Fill in my knowledge gap :)

[needleworks]

Hi Dave,

Just knocked this together to help work it out.

You can use one of the 3 look up tables depending on if the chamfer tool is 90, 60, or 45 deg.

Then assuming you use a notional tool diameter of 4mm as suggested above by needleworks in the CAM tool definition, then you just need to look up the required chamfer distance you require (C) and read off the depth of cut required (P) and enter this value into the CAM software.

I've not tried this out but I think it is OK. Please check on a scrap piece first (!).

Any errors spotted by anyone let me know . . .

Yes, that explains it a lot clearer mate I should also have said that I use cambam for my toolpaths (not mach3 as I said in my previous post) like many, I just can`t get to grips with fusion 360 cause it always seems to mess up somewhere.