I have been searching for a while on how to calculate and angle in g-code.

e.g.

Stock - 50 diameter

I want to cut a a 45 degree angle


The mach3 wizards with cut a taper but the g-code overshoots the end. So if I put a x as 10 and z as 0 the the code will go to -9.5 (example), this is OK if it's an end angle but not if it's like the picture.

Questions:
I've seen a couple of wizards that ask for angle and then start z and end z. Isn't the z end redundant? e.g if i wanted a angle from x=0 z=0 @45 degrees to a stock diameter of 30mm then put in a z end of 500mm the angle using the z end would not be 45 degrees. I would have thought it would be either an angle or point to point and you get what angle comes out.

Anyway I would like the formulas for working this out myself - arc formulas would be nice as well.  

thanks

Rimmel,

Do an internet search "Right Triangle Formulas"
Similar for arc's

You'll definately find something that suites your math understanding.

RICH

If you are working in diameter mode then the code is simply move to start diameter and Z start e.g. X30. Z2., feed in 10mm G01 Z-10. F.1 then form a 10*45 deg chamfer X50. Z-20. this may be a big chamfer to cut in 1 go but that's the code to do it. so for 45 degree chamfer move twice the x for the z e.g. a z move of 2 will need and x move of 4.

G00 X30. Z2. G97 S1000 M3
G01 Z-10. F.1
X50. Z-20.
X52.
G00 Z2.
M30

For a 30 degree chamfer the x and z are the same e.g. x2. z-2. will create a 30 degree chamfer.