@joeldbutler wrote:
I'm having an issue with circular pockets not cutting to the correct diameter.
I'm making tasting flight boards out of timber with 5 recessed 62.5mm diameter pockets at 2.5mm deep.
All the other cuts seem to come out accurate: slot, profile cut, but the circular pockets are coming out with a diameter of about 58mm instead of 62.5mm.
I'm using a 3.17mm flat endmill, and that's selected as the tool.
When I go into the sketch or inspect, and double check the measurements, the circular path has the correct 62.5mm diameter.
Anyone know what I'm doing wrong?
When you say it's coming out about 58mm is that the cut size or the size you see in the G code.
Here's a screen grab of a back plot of one of you pockets.
It shows a radius of 29.613 so 29.613 x 2 + 3.17 = 62.396, you have a stock to leave of 0.05 per side so add that gives 62.496 so the code is pretty much correct!
Here's your stock to leave settings, you should set the smoothing to 0.01 to match your tolerance to get better arc fitting.
Also, I've noticed in the tool settings the "tool diameter offset" is set to "1"
What does that mean?
Your machine should have a tool library where you set the tool length offsets and diameters so in the g code T1 will load tool number 1 length and diameter offsets,
Mark.
Mark Hughes
Owner, Hughes Tooling
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