New System, Different Units for Jog and GCode Program

Hey all, I just switched the electronics for my G0704 CNC machine from LinuxCNC with a ghetto old computer to a Raspberry Pi 3B+ with bCNC and GRBL. I've got everything all configured and was doing all my testing with jogging. Machine is set up for inch measurements. I loaded a simple test program and ran it and found that, while Z moves the correct units each time, X and Y are both only moving half the distance of that specified by the program. I am not using any micro stepping and my configuration also assumes no micro stepping. I changed the number of pulses per distance to twice the number, but when it rapids to the start point, it goes twice as far! So to boil it down:

- Jog and rapids move the correct distance
- G1 movements are only going half the distance

Here is a snippet of my header. I don't see anything here that should result in this. Any ideas?

Code:

---

G0 Z0.125
( T0 : 0.1875 )
T0 M6
( Profile1 )
G17
M3 S1000
G0 X-1.6843 Y0.2347
G0 Z0.0625
G1 F10.0 Z-0.125
G1 F12.0 X-1.3773
G3 X-1.2835 Y0.3285 I0.0 J0.0938
G1 X-1.2837 Y0.6717
G1 X1.258
G1 Y0.3285

---

Alright, so apparently there needs to be a factor of 2 in there somewhere, and my GRBL controller was also out of sync. I've got it all resolved now, but I still don't understand where my factor of two magically came from. Oh well, we're moving right along, nothing to see here.

Seems like you found the problem. But just in case you still have it you may have to calibrate GRBL to your machine. There is a few videos on how to do it.