Centroid Community CNC Support Forum

Marty do you know someone in the Phoenix metro who has a lathe and is willing to machine a short threaded 1/4" or 6mm hole in the top of my drawbar? I got the OMron encoder and jerry - rigged it on top without Franco's belt system, but I need to drill and tap a hole in the drawbar. I am of cou...

Based on the latest recommendations from Centroid, i have redone the wiring of the motors today -- I had originally cut off the molex and wired directly into the Acorn terminals. Today I have crimped molex spades back onto the wires and plugged in a CNC4PC ACCP board and followed Marty's wiring reco...

Real time feedback requires an encoder to be mounted at 1:1 to the spindle with timing pulleys and belt. Reach out to Franco and see if he'll print and sell you a bracket. He is a member on this forum The PM has a tachometer, and you can link up the 0-10V adapter board for the Acorn connection in s...

BE VERY CAREFUL Connecting that drive to Acorn Analog inputs. There needs to be signal isolation between them. Do you have a manual for that BLDC Drive? Post it here. Thank you Marty for these replies, they were very helpful, as always. I stopped the project and watched Franco’s videos. I do not ha...

I am not sure how to adjust the frequency on the PM 728. Here are some photos of the circuit (nothing obvious to adjust), front panel (the potentiometer is how you adjust the rpm), and motor. Sorry about the bad photos, could not reach better. So do I adjust the VFD, how else would I increase the ra...

I have run the spindlebenchtest but my mill has a max speed of 4250. How can i configure the voltage output to run the apindle over 3000 rpm?

martyscncgarage wrote: ↑Sun Feb 14, 2021 12:00 pm

cncsnw wrote: ↑Sun Feb 14, 2021 5:51 pm

Thank you gentlemen, I have ordered 3 NPN NC sensors from AutomationDirect. Hopefully they will play with the Acorn.

I have finally received the mill (2-1/2 months after ordering it) and have taken it apart to do the conversion. Please help me choose induction proximity sensors. I do have no name sensors off eBay that work with the Acorn bench test, but I want to install quality sensors as a "do it once, do i...

Desert Rider, Thanks so much for sharing your recipe! Did you use the Centroid Clearpath schematci? Essentially yes. I wonder how can I wire in 6 inputs for the limits (X+, X-, Y+, etc). I'd much rather do it separately than to wire sensors in series. Does the Acorn allow that? I don't see how it c...

Great idea Marty, I will share here what I did thus far. I assume the Acorn board and its computer connection have successfully been bench tested. Before wiring Clearpath motors to the Acorn, one should set them up using Teknic's MSP setup software . You should download the Teknic user manual and re...