LR4 / Jackpot / FluidNC Z Depth Increasing and Cutting Too Deep

Darn good point!

This could be a pure CAM issue.

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It puts the center of the mill at the start and end of the cut have to try a 60 degree v bit or ppcket a small 7 mm pocket 50 mm long box shape

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I will try this and report back!

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You where correct. using a v-bit my x and y are correct 10mm=10mm, 100mm = 100mm ect. I failed to take into account the bit width. Thanks for that insight!

Now I am trying to figure out the z axis issue.

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Today I removed the grub connectors and Z rods, gave everything a good cleaning, and lightly re-greased the rods. I also made sure everything was lined up, connected properly, and tightly screwed down.

I’m now running test pockets on the Z axis to see whether the number of passes used for a pocket could be contributing to the increased depth issue.

I’ll be pocketing four 0.5-inch holes while decreasing the number of passes: 12, 10, 8, and 6. This should help determine whether the depth changes based on the pass count.

This test didn’t help it still pocketed deeper that what was on gcode.

I did notice the core was flexing when the z axis made contact with the work piece. Anyone have thoughts on this?

I’m using 1od emt or 29.50mm od

The core seems to have play on rails wich is causing this flex.