Pocket operation off center

as can see in pick pocket is centered 20mm right round

once pocketed out it is approx. 3mm out one side and one end but the internal measurements are correct inside and out ,didn’t notice it on the bigger sign but once measured it.

that is out as well

marie file done with RC9

tray done with rc 10

tui serve tray.mage (21.9 KB)

MARIE 3.mage (52.2 KB)

Had to use the Lightburn Measure Tool, but the side distances appear to be the same in the drawing.

  1. We have a bug.
  2. The drawing was not 100% aligned with the material.
  3. The material shifted between operations.
  4. Tool deflection was not consistent on both sides of the material.

At what point(s) during the running of the job did you set your home reference?

I see a different tool is used for each toolpath, but they all appear to be 6mm endmills, did the origin get reset between each toolpath?

machine gets homed twice, before starting on every job

this is the tool change i have set up which happens between operations

the 60 solid are V bits

  1. material bigger than drawing
  2. def no timber screwed down
  3. yeah nah, if excess deflection on 1st pocket which is likely due to depth and roughing tool the finishing pocket pass of 1mm with a dif bit would of been noticeable they ran the same path with no over cut.
  4. also the final tool pass being a chamfer profile lined up with the pocket , and outside profile sweet as
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was just looking at things and seen that fetch config was no longer checked , could this cause issue as not communicating with board correctly,

after rechecking it came up with box saying things were not a match

ill run a test cut see what happens

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have done 3 test runs on same board with a v bit and its cutting same line every time ,

maybe when changing tool and re tightening collet, pressure of spanner may have moved axis just enough to put it off ,which when thinking about it direction of spanner when tightening is Y + and X-
axis are belt driven so there is that slack/ free play

put it down to user error/ abuse haha

If I ever suspect I moved an axis myself on the CNC mill or laser, I do a Home operation (I always 99.6% of the time use Absolute coordinates). I had to add limit switches to my mill so I had this repeatability.

Its possible that there was some lost motion when tightening/removing the tool, or otherwise.