CamBam / FreeCAD 2D/3D MOP question Please help

[phill05]

disregard my first idea as this was done in Vetric, in Cambam first create the semi circle then extrude upwards to the over length you require then follow the instruction to rotate the part.

(To create extrusions along other axis, the shape must first be extruded in Z, then rotate the extruded surface object to the required orientation.
The Extrude operation will first prompt for an Extrusion Height. This will be the Z height of the extruded surface. A positive height will extend toward the positive Z axis (ie toward the viewer when drawing is in the normal orientation with the XY plane parallel to the screen). A negative height will extend the surface along the negative Z axis (ie into the screen).

[dudz]

Ok. This is going to raise answers that probably are obvious that it is not the correct method to do this, but still I want to try.

I want to cut 2 slots (2mm wide and 30mm deep from 2 sides / length around 35mm) though the 6082 T6 billet. Using a single or 2 flute 2mm endmill, I know the DOC is going to have to be tiny maybe 0.25mm ?. I am using flood coolant.

I think 10mm is probably the max flute length for any 2mm dia endmill. Maybe I can find one somewhere that will stretch to 15mm, but I doubt it.

[Robin Hewitt]

What you need is called a rib cutter. The sides of the cut support the tool, only the very tip is fluted. It cuts the slot that puts a rib onto an injection moulded component.

[dudz]

What you need is called a rib cutter. The sides of the cut support the tool, only the very tip is fluted. It cuts the slot that puts a rib onto an injection moulded component.

Sounds interesting. I have searched but cannot find them available for purchase online in metric