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Author Topic: Newbie running Mach 3 Software needs help  (Read 2460 times)

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Newbie running Mach 3 Software needs help
« on: November 14, 2017, 12:37:43 AM »
Have built a CNC Router connected to a Desktop via Parallel port using mach 3 software running on Windows XP. Loaded Demo Gcode "Roadrunner" and everything works great, but the size of the routing is only 12mm x 12mm. What have I done wrong in the Setup.
 
Re: Newbie running Mach 3 Software needs help
« Reply #1 on: November 14, 2017, 02:36:47 AM »
Hi,
I'm guessing that your machine is interpreting the Gcode as mm units when the RoadRunner (being a Yankee!) is in inches.

Try on the MDI screen coding G20 <enter> and run the code again. G20/G21 are used to allow the Gcode interpreter to use either inches or mm's as units.

Craig
'I enjoy sex at 73.....I live at 71 so its not too far to walk.'
Re: Newbie running Mach 3 Software needs help
« Reply #2 on: November 14, 2017, 05:38:14 AM »
Thanks for the information, I will try this tomorrow morning