Hi all,
Im kinda new to CNC woodworking. Any suggestion for what bit to use and feedrate for cutting solid tassie oak timber, 25mm-35mm thick.
The machine is a Biesse Skill 1836.
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Hi all,
Im kinda new to CNC woodworking. Any suggestion for what bit to use and feedrate for cutting solid tassie oak timber, 25mm-35mm thick.
The machine is a Biesse Skill 1836.
Spindle rpm available?
Bit size?
Straight flute. Upcut, down cut?
Number of flutes?
Depth of cut?
Usually we run 24000rpm on most bits. Open to suggestions, as to the specific bit and pass. Need to cut through the 25-33mm thick solid tassie oak panels.Quote:
Originally Posted by pippin88
In general, whatever the diameter of the bit, I just halve it. So the depth of cut for a 12mm bit would be 6mm and the speed would tend to be about 6 metres a minute.
Just try it and see what works.
That’s a very open question.
Chip size is important for heat management.
bit diameter affects this
i would turn to manual for a start, and then go start looking at feed and speed calculators online.
Bit late, but I was running a 7.5hp Biesse Rover 24 (18k max rpm) for several years and my feed in solid timber with a 3-flute 12mm solid carbide spiral roughing bit was 4-6 m/min with a 3-4 m/min finish pass, so at 24k rpm you should be right with 6-8 m/min roughing and 4-6 m/min finishing. Using a roughing bit first will preserve the life of your finishing tool and require less cutting pressure; it's also better for dust extraction as it generates smaller chips.
Cut depth of half bit diameter is way too conservative on a machine like that, it can easily handle a depth of 2x diameter