Search found 669 matches

by Dave_C
Sun Jul 03, 2022 3:42 pm
Forum: Centroid Acorn CNC Controller
Topic: Faraday tape/ copper tape for EMI shielding encoder cable
Replies: 13
Views: 2287

Re: Faraday tape/ copper tape for EMI shielding encoder cable

Connecting one end or both of the shield borders on religion for some. Crusades and jihads have been waged on this topic and a gathering of 10 experts will get three different majority decisions. Personally, I connect the shield at the end where the signal originates for control signals (I.e. curre...
by Dave_C
Sun Jul 03, 2022 11:28 am
Forum: Centroid Acorn CNC Controller
Topic: Rigid tapping skips holes randomly
Replies: 15
Views: 2423

Re: Rigid tapping skips holes randomly

nice, glad you got things working, thanks for posting the video. i run in air first..then tap in wax..if you have any issues at all the wax thread will be ruined. Its a great test...then go metal... My video above is not by the OP, I'm just sharing that I had a similar issue and sharing how I solve...
by Dave_C
Thu Jun 30, 2022 1:42 pm
Forum: Centroid Acorn CNC Controller
Topic: Rigid tapping skips holes randomly
Replies: 15
Views: 2423

Re: Rigid tapping skips holes randomly

Even after you get the G-code corrected you may still see an issue, I know I did at first until I got all the settings for Rigid Taping set right. In my case I was skipping holes just like you are showing, and I could not figure out why. The problem turned out to be that the minimum tapping speed wa...
by Dave_C
Sat Jun 25, 2022 3:08 pm
Forum: Centroid Acorn CNC Controller
Topic: what causes 455 Spindle encoder quadrature error and how do you make it less picky?
Replies: 9
Views: 1256

Re: what causes 455 Spindle encoder quadrature error and how do you make it less picky?

Quadrature errors means that it IS missing pulses. You've just disabled the warnings; not fixed the problem. TRUE and if your RPM is that far off you must be getting lots of missed pulses OR you have the encoder count setup wrong! IE: A 1,000 line encoder has 4,000 pulses per rev and so on. My nois...
by Dave_C
Fri Jun 24, 2022 11:55 am
Forum: Centroid Acorn CNC Controller
Topic: what causes 455 Spindle encoder quadrature error and how do you make it less picky?
Replies: 9
Views: 1256

Re: what causes 455 Spindle encoder quadrature error and how do you make it less picky?

I had the same issue 4 years ago and the problem turned out to be "NOISE" and the reason is my encoder cable is not shielded. I sent the encoder to Centroid, they tested it and said it was 100% fine. I just need to cut the cable short, add a plug and make a new shielded cable. Had the same...
by Dave_C
Fri Mar 18, 2022 11:14 am
Forum: Centroid Acorn CNC Controller
Topic: Threading issues
Replies: 8
Views: 1559

Re: Threading issues

I'm going to go to a timing pulley setup with a serrated belt just to make sure.
Hum, did not know that you did not already have a timing belt type setup. If the belt you have slips at all then the lead is going to change for sure.

Dave C
by Dave_C
Thu Mar 17, 2022 12:01 pm
Forum: Centroid Acorn CNC Controller
Topic: Threading issues
Replies: 8
Views: 1559

Re: Threading issues

There is a possible third reason and this was the one that caused my threading to look and act just like your threads in your photos. Same missed lead-in! Electrical noise causing false index pulses! I could not solve the problem until I bought a better encoder and cable from Centroid. Threads have ...
by Dave_C
Fri Jan 28, 2022 11:43 am
Forum: Centroid Acorn CNC Controller
Topic: cant connect to controller, been working on it all day (Resolved)
Replies: 8
Views: 1512

Re: cant connect to controller, been working on it all day (Resolved)

Just and FYI: I've had my Acorn setup up and running faultlessly for years but I went to make a part yesterday and the Acorn would not connect! I had done nothing to the computer but let windows do upgrades as needed or requested. What I have learned is that windows updates can and did change my Eth...
by Dave_C
Sun Nov 28, 2021 6:48 pm
Forum: Centroid Acorn CNC Controller
Topic: Displayed Spindle Speed is Incorrect
Replies: 36
Views: 7937

Re: Displayed Spindle Speed is Incorrect

Most excellent video! Even I can do one of these now, LOL

That answered all of my questions and hopefully the OP will be able to solve his as well.

On to the next probelm!

Dave C.
by Dave_C
Sun Nov 28, 2021 11:00 am
Forum: Centroid Acorn CNC Controller
Topic: Displayed Spindle Speed is Incorrect
Replies: 36
Views: 7937

Re: Displayed Spindle Speed is Incorrect

Greg, thanks for posting that video! Franco did not show how to hook up the two wires from the KBSI to the replace the 3 wires on the knob control! Does anyone know what terminals on the KBSI hook to what wires on the three wire knob control? I looked at the attached wiring diagram some post back bu...