Question to users of the Celestron Focus Motor!

[Geoffw]

Hi folks, I recently became the proud owner of  a Nexstar XTL GPS 9.25" telescope with a number of extras fitted.  This telescope is a bit of a jump for me but I'm getting to know my way around it.  Among the extras it has the Celestron Focus Motor (#94142) fitted.

My question is about the limits of the focuser both 'in' and 'out'.  mine never seems to stop when I hold the button down on the controls to focus close say on a nearby tree, or in the other direction on a a distant object.  If I hold the button down the motor seems to go on  buzzing away.  When it gets to its limit is there any indication?

 

Geoff

[Geoffw]

I suppose other Focus motors work in a similar fashion, so how do they indicate you have reached the physical limit?

[Waldemar]

I assume it will just stop...

[Merlin66]

Usually 30 turns of the focuser knob from full in to out....

I've never tried to "drive against the stops"......

 

[Geoffw]

Trouble with having the Focuser fitted is you can't get the 'feel' of the scope

[rwilkey]

Hi Geoff, have you tried using the focuser yourself without the motor?  If you can this will help you understand what's happening.  As Merlin66 above implies, there is quite a lot of focuser travel on a scope like this.  Good luck!