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Author Topic: computer upgrade problem  (Read 2390 times)

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computer upgrade problem
« on: August 09, 2007, 03:23:48 PM »
Hope someone can suggest where to look.  I have Taig mill converted to cnc and have ran it on Mach2, TCNC, and cncPro over time.  For various reasons I had to set it aside.  I need to get it running again and have a new computer for it.  A Dell P4 with 1 gig ram.  I installed the latest Mach3 R2.4.  I can't seem to get the mill to do anything.  I beleive that the ports and pins are set up correctly.  The steppers have holding torque when it is powered up but I can't get them to move at all. 

The drivertest results look good.  I don't have a breakout board and am using gecko drivers.  Is it possible the newer on board parallel port is causing these problems?

Any suggestions to try?



Re: computer upgrade problem
« Reply #1 on: August 09, 2007, 03:47:22 PM »
yes it could be the onboard port is not putting out 5V, a breakout would help if that is the case as most will provide a regulated 5V supply. Have you put a volt meter on the dir pins and made sure you are getting 5V out of the port?
Re: computer upgrade problem
« Reply #2 on: August 10, 2007, 07:05:08 PM »
Thanks for the help.  That seems to be the problem.  I had been thinking of adding spindle speed control so I used this as an excuse and got a bob with speed control.