Not a newb.. thousands of hours in

literally… i have about 2000 hours on my first machine. Built a second machine, much stiffer, tighter etc… rail size 600x900.

x-controller, all Inventables parts…

here’s the problem…

my work zero WILL NOT set to 0,0…

it homes perfectly to 0,0… every single time. but no matter what i have tried, it starts every cut at .5, 0.
so i was trying to skim the wasteboard, and it will not start cutting at 0,0. it jumps out to approximately .5" in the x position before it starts the cut, then travels the perfect distance, at least it crashes into the stops.

when the job finishes, it returns perfectly and repeatably to 0,0.

is there a safety buffer setting or something in GRBL??

Is this when using Easel only? (for design&sending)

Yes. Specifically, trying to skim the wasteboard with an easel polygon shape, 16x23.

Also, I the last few weeks I am getting a ton of “project out of date” popups, during cuts. Not sure wheat that’s all about

Can you share the Easel project or the gcode?

That might be a clock-issue… I have seen that too some time ago when I designed on one computer and carved from a different one, when computer #1 was still open with the project.

MHBx4 (233 Bytes)

i didn’t have an app to copy/paste text

Are you using a 3/4" (19mm) endmill?


The gcode looks ok.

You’re saying the square it’s making starts 0.5" to the right?
What are the final dimensions of the square?
How are you setting your work zero?

I have positive stops on x and y rails that I use to orient the machine before powering up the controller. So that sets my 0,0 point for each new carve. I use corner stops on the wasteboard to orient material on this particular machine.

As needed, I jog to the corner on any other workpiece, set x,y,z-zero there.

But in this case, I want my wasteboard skim route to be anchored at 0,0 as that’s where my machine zero is. The final size is 100% perfect, in every direction. The only issue is the offset to the right.

And 0,0 is not on the edge of the cut?

If you drop the endmill down while it’s at 0,0, the endmill is not over any of the cut?


At 0,0, (where the machine dutifully returns after a cut) the 19mm cutter doesn’t hover over any if the cut area…it is perfectly centered at 0,0 and the outermost corner of the cut area is at .5,0

Can you paste the results from sending $# to the controller?

  • [PRB:0.000,0.000,0.000:0]
  • [TLO:0.000]
  • [G92:0.000,0.000,0.000]
  • [G30:0.000,0.000,0.000]
  • [G28:0.000,0.000,0.000]
  • [G59:0.000,0.000,0.000]
  • [G58:0.000,0.000,0.000]
  • [G57:0.000,0.000,0.000]
  • [G56:0.000,0.000,0.000]
  • [G55:0.000,0.000,0.000]
  • [G54:0.000,0.000,0.000]
  • $#
  • ok
  • $132=100.000
  • $131=750.000
  • $130=750.000
  • $122=50.000
  • $121=500.000
  • $120=500.000
  • $112=500.000
  • $111=8000.000
  • $110=8000.000
  • $102=188.976
  • $101=40.000
  • $100=40.000
  • $32=0
  • $31=0
  • $30=1
  • $27=1.000
  • $26=250
  • $25=750.000
  • $24=25.000
  • $23=3
  • $22=0
  • $21=0
  • $20=0
  • $13=0
  • $12=0.002
  • $11=0.020
  • $10=115
  • $6=0
  • $5=0
  • $4=0
  • $3=6
  • $2=0
  • $1=255
  • $0=10

Are you sure you’re not having a mechanical issue?
Are you familiar with gcode? You could rewrite the square to have it start at the front left instead of the back right. I can help with that later.

I don’t know what the mechanical issue might be, as it is going home to 0,0. If there was a belt issue, or bind somewhere, it seems that it wouldn’t go back to its home position freely.

And not familiar with gcode, past the steps and values need for machine calibration and whatnot

This is the same square. It just starts front left.
MHBx4 (236 Bytes)

If you can get a video, that might help.

wil oblige after dinner