I wrote a pocketing program to surface the tops of 2x4s that I have mounted to the cross members of my table, but something is wrong with it. The tool (1/2" endmill) does not machine all the way to the edge of the 2x4 on the X axis. It comes up about 0.74" short. I’m wondering if there an offset or setting that is causing this issue.
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Here is my program. Maybe there is something glaringly wrong with it that someone might be able to see… Thank you.
(VECTRIC POST REVISION)
(CF5A38FE52364C8CCD7F2AB294DB806B)
( First cut on 2x4-Pocket )
( File created: Sunday March 26 2023 - 10:59 AM)
( for Avid CNC Machines, post processor v3.0 )
( Material Size: X= 49.125, Y= 61.500, Z= 0.230)
( Z Origin for Material = Material Surface)
( XY Origin for Material = Bottom Left Corner)
( Min Program Extents: X= 0.000, Y= 0.000, Z= -0.230)
( Max Program Extents: X= 49.125, Y= 61.500, Z= 0.000)
( Home Position: X =X0.0000 Y =Y0.0000 Z =Z0.8000)
( Safe Z = Z0.2000)
()
(Toolpaths used in this file:)
(Pocket 1 [Clear 1])
(Tools used in this file: )
(1 = #46188-K SC COMPRESSION 2 FL 1/2" DIAx1-1/4x1/2" Shank Spektra)
G00 G94 G20 G17 G90 G40 G49 G80
G91.1
T1M6
M07
G00 G43Z0.8000H1
S18000M03
(Toolpath: Pocket 1 [Clear 1] Tool: #46188-K SC COMPRESSION 2 FL 1/2" DIAx1-1/4x1/2" Shank Spektra)
X0.0000Y0.0000F280.0
G00X0.6625Y58.9125Z0.2000
G1Z-0.0500F140.0
G1X48.5245F280.0
G1Y59.0875
G1X0.6625
G1Y58.9125
G1X0.4625Y58.7125
G1X48.7245
G1Y59.2875
G1X0.4625
G1Y58.7125
G1X0.2625Y58.5125
G1X48.9245
G1Y59.4875
G1X0.2625
G1Y58.5125
G00Z0.2000
G00X0.6625Y42.1125
G1Z-0.0500F140.0
G1X48.5245F280.0
G1Y42.2875
G1X0.6625
G1Y42.1125
G1X0.4625Y41.9125
G1X48.7245
G1Y42.4875
G1X0.4625
G1Y41.9125
G1X0.2625Y41.7125
G1X48.9245
G1Y42.6875
G1X0.2625
G1Y41.7125
G00Z0.2000
G00X0.6625Y30.8625
G1Z-0.0500F140.0
G1X48.5245F280.0
G1Y31.0375
G1X0.6625
G1Y30.8625
G1X0.4625Y30.6625
G1X48.7245
G1Y31.2375
G1X0.4625
G1Y30.6625
G1X0.2625Y30.4625
G1X48.9245
G1Y31.4375
G1X0.2625
G1Y30.4625
G00Z0.2000
G00X0.6625Y19.5375
G1Z-0.0500F140.0
G1X48.5245F280.0
G1Y19.7125
G1X0.6625
G1Y19.5375
G1X0.4625Y19.3375
G1X48.7245
G1Y19.9125
G1X0.4625
G1Y19.3375
G1X0.2625Y19.1375
G1X48.9245
G1Y20.1125
G1X0.2625
G1Y19.1375
G00Z0.2000
G00X0.6625Y6.6125
G1Z-0.0500F140.0
Do you have occasion to machine this far over in the X-axis in the past? Could your soft limits be set up a little short? Do you get a message in your history at the very bottom of your screen. If you click your history button, unless you’ve clear it, it will show a running tally of you status notes (errors, program exceeding your soft limits, etc.)
Also, quickly scanning your program on my phone, I didn’t see an x-axis position command beyond 48.92”. If your machine is a 48, then your machinable range should be around 49.30 with soft limits on. I don’t think your program is commanding the machine to go as far in the X as you intended. But I may have missed something.
Depending on where you’ve set up your flags for the proximity sensor, it may be homing too far to the left for the start position. Also, the span between the Y axis extrusion is more than 48" wide.
Show us a screen shot of your setup in Vectric’s software; the problem is there, not particularly the GCode itself.
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