Some Gcode generating programs

[Jonathan]

Well here's something that's not in the Mach3 wizards...indeed someone charges for a very similar program.

4 axis Gcode generator for XL timing pulleys. Mills the trapezoidal tooth profile using small endmill. A axis is used to rotate pulley allowing the 25 degree angles to be milled for the precise tool profile. Needs 1.3mm or less endmill for XL...I've got a 1mm.

PULLEY GCODE.zip

Consider this an alpha release. I see no reason for it not to work, the gcode looks fine in mach 3 (be sure to set the A rotations display and the A offset to the radius of your pulley) however I have not tried it on my milling machine yet! Again, no error checking yet!!

I've coded it so that all the dimensions are calculated from the few dimensions that define the trapezium (lots of trigonometry & scribbling)- so I can easily add other pulleys such as metric T series aswell as L, MXL etc...if anyone's interested.

(I know a form tool would be a quiker way of making these, but that's difficult to grind.)