I did try a few iterations of the program to find a good method and not waste a bunch of time.one of which was using the G5.1 high speed option. If I only had something fun to play with! For the last aluminum job, this meant to go to a 1.250" axial x 0.320" radial doc, 4,800 rpm and 240"/min, resulted in about 88% spindle load.only about 8 minutes of roughing to get it done. The Toyoda has big box ways (read lots of stick-slip), slow spindle (Cat50-6k), slow max feed, so I program the tool path to use the 30 HP (30 minute rating) and get the job done.
The best way to "solve" this is to reprogram your tool path to use the machine's advantages. Our Toyoda has this problem too when roughing aluminum, it really doesn't like >240 in/min (on a 393 in/min max feed rate machine) unless making nice, straight X or Y moves, well, haven't really tried a combo move, but when trying to swing a bunch of arcs around, it gets jerky also. Most likely the control and machine are not really wanting to do this at higher feed rates, but will move smoothly at slower rates just fine. The control/machine has to take each commanded move and break it into an acceleration, feed at rate, and deceleration for each line of code. Fastolds, I think it has to do with the many, many, short moves the CAM spits out.like short linear moves to actullly swing an arc, but this can happen even with arcs too.
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