Cnc Cutting 1/4" Baltic Birch - What Bit to use ?

[Robert Bonenfant]

Thanks for the tips guys.

Mark Just bought Gwizard still playing with the settings but its giving good estimates so far.

Garys suggestion worked great - We went with a Amana 1/4" Mortise Compression bit (46350) and they work well. We have probably went through about 30 of them in the past year, they leave a clean edge and they dont affect the plywood finish.

[Mark Canada]

Thanks for the tips guys.

Mark Just bought Gwizard still playing with the settings but its giving good estimates so far.

Garys suggestion worked great - We went with a Amana 1/4" Mortise Compression bit (46350) and they work well. We have probably went through about 30 of them in the past year, they leave a clean edge and they dont affect the plywood finish.

Oops, didn't realise this was a resurrected thread until you mentioned "past year".

Try one from Onsrud, Kyocera, CMT, or pretty much anyone else. I've found Amana's carbide to be pretty much identical to Freuds, easily chipped, gets blunt easy, sub-par in general. I *love* their tapered carving bits - but their endmills suck. Running a Kyocera bit through walnut - dead quiet cut, lasts me 2+ weeks - change to Amana of same OAL, DOC, Width - high pitch scream through the whole cut. After the first toolpath finished I have 2-3 small nics or chips on the leading edge of the flutes. I went through about 10 and now won't buy anything but their tapered carving bits.

Running in brass, the kyocera/onsrud bits ran through dozens of pieces. Amana's bit chipped (more like tore apart) on the leading edges and had brass welded to it in under 20 seconds - same toolpath, same brass, same conditions. That was the fancy rainbow Spectra coated ones too that cost 3x as much as a AlTiN kyocera bit!