The Shop > Tools
Isel CPM3020 cnc machine - electronics rebuild
raynerd:
I put a low bid in for a CPM3020 that had just come from a school closure and managed to win it. Photos were rubbish and I expected very little but it's German made, ball screws and a good solid heavy frame and case - I thought it was worth the money and based on eBay believe I could double the price I paid just chucking it straight back in in a cleaner state with better photos
Gave it a clean up just for my own piece of mind and I was chuffed with it:
Sadly, but as expected it's an old integrated driver board.
Just stripped it down further to find some usable stepper motors. So the next step is to strip out all the electronics. See if I am confident enough in keeping the PSU or maybe pull this out and replace but the drivers are going to need to be replaced that is for sure. Lots of work to do.... Oh heck, my Orrey project!!
tom osselton:
Shouldn't be that bad cost wise, I'm just starting to collect parts for a cnc router. I bought ballscrews and rails off ebay (China) 300 x 900 x1150 along with the control board so I will be following your progress!
PK:
At this scale, IMHO, it's hard to go past the G40 http://www.geckodrive.com/geckodrive-step-motor-drives/g540.html . Mainly because of the amount of fault protection it offers, but also because it's pretty much a drop in replacement for what you have...
philf:
--- Quote from: PK on January 14, 2016, 05:25:00 AM ---At this scale, IMHO, it's hard to go past the G40 http://www.geckodrive.com/geckodrive-step-motor-drives/g540.html . Mainly because of the amount of fault protection it offers, but also because it's pretty much a drop in replacement for what you have...
--- End quote ---
The downside with a unit like the G540 (other than price) is that it's not modular so if one component goes down the whole lot goes down. On the other hand it saves a lot of wiring and Gecko drives generally get good press.
Is it not possible to get the existing controller up and running?
Phil.
awemawson:
There is a thread on CNC zone about resurrecting one of these machines:
http://www.cnczone.com/forums/techno-cnc/157780-cad-autocad-software-forum.html
and a load of information here:
http://www.spline.nl/machines/cpm.html#Booster
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