What you are seeing is the Visualization Windowwhich renders a preview of the code's Tool path that you are going to run. After you do so, it should look something like the image below. If you cannot find it, you can download it from here. For this first test run, you will need the test file, which is called ' 1sainsmart. In order to ensure that you are prepared for this process, please make sure that you have done the following. Intended for new users of CNC's in general, this guide will walk you through using it for the first time. Site:softsolder.Updated 3 months ago by George. The original and tweaked GRBL configuration settings as a GitHub Gist: With all those in place, the G54 coordinate system puts the XY origin dead in the middle of the platform and the Z origin a little bit below its upper travel limit. You could probably eke out another millimeter along each axis, but this is what I came up with. $130=299.000 $131=179.000 $132=44.000 set the XYZ travel limits relative to the Home switch trip points, which feed into the $20=1 Soft Limits. These are two orders of magnitude higher than the default acceleration, which accounts for the as-received sluggish acceleration. $120 $121 $122 = 3000 set the acceleration along the XYZ axes in mm/sec². I’ll have more to say about speed limits, stepper current, torque, and similar topics. Note the hard upper limit set by the maximum microcontroller interrupt rate of about 40 k/s: 1500 mm/min = 25 mm/s = (40×10³ step/s) / (1600 step/mm) $110 $111 $112 = 1100 set the maximum speed along the XYZ axes in mm/min. The Camtool V3.3 board hardwires the DRV8825 stepper controllers into 32 microstep mode, so: 1600 step/mm = (200 full step/rev) × (32 microstep/full step) / (4 mm/rev) This depends on the mechanics of the limit switches, but seems OK with the MBI-style switches I used:

$27=1.000 sets the Pull-off distance from all three Home positions, so the machine ends up at absolute XYZ = -1.000 mm relative to the switch trip points after homing.

$22=1 enables the Home cycle, after which you must start each session by homing the machine. $21=0 leaves Hard Limits off, because I didn’t see much point in switches on both ends of all the axes for this little bitty machine. $20=1 turns on Soft Limits, thereby producing an error when you (or the G-Code) tries to move beyond the machine’s limits, as defined by the $120 $121 $122 values relative to the Home switch positions. $3=5 reverses the X and Z motor rotation, so you can use the same type of cable on all three axes and have them move the way you’d expect. There’s no force worth mentioning on a diamond scribe when the motors stop, so there’s no reason to keep them energized, and the DRV8825 chips resume from the same microstep when re-enabled.

3018 pro cnc setup