change configs from mm to inches

when i first setup my CNC, i thought it would be easier to use millimetres, though i am now realizing that as i am used to working in inches, being in the US, i would like to change to inches, but without running stepconf, as it will overwrite my custom additions. is there an easy way to change my machine to inches? or is it easier to just start over?

~Travis

You can edit the ini file, it is easy enough.

tommylight wrote: You can edit the ini file, it is easy enough.

Change this

to

See
linuxcnc.org/docs/devel/html/config/ini-...g.html#_traj_section

Hmm, easier than i thought... then i just have to find all the settings in metric (like software limits, and such).

Thanks.

~Travis

Yes, that is correct.

rodw wrote:

tommylight wrote: You can edit the ini file, it is easy enough.

Change this

Code:

LINEAR_UNITS = mm

to

Code:

LINEAR_UNITS = inch

See
linuxcnc.org/docs/devel/html/config/ini-...g.html#_traj_section

Would a g20 in the gcode do the same job .

under the AXIS, i have a SCALE of 320. i don't remember how i calculated this, so i don't know how to change it from mm to inch, or even if i need to... (been a while, and i didn't take notes as i set it up. sorry)

~Travis

found this information:
not sure how to calculate scale... though in after thought, i can just run step config, and save to a different file, and grab the values i need out of it.

~Travis

If you had 320 steps per mm, you would have 320 * 25.4 = 8128 steps per inch

wow, i feel a bit dumb now, not knowing it was that simple. thought there was far more complex math involved.

maybe i just over thinked the whole process.

Thanks!

~Travis