[dazp1976]

Hello!

I see, you do not trust my ability to read Gcode...
It does a 0.3mm diameter helix.
Here is the code for the boring operation:

(BORE2)
G0 X0.075 Y7.675
Z15.
Z-1.3
G1 Z-3. F1206.
Y7.825
X0.069 Y7.854
X0.053 Y7.878
X0.029 Y7.894
X0. Y7.9
G3 Y7.6 Z-3.5 I0. J-0.15
Y7.9 Z-4. I0. J0.15
Y7.6 Z-4.5 I0. J-0.15
Y7.9 Z-5. I0. J0.15
Y7.6 Z-5.5 I0. J-0.15
Y7.9 Z-6. I0. J0.15
Y7.6 I0. J-0.15
Y7.9 I0. J0.15
G1 X-0.029 Y7.894
X-0.053 Y7.878
X-0.069 Y7.854
X-0.075 Y7.825
Y7.675

If using a 3mm cutter the code would give you a 3.6mm hole if runout is 0.
3.7mm if runout is 0.05mm.
The only way to get a 3mm hole from a 3mm cutter is a direct plunge.
Surprised fusion didn't tell you it's too large.

Use a 2.5mm with helix 0.25mm.
Still the issue around the edges though.

[mactec54]

If using a 3mm cutter the code would give you a 3.6mm hole if runout is 0.
3.7mm if runout is 0.05mm.
The only way to get a 3mm hole from a 3mm cutter is a direct plunge.
Surprised fusion didn't tell you it's too large.

Use a 2.5mm with helix 0.25mm.
Still the issue around the edges though.

With that program he should get close to his 3.3 diameter hole