[Clancy Lane (Phil)]

Thanks for your input Greg!

One side of the saddle has actually worn away so badly that there is a hole that can be seen as a 'U' in the pic.

I have attached another image that might show this a bit clearer.

Four of my scopes are fitted with electric focusers:

Megrez 90; Meade 127 APO; MN190 and the Tak.

Only the Tak has a problem.

The Tak was horizontal during testing and no amount of adjustment to the focuser made any difference.

The other question remains: why is there a black outline around the worn area?

The worry is, of course, that if this much damage has been done in only a short period, how much worse is it going to be later?

regards,

Phil