Centroid Community CNC Support Forum

Fractional horsepower and above motors require a contactor, as you have found out, you will blow up the onboard relays. https://centroidcncforum.com/viewtopic.php?t=4929 Gary, the post you link to: do you have any centroid versions left to sell? Also, how did you manage to get so many relay boards ...

Yup, figured out the hard way. 24VDC supply to the driver of a 100w BLDC motor for a small grinder motor (not my spindle motor). Did my maths and got 4.2A so I thought that I was safe (10A max on the relay) - didn’t account for the current surge, basics, doh! I have re-wired and it now works great b...

I tried to use the relay to switch on a BLDC motor driver which switch on using centroid then wouldn’t switch off. On investigation, I found that the relay would no longer switch. I thought that it was a faulty relay so moved to another relay and the same happened. It was the driver damaging them. T...

Does anyone know where I can find the exact relay board that centroid use. I have and acorn and Ether1616, all 3 relay boards are identical, however, I have blown 2 individual relays. I tried to desolder the relays to replace the components but they don't want to come off. I have found plenty of sai...

Merry Christmas! Thank you for your support Marty, and everyone else too! bring on 2021.

Thank you all! I can confirm that all is working correctly now. It was down to that pesky extra tooth that sneaked in on one of my pulleys. From now on, I’m counting every tooth on every pulley that I use!

(If anyone in the UK is looking for an encoder, I have 3 lying around that I don’t need)

Thank you gents for the suggestions, because of your recommendations, I believe that I have identified the issue: Having checked the PID screen, the pulse is good at every 4096 counts, however, having looked closely, it wasn't spot on with a single revolution (by eye it seemed to be ok but when usin...

Yes, 5mm pitch on each axis. Dimensions of parts produced are all spot on, also use the same settings when in mill mode. Steps per rev is correct. Backlash is more than I like but accurate.

Fresh report attached. I've just noticed that I'm still running a BETA version on lathe! I will update that first thing in the morning and have another go.

I was really hoping to post details of my success but sadly not! Ordered the new encoder, machined a new mount for it, got the new encoder, broke the GT2 pulley belt, ordered a new belt, fitted the new belt, tried to turn a simple M10 thread and got the same results :( Gutted! The only thing that I ...