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Author Topic: max feed rate?  (Read 10155 times)

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Re: max feed rate?
« Reply #20 on: December 17, 2006, 10:26:01 PM »
Post your XML and we will see what is going wrong here...
Fixing problems one post at a time ;)

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Re: max feed rate?
« Reply #21 on: December 18, 2006, 07:35:25 AM »
how does one do that. i guess what i mean is where in mach can i find the xml file.
Re: max feed rate?
« Reply #22 on: December 18, 2006, 09:14:38 AM »
Under mach3 there should be a Mach3Mill.xml file. please post that file

Thanks
Fixing problems one post at a time ;)

www.newfangledsolutions.com
www.machsupport.com
Re: max feed rate?
« Reply #23 on: December 20, 2006, 02:47:24 PM »
How fast is your machine. My mill did the exact thing. Jogged just fine, but when I stuck in code it went all wonky at 45khz. I turned down to 35khz and ran perfect. I then changed the PC to a 2.4ghz p4 with 512m ram with a Lava dual PCI port card and it runs perfect at 45khz. My mill (Full size knee mill bit bigger than a Bridgeport) Now does full rapids at 180ipm X and 150 Y and runs the roadrunner file pretty darned fast. Before the new computer/card the fastest rapids I could get were 120 ipm each axis.

My feeling is it is a computer problem, not interference.
Re: max feed rate?
« Reply #24 on: December 20, 2006, 08:55:15 PM »
hmm yeah that may make sense. right now I can only run at 25KHZ and the fastest rapids I can get at that is 75 ipm . I noticed though that if I switch screens in mach while my machine is doing a rapid. my motors make a similar sound for a split second while it is switching. The computor is pretty old. its a windows 98 dell that I inherited so that may be the problem. if I could run at 35 KHZ I think Id be fine but its a nogo with this setup for now.
anybody else agree with this theory.
Re: max feed rate?
« Reply #25 on: December 21, 2006, 07:57:51 AM »
Sounds like the computer is right on the edge of not running mach.. Keep it at 25KHz :)
Fixing problems one post at a time ;)

www.newfangledsolutions.com
www.machsupport.com
Re: max feed rate?
« Reply #26 on: December 21, 2006, 05:20:57 PM »
Yep. Get a faster computer.

Heck, I have seen P4s at goodwill!

Or Frys has some pretty good deals on no frills computers.