" is engraved inside)
outer diameter = 22 mm
Cost = $0.30

Rubber Washer
inner diameter = 20 mm
outer diameter = 44 mm
Cost = $0.80

Best $1.10 I have ever spent in my life. 525 power here I come!!!

orly_andico · Post by **orly_andico** » Wed Jul 21, 2010 2:44 am

Woohoo!

At 525 power your mount is your enemy. I've used 1175X (!) with my C9.25 but it's real shaky on the GP... I don't dare touch the damn thing (I use my electric focuser, which has now been much improved).

timatworksg · Post by **timatworksg** » Wed Jul 21, 2010 12:49 pm

That plus our shaky hands...wobbles are common!

Gary! I noticed in the first pic your actual focus knob has a rusty looking small hole at the side! Seems like a grub screw locking the focus knob to the focus shaft! If so, it can be removed. I still have the Knob....you want it?? Lemme know ya...we can meet Friday and install!

Gary · Post by **Gary** » Wed Jul 21, 2010 4:00 pm

Yes. Sure. Thanks!