[airbrush]

Does anyone have speeds and feeds for doing wood on a router gantry type machine?

Is there a download from bobcad somewhere for wood groups to add to the stock material library? or would someone care to share theirs if they have one setup already?

thanks

[Jon.N.CNC]

4m/min @ 11,000 for hardwood is a good place to start if you have a rigid machine.

Or any division of, I.e 1m/min @2525rpm.

If it screams it's hungry, go faster or reduce Rpms, until it whistles, if it sounds clunky and rough, too slow.

With wood your ears alone are all you need.

[jrmach]

balls to the wall

[daniellyall]

that's sound advice, also if it's cutting dust you will burn the cutter, you won't chips slow rpm down or cut faster or vise versa. if you get it completely wrong you will a get fire very fast

[airbrush]

okay thanks.

is there some sort of basic reference chart available somewhere...surely someone must have made something like this already?

2 flute 1/8" bit at 10000rpm = xxx ipm
2 flute 1/4" bit at 10000rpm = xxx ipm

also step down/step over ... generally is everyone going at radius of the tool?

thanks

[ger21]

Look at a chip load chart from the tool manufacturer.
Not all 2 flute tools are created equal. Some are designed to take deeper cuts than others.

[ger21]

also step down/step over ... generally is everyone going at radius of the tool?

also step down/step over ... generally is everyone going at radius of the tool?

It depends on the machine rigidity, workholding, material, and spindle power.

For me, for 1/4" diameter and smaller, I tend to cut no more than the diameter per pass.

With 3/8 and larger diameters, I'll cut 3/4" per pass or more, depending on the material.

[airbrush]

For me i'm running a bosch colt 1hp trim router on an all aluminum machine.

1/4 collet, so won't be running anything ove 1/4 most likely, also have an 1/8 collet for smaller tools.

looking for some sort of general guideline to start with. Bobcad already has speeds and feeds for most metal types but nothing for wood...i'll primarily be working with wood.

[Jon.N.CNC]

For me i'm running a bosch colt 1hp trim router on an all aluminum machine.

1/4 collet, so won't be running anything ove 1/4 most likely, also have an 1/8 collet for smaller tools.

looking for some sort of general guideline to start with. Bobcad already has speeds and feeds for most metal types but nothing for wood...i'll primarily be working with wood.

3m/min @ 12000rpm with 1/4" at 3mm doc I'd suggest would be the best place to start given this info, you can if you like set the fro to say 65% until your making chips, will likely scream a bit, then just increase the fro by 10% each time & listen. if it's mdf your cutting just try to get that feedrate up before gumming the bit up. Always hit estop if you have to but at 60% of 3/min @12000 you will be screaming so you won't be breaking any bits or bearings. Get to 3m/min it may still scream so just keep adding fro until it whistles. Or reduce Rpms.

Follow this you will be fine, follow a manufacturers recommended chip load based on 5ton High speed machines you most likely will run into trouble.