Bug? Strange GCode output in Aluminum from Easel

Easel
1
  1. Set your material to MDF.
  2. Set the MDF to cut at 0.1mm depth per pass
  3. Set the MDF to be 1.0mm thick
  4. Add a 5mm x 5mm square with the bottom left corner at 5mm and 5mm (XY).
  5. Under Machine menu, go Advanced and export the GCode.

You’ll see ten passes to cut the item out.

Repeat all steps above but use Aluminum instead.

This time you’ll get 14 passes and some weird step down values.

This would explain why my job the other day took so very long and didn’t seem to be cutting as much as I hoped in 3mm aluminium (took hours).

Is this a bug? Or some sort of fancy tool pathing feature?

Doing the same in 0.1mm thick MDF and aluminium GCode is below.

MDF:

G21
G90
G1 Z3.810 F228.6
M3 S18000
G1 Z3.810 F228.6
G0 X10.000 Y10.000
G1 Z-0.100 F228.6
G1 X10.000 Y10.000 F800.0
G1 X5.000 Y10.000 F800.0
G1 X5.000 Y5.000 F800.0
G1 X10.000 Y5.000 F800.0
G1 X10.000 Y10.000 F800.0
G1 Z3.810 F228.6
M5
G0 X0.000 Y0.000

And same everything except selected aluminium:

G21
G90
G1 Z3.810 F228.6
M3 S18000
G1 Z3.810 F228.6
G0 X10.000 Y10.000
G1 Z-0.076 F228.6
G1 X10.000 Y10.000 F800.0
G1 X5.000 Y10.000 F800.0
G1 X5.000 Y5.000 F800.0
G1 X10.000 Y5.000 F800.0
G1 X10.000 Y10.000 F800.0
G1 X10.000 Y10.000 F800.0
G1 Z-0.100 F228.6
G1 X10.000 Y10.000 F800.0
G1 X5.000 Y10.000 F800.0
G1 X5.000 Y5.000 F800.0
G1 X10.000 Y5.000 F800.0
G1 X10.000 Y10.000 F800.0
G1 Z3.810 F228.6
M5
G0 X0.000 Y0.000

Cheers

Ian

2

My guess is that the depth-per-pass is displaying (rounding to) 0.1mm but is actually set to 0.076mm as you see in the gcode. The default value for aluminum is 0.003in which is 0.0762mm. You can type “0.10 mm” into the box to force it to change.

1 Like
3

Confirmed Jim, thank you.

If I enter 0.10mm it does indeed do what I would expect.

Cheers

Ian