Hi gang,

I emailed CNCRP this morning to see if they had anything to say and haven't heard back yet so I thought I'd post here as well. I finished building the CPR 4x2 Standard machine, NEMA 23 motors. I did the DIY kit (wiring this kind of stuff up doesn't bother me) with the MX4660 and an ethernet smoothstepper. Everything works wonderfully. Just for fun I set the rapids to 1000ipm and the machine handled it no problem. I have run a few different short jobs already with no issues at all cutting at 250-350ipm. Absolutely amazing to watch.

My question is when the motors aren't running on a job and they're just idling. I filmed the noise so you can hear what is going on, see the video below and be sure to turn up the volume so you can hear the noises. It sounds like the motors are kinda turning off and then back on again really quick. But I don't notice any ill effects so I'm hoping this is a normal function of the MX4660 or the smoothstepper.



What do you guys think? Safe, or did I get something sort of faulty?

Thanks!

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