http://gearotic.com/ESW/FavIcons/index. ... attach=117Years ago I wrote a DOS program to calculate the dividing head settings and Y offset to simulate a HOB. I am stuck inside with a bad cold on a WONDERFUL fall day and spent the last 2 hours convertin g the old DOS program into a G code generatin g 4 axis CNC windows based program. The program uses a hand ground fly cutter shaped like a rack tooth or a rack formed milling cutter.
It starts by slicing the center of each tooth cut to the full depth then works it way up each side of each tooth by simulatin g the rolling involute action of a rack running against the gear. You will need to make or buy a rack tooth cutter for each pitch but it should mill any number of teeth. Please let me know what you think of this. It worked well with a manual dividing head years ago. Counting turns and holes really got interesti ng! The big advantage of this over the endmill 2.5D cutting is it can do very fine pitch gears.
Feel free to download the program below. And please let me know what you think!
( http://gearotic.com/ESW/FavIcons/index.php?topic=131.0 )
(w razie czego prześlę ZIP na e-mail)
