Centroid Community CNC Support Forum

Thanks so much!! At the moment I am not connected to the Acorn. I am just using the front panel of the VFD to start/stop and control RPM. I am using the build in potentiometer to control RPM. However, I have done the spindle bench test. I even brought out my Fluke True RMS meter with 3 digit resolut...

That makes sense. Mine came with a paper manual and no links. It is remarkably hard to find data on this thing which is, I suppose, a byproduct of buying a Chinese spindle.

However, after a bit of searching I have found a PDF that I believe matches what came with my VFD.

I finally got around to bench testing this spindle and VFD. At the moment I am just running it off of the front panel using the build in potentiomenter. It is not connected to the Acorn. I compared the settings for the VFD listed above with settings from Automation Technologies, and a thread on CNC ...

https://centroidcncforum.com/viewtopic.php?f=60&t=7811&p=68850&hilit=snubber#p68850 Post by tblough » Fri Oct 28, 2022 5:42 pm Any coil or inductive device connected to relay contacts (either Acorn relays or external relays) must have a snubber to prevent arcing and destruction of the r...

You do not need snubbers on the Acorn relays. Uwe Where did you buy your snubbers for 24v contactors Mr. Suntravel? I made my own. I put a .1uF capacitor in series with a 100 Ohm resistor. https://www.mouser.com/ProductDetail/KEMET/R53BI31005000K?qs=Li%252BoUPsLEnt3JED%252BxiqNvQ%3D%3D https://www....

Thanks for the responses guys! I really appreciate it. I was told my original controller used a 36V Meanwell PS so that is what I bought. This is the stepper I am using: It is a smallish Nema23 motor. I used a 2.8k Ohm resistor in the Gecko connectors https://www.omc-stepperonline.com/nema-23-bipola...

Here are a few pictures. Everyone likes pictures I think.

It may not be "right" but it is mine.

"You can easily run 110 through the relays up to 10A if I remember correctly." related reading. https://www.centroidcnc.com/centroid_diy/downloads/relay8_datasheet.pdf and https://www.centroidcnc.com/centroid_diy/downloads/acorn_documentation/acorn_ether1616_setup_guide.pdf Thanks Keith! ...

I have to ask, why on earth would you want stall homing? As Keith stated the G540 does work but there are FAR better choices for the same or less money that are MUCH faster and more powerful. I am new to all of this. My only experience has been my stock machine which used stall homing. It seemed to...

Oh... Do you know if there is any way the Acorn board can be compatible with stall homing? Also.... before I go down a wrong path... again... On my BB controller I could connect to a port and output 3.3V DC levels. I would turn these on with "M" Gcode. I connected these to relay boards. Th...