How do I change the steps per inch?

[PJTX]

Here’s a link to where I discuss it on another thread:

[Sovled] "Problem uploading to Board" error message

You’ll want the X-Loader to load a hex file onto your Arduino: http://xloader.russemotto.com/ And here’s the hex file, it’s labeled 500mm but it’s the correct one for any x-carve: grbl0_9i_X_Carve_500mm_ACME (1).hex