principia

9 hours ago, Davey-T said:

I can still move mine up and down with the alt locked but this is in fact handy for tweaking it during imaging without loosening it, doesn't cause any problem.

Dave

Many thanks for the comments. I happened to be passing FLO in Exeter this afternoon and popped in with the SA. A very helpful SteveB swapped the wedge out straightaway.

The replacement is much more positive in operation - working exactly as Dave describes above. Now down to business!

Richard

I bought the SA recently and had a first chance to use it last night.

I noticed that the altitude lock on the wedge does not seem to lock properly and I'm worried about over-tightening the lock in case of damage to the plastic lever. It's as if more shims are needed to make the slot a tighter fit. At the moment the lock doesn't seem to be strong enough to 'close' the supports to clamp tightly.

There is also a lot of backlash in the altitude control.

I'm wondering whether all the SAs are like this and I just need to get over it, or is mine faulty?

Thanks

Richard