Is this a Backlash problem?

[magician]

Using the Synscan handset to slew here and there, the mount has a tendency to'Over run' after I release the directional button (Any Direction). The

Meade stops dead,without this'Over run' any ideas on how to cure it, its most annoying

Cheers Frank

[Greg]

Frank,

Could be that due to the weight that the HEQ5 can carry if it were to stop dead some damage could occur due to the ammount of torque on the drive gears and clutches....

Just imagine slewing a 8" Newtonian and ED80 with camera gear and 3 weights at X800 then the whole lot coming to a dead stop :shock: My poor Canon would be catapulted into the neigbours field!

I just slew to the area of the target then go down to X3 or X5 which is fine.

The ETX models have different gears and motors depending on each individual model..The ETX 70 had nylon gears and fairly weak motors whereas the ETX 105 had metal gears and beefy motors as they carried a greater weight.

If you notice there's also a slight delay at the higher slew speeds when starting to move due to the same reason...

[Kaptain Klevtsov]

It's a soft start/stop system, when we're being posh. Basically it limits the acceleration and deceleration of the mount to prevent overloading of the motors. This method also allows the slewing to happen faster if the speed is ramped up and down as the load on the motors is reduced.

HTH

Captain Chaos

[magician]

Greg/CC,

Many thanks for the replies fella's,yes it all makes good sense,I can live with 'Soft start' and will reduce slew speed on approach,once again ,thanks for that.

Cheers Frank,

[MartinB]

If it isn't a feature of the goto it's called sticktion and is a feature of a lot of mounts. Can be quite a nuisance. With Skysensor 2000 if you press the opposite direction key and release this stops the movement. Don't know if syncscan is the same.