Hi Spencer
No.? Some are straight though...
https://www.cnc4you.co.uk/Breakout-board-BM01?search=Break%20out%20board
But read the spec on this one...
https://www.cnc4you.co.uk/Breakout-board-CP0-10V-CNC-4-Axis-with-Charge-Pump?search=Break%20out%20board
Dave
Sent from my Samsung Galaxy smartphone.
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-------- Original message --------
From: spencer@...
Date: 29/01/2020 5:14 pm (GMT+00:00)
Subject: Re: [MachCNC] Electrical Noise
I have been following this thread but not carefully because I didn't think I had a problem. Now I am thinking that some minor drift I have over time could be missed steps not mechanical as I thought.?
Is there any problem setting the debounce time as 10 or 20 us??
if this is input debouncing then what signals are being considers as noise sources, limit switches? there is no position feedback?
also, aren't all break out boards opto issolated?
?
?
Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...Spencer@...Spencer@...(425) 791-0309
(707) 223-8212
------ Original Message ------
Sent: 1/29/2020 6:00:22 AM
Subject: Re: [MachCNC] Electrical Noise
I've posted my solution to electrical noise on this forum a few times and no one has come back and said it did or didn't work for them, but when I had random missed steps? and spent a long time trying to find the fault... I fitted an Opto isolated BOB and I've never had a missed step since. Problem solved.
Dave
Sent from my Samsung Galaxy smartphone.
-------- Original message --------
Date: 29/01/2020 12:55 am (GMT+00:00)
Subject: Re: [MachCNC] Electrical Noise
> have you tried the debounce input setting in general config? had a similar
> issue long time ago and debounce cured it. don't remember what I had to set
> it at but it worked.
> haven't used Mach3 for quite a while.
> Chuck
Just tried that.? And the problem with working on these types of issues is what I just ran into.? I set it to 10x40uS.? Quit. Restarted MACH3 and homed over a 4" distance.? No problem.? Perfect.? Moved the knee back up. Set the debounce back to 0.? Shut down.? Restarted MACH3 and homed again over a 4" distance.? No failure.? Now it won't fail.
Sigh.? I think I'll leave it at 5x40uS and see what happens while I fab up a new cable and connector that lets me deal with the shield better.
If all was working right (as in wrong)? it would fail repeatedly without a debounce but succeed with a debounce.? Then I could change wiring, add ferrites etc. and watch the problem vanish.? But no.? It's going to be stubborn.
John
>
