Machsupport Forum

G-Code, CAD, and CAM => G-Code, CAD, and CAM discussions => Topic started by: benfly on January 04, 2011, 06:21:49 PM

Title: Millimeter, mm, inches problem
Post by: benfly on January 04, 2011, 06:21:49 PM

So, any one else have problems creating a millimeters profile?  I've tried several things in order to get Mach 3 to stay in mm once I restart it.  It always loses my settings.  The two places I've messed with are in the native units from the config menu, and the units in the settings tab.  Mach 3 seems to remember that I've set these two things (or just one) to millimeters, but when I exit and come back in my DRO reads in inches or even sub-inches.  Any ideas?  I've clicked 'save fixture settings' after I exit Mach 3 and I've clicked Save Settings in the config menu after I've edited anything, all to no avail.

I'm willing to switch to EMC 2, I actually have it all ready to go on my machine but I can't get it to communicate properly with my motors whereas Mach 3 picked it right up. anyone have experience with EMC 2?

Thanks in advance for any help.

benfly

Title: Re: Millimeter, mm, inches problem
Post by: ger21 on January 04, 2011, 06:46:01 PM

Native units are mm by default. You don't have to do anything to set it to mm.

Are you sure your step/unit are correct in motor tuning?

Do you have a G20 in your initialization string, or in your g-code?

Changing it on the settings page is only temporary. Whatever the native units are is the way Mach3 will start.
In the upper right, is there a G20 or G21 in the list of codes?

It should say G21 when you start Mach3. if it does, you're in mm's.