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EQ3 Pro Synscan Supertune?


Thalestris24
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2 hours ago, Dr_Ju_ju said:

I have "tuned" my EQ3 Syscan (previous version ?). Like you, I found no direct info, so basically followed the EQ5 tuning(s) & 'downsized' ….

Ok, thanks. I thought of doing that also but wasn't sure how comparable they are under the cover. I've seen (and downloaded) Martin Pyott's videos which seem pretty comprehensive - for the eq5 pro. The thing is, though, is it worth the time and effort i.e. will it improve the eq3 pro?

Louise

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The mechanics are basically similar except for scale...  as for will it improve things ?  for me it did, less 'slop', smoother movement, less backlash... 

To take it further, I would have to fit it with belt drive, as I've done on an EQ5, but as I only use an AZ-EQ6 now, & the EQ3 is for traveling, I've left it as is.

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Me... I guess. Mainly aiming to reduce the DEC stiction and backlash.

I got the DEC nut off:

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I think this gasket takes the DEC thrust!

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Fitted a thrust roller race:

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This is my grease:

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Slathered the worm wheel:

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Fitted a thrust race at the other end of the DEC spindle:

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Added washers to adjust the worm position for the thickness of the upper roller bearing (and to keep it a bit more solid) (NB removing gasket meant this doesn't have to be as thick as the bearing.

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Set a gratuitously crude rig to measure backlash as I tried to minimise it:

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Replace the puny stepper I used for DEC with beefier one (with more steps):

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I gave the RA axis a darn good adjusting and greasing as well. Much Binding in the Marsh no more...

DSCN8744.JPG

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2 hours ago, Dr_Ju_ju said:

The mechanics are basically similar except for scale...  as for will it improve things ?  for me it did, less 'slop', smoother movement, less backlash... 

To take it further, I would have to fit it with belt drive, as I've done on an EQ5, but as I only use an AZ-EQ6 now, & the EQ3 is for traveling, I've left it as is.

Is there a commercial belt drive available? I've not heard of one.

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