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Thread: New to cnc and I need HELP

  1. #1
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    Default New to cnc and I need HELP

    I have a used cnc router I have no idea the make no markings. The cp is running XP with mach3, cut2d, photo V carve. If I working with cut2d the cnc runes good. If I use photo V carve cnc router will work fine for about 45 min. and then it goes nuts cutting up, down and across my wood. So I thought it was the time I was running the cnc. I ran same g code and stop it ever 15 min and restart it work good for 30 min. and then goes nuts. So I thought heat and put fan on cp and controller worked great cut for hour and half. So about 1 hour later cnc cool down I started to cut and about 5 min. it goes cutting nuts. Can any one help me, scared to cut.



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    Default Re: New to cnc and I need HELP

    Heat sounds like a probable cause. Are the drivers mounted to a finned aluminum heat sink with thermal paste? Is there a fan playing on them directly? Cooling the computer won't hurt, but the drivers need to stay cool as well.

    Andrew Werby
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    Default Re: New to cnc and I need HELP

    Thanks for your input my control box is cooled by floor fan about 4 feet from it and the box is opened. It has no built in fan or aluminum heat sink no room in box. So if I need fans I have to get bigger box. The control box looks home made I have pictures if that would help? I know it sounds like I am answering my own question with no fans in control box but just making sure going in right directions. Thank you



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    Default Re: New to cnc and I need HELP

    If the floor fan helped it work longer, that indicates that more direct cooling might solve the problem. Yes, a fan built into a vented box, that blows past a finned aluminum plate (you can make one by cutting channels in a piece of thick aluminum) which the drivers contact intimately (which is how the thermal paste helps) would be a place to start.

    Andrew Werby
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    Default Re: New to cnc and I need HELP

    Heat is certainly a consideration. The other possibility is that Windows is getting busy with something else and forgets it's supposed to be running a machine. I wonder how much Windows junk is running in the background? You might type ''MSCONFIG'' in the Run box and turn off anything that is not needed.



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New to cnc and I need HELP
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