Centroid Community CNC Support Forum

martyscncgarage wrote: ↑Sun May 02, 2021 1:44 pm The capacitor may help

Thanks... already ordered one so I’ll try it.. I have also ground both ends of that shielded cable but that didn’t help.

LenelyWolf wrote: ↑Sun May 02, 2021 1:47 pm

martyscncgarage wrote: ↑Sun May 02, 2021 1:44 pm The capacitor may help

Thanks... already ordered one so I’ll try it.. I have also ground both ends of that shielded cable but that didn’t help.

Unground both end.
Also try just a pair of 18gauge wires. You have nothing to lose while you are waiting for the cap

martyscncgarage wrote: ↑Sun May 02, 2021 1:50 pm

LenelyWolf wrote: ↑Sun May 02, 2021 1:47 pm

martyscncgarage wrote: ↑Sun May 02, 2021 1:44 pm The capacitor may help

Thanks... already ordered one so I’ll try it.. I have also ground both ends of that shielded cable but that didn’t help.

Unground both end.
Also try just a pair of 18gauge wires. You have nothing to lose while you are waiting for the cap

Ok so this helped. I have ungrounded both ends and it was better but not perfect. Then I replaced cable for 18awg and now it runs nice and stable. Thank you. I really appreciate your help. Can you also explain why making it better actually made it worst.. I don’t get it

I suspect the larger wire added a bit of capacitance.
I can't explain it really. But glad it helped you.

Marty

Sounds like you had a bad wire. Maybe the wire had some corrosion and was not making a good connection.
(.5mm) 24 awg is a bit small and delicate. The added capacitance from increasing the size is trivial.

polaraligned wrote: ↑Sun May 02, 2021 6:12 pm Sounds like you had a bad wire. Maybe the wire had some corrosion and was not making a good connection.
(.5mm) 24 awg is a bit small and delicate. The added capacitance from increasing the size is trivial.

I have inspected the cable by taking it apart and didn’t see any visible damage. Well at least it is fixed. Should I still install that capacitor?

LenelyWolf wrote: ↑Sun May 02, 2021 6:33 pm I have inspected the cable by taking it apart and didn’t see any visible damage. Well at least it is fixed. Should I still install that capacitor?

I wouldn't bother.

It shouldn't hurt either. Acorn does not have the same spindle analog circuitry that Oak and All in One do.