Centroid Community CNC Support Forum

I am exploring building a custom machine that will have a layout most similar to a lathe, but it’s primary purpose will be milling using a C axis. It would be a 3 axis machine with x,z, and C axis. I have seen that some systems that allow for x, y movements to be converted into x, c movements by the...

Thanks so much for all of your detailed replies! I ordered the one from ebay several people suggested. Thanks!

I am looking for a decent tool length sensor that I can mount permanently to the machine to easily touch off tools. I have a spindle with ceramic bearings, and I have heard that this can cause a poor electrical connection for sensors based on conductive tooling. Since I'd like to touch off periodica...

martyscncgarage wrote: ↑Tue Mar 09, 2021 8:40 pm C86ACCP version 2 is working quite well and easily for me. I'm hoping to do an update on my Project very soon.

Marty

Cant wait to see the update!

curiousMike wrote: ↑Mon Mar 08, 2021 10:29 pm The system has been updated to 4.62. The problem as stated before remains the same.

Any ideas??

Did you see my post?

Do you have a +24v jumper going to the +24v terminal near the inputs? Is that red wire going to 24IN or input 8? I’d suggest pulling up the schematic and double checking that portion of the diagram. Also, I see an exposed wire hanging right over your acorn. That is a big risk, weather it is 24v or c...

1. Have you tested at 400khz? I am using that because of a 4th rotary axis setup that has a 15:1 gear reduction, and wanted to maximize steps/rev for that setup. I don't follow. If you wanted to resolve something like 0.01 degrees (which I doubt you'd ever need) with a 15:1 ratio, you'd only need 3...

- the max current rating is for all the chip channels combined, the clearpath to Acorn is not using all of them so no risk at exceeding current ratings. - 1/2 watt 100 ohm at 5 volts runs 'cool', 1/4 watt will run hot (which is ok, just easy to go to 1/2 watt and not have it be hot) - the 5 volt 10...

It seems to me that a 100 ohm resistor on a 5v system would have the acorn outputs sinking a current 58 mA. This is above the maximum stated in the Acorn user manual. Is this correct? Clearpath Input Current Draw.PNG Acorn Specifications.PNG Thanks, Clay This is what I'm talking about. First, per T...

It seems to me that a 100 ohm resistor on a 5v system would have the acorn outputs sinking a current 58 mA. This is above the maximum stated in the Acorn user manual. Is this correct?
Thanks,
Clay