Hey everyone, I am having a hard time getting Fusion tool paths to be smooth on my HDM. In some corners, and especially in helical tool paths. Any advice will be appreciated!
The movement is slow and jerky as if the controller can’t keep up with the movement data. It runs like it is reading the code slow.
Try Smooth ing the path. You may have a lot of really short segments and that slows it down.
Smooth will simplify the output gcode within a tolerance.
Use something like ncviewer.com to see what your machine is digesting.
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Also, just for reference, I almost never set my tolerance in Fusion smaller than 0.02mm. Setting the tolerance to a reasonable value + enabling smoothing are the best things you can do for your machine’s motion planner. Even on a “simple” 2D contour toolpaths, when you’re following a curve, smoothing can help. It’s not just an adaptive or helical gcode thing.
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Yeah fusion and tolerances can have odd behaviors.
See this post for a scenario where vastly increasing the tolerance provides a smoother motion:
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In Fusion the default value is 0.0004 inches. I set it to 0.001 for if there are no mating pieces.
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A good way to get an idea of how many data points are being generated is to use simulation and turn on points.
A mass of black dots indicates lots of data for the machine to handle.
Also, look at the size of the toolpath. And then compare it with Smoothing on.
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i’ll give it shot, just crazy enough to work.
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