[BillPackman]

Hello all, long term reader - first time poster.

I can set up 2 cuts in vcarve pro:

a) an outside profile cut of a 50mmx50mm square to 8mm deep
b) a pocket cut of a 50x50mm at 8mm deep

The outside cut cuts perfectly in X and Y directions. The pocket cut is out (too small) by 0.5mm in both X and Y directions

I've tried different tools, different materials. I though it might be an error on my callipers so have bought another set and still every pocket toolpath I cut is out by the same amount. I thought it might be slop in the rack and pinions but pretty sure I've eliminated that. I suspected a spindle bearing error but why error is only on pocket cuts? Tried climb/conventional. nothing.

I am completely baffled. What am I missing?

The code is

Code:
T1M6
G17
G0Z24.010
G0X0.000Y0.000S10000M3
G0X133.286Y50.285Z24.000
G1Z19.000F6000.0
G1X135.286Z18.200
G1Y52.285Z17.400
G1X133.286Z16.600
G1Y50.285Z15.800
G1X135.286Z15.000
G1X133.286Z14.200
G1Y52.285Z13.400
G1X135.286Z12.600
G1Y50.285Z11.800
G1X133.286Z11.000
G1X135.286F8000.0
Y52.285
X133.286
Y50.285
G1X130.286Y47.285
G1X138.286
Y55.285
X130.286
Y47.285
G1X127.286Y44.285
G1X141.286
Y58.285
X127.286
Y44.285
G1X124.286Y41.285
G1X144.286
Y61.285
X124.286
Y41.285
G1X121.286Y38.285
G1X147.286
Y64.285
X121.286
Y38.285
G1X118.286Y35.285
G1X150.286
Y67.285
X118.286
Y35.285
G1X115.286Y32.285
G1X153.286
Y70.285
X115.286
Y32.285
G1X112.286Y29.285
G1X156.286
Y73.285
X112.286
Y29.285
G0Z24.000
G0Z24.010
G0X0.000Y0.000
M30

[DanielRissanen]

This might be silly but I just want to cover all our bases. In your pocket toolpath settings you should see a small box with the option to add "Pocket Allowance". There will be a box where you can enter a value. If your pocket vector is drawn to exactly 50mmx50mm then this value should be 0.0mm.