Issue with break through when contour milling

Mostly Printed CNC - MPCNC Troubleshooting
1

Hi, I like to mill out some contour shapes
and my milling program successively dives into the wood with every revolution.
However, when the mill breaks through, it appears to suck into the depth(towards floor) far too deep.
Subsequent X Y moves wont work out anymore due to the high resistance then.

I did not use the recommended mill bit which is

  • Single flute ⅛″ [upcut bit]

Could that be the reason for the effect seen ?

The Mill offered at V1 engineering is quite cheap but i don’t like to afford shipping which is almost 40 USD.

Unfortunately i am not able to find such bit in European area as i simply don’t know how this translates to German.

can anybody show me a valid link on ebay, amazon or the correct german name ?

Thank you

2

Some info might be helpful in someone on the forum spotting the problem.

  • Thickness of material?
  • Type of material?
  • Depth of cut?
  • RPM?
  • Cut rate in mm/s?

My guess is that you have too high a depth of cut, but that is only a guess. If your depth of cut is reasonable, and your machine really dives when it breaks through, I suggest you check for any looseness in the Z axis.

2 Likes
3

sorotec.de has got you covered.

4

As Philipp said, Sorotec is a great source.

Einschneider–3-175 is what your looking for I believe