Am I missing how to handle the bluntness of V-bits? V-bits don’t normally come to a point and manufacturers will specify the minimum diameter. I would love just to enter tip diameter when defining tools in a “set and forget” fasion. I suppose the flatness of the tip should also be able to help in calculating stepover?
Is it best to do a diameter compensation (G41 / G42) or to set the V to where the point should be? (which will not floor pockets correctly)
Tried to do some calculations on my V-bits.
90° bit has 0.1mm diameter, which I calculate to be 0.05mm short on Z
45° bit has 0.2mm diameter, which I calculate to be 0.24mm short on Z
30° bit has 0.2mm diameter, which I calculate to be 0.38mm short on Z
20° bit has 0.2mm diameter, which I calculate to be 0.66mm short on Z
How would you use the information of tip flatness (is there a better term?) to calculate step over.
0.1 mm tip on a 3 mm is ≈ 3% stepover?
0.2 mm tip on a 3 mm shaft is ≈ 6% ? (I guess rounding down is safer than rounding up)
What would you do? Zero the tool then set the offset to compensate for the missing font?
Zero the tool and use G41/G42 to compensate for the diameter?
Redo the drawing with an offset path?
Would love to hear how others tackle this.