Cuts from fusion precise, but not accurate! Not compensating for tool diameter?

Software / Firmware Fusion360
1

I think I’m missing a setting somewhere in Fusion. Cuts seem to be always leaving 1.5mm of stock. I took a nice slow approach, 2 roughing passes and 2 finishing passes with large tabs on this piece.

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To test it wasn’t my machine, I cut the same DXF using ESTLcam to generate. The piece was cut right next to the previous, to minimise any belt issues etc.

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The cuts were much more accurate.

I’m very suspicious of the difference being half my tool diameter. So I put in -1.5mm stock to leave, and lo and behold the part came out 1.5mm undersized!

Any hints? I’d prefer to use Fusion as it gives me a bit more control, and I’m already modelling in Fusion.

2

Screen shot of your path settings might help narrow down the issue.

3

Interesting. I’m finding that fusion gets me the wrong dimensions as well. I’ve compensated with negative stock to leave, but haven’t really dug in just yet Berjaya I figured at least part of it was a crappy build on my part.

4

Whoops, I uploaded them but forgot to attach the link.

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