Stepper Motor Setup
Showing the X axis stepper motor configuration prior to connecting the belts. Worth doing this so you can be sure that both motors are working together rather than pulling in opposite directions when you connect it up.
Also if you've installed all 3 of the jumpers under the drivers as I have in this setup, the DRV8825 stepper driver will operate at it's maximum of 1/32 micro stepping. Looking online there seems to be little reason to go to 1/16 as the whole speed / torque thing doesn't seem to be much of an issue.
Also, apologies for the orientation of the video. The phone didn't seem to record this in landscape for some reason.