Someone asked about calculating a path for drag knife compensation, so I had a go at writing an OffsetForward method for my Curve class. See the code here.
Hi Dan I like Heekscnc. I would like to use your drag knife compensation. But i don´t know how to implement it into Heekscnc. Thank you for your support!
4 comments:
http://code.google.com/p/grecode/
I have made a tool that also does knive compensation for gcodes.
Thanks. Does it do arcs? Do you have a picture of some results of it working?
Hi Dan
I like Heekscnc. I would like to use your drag knife compensation. But i don´t know how to implement it into Heekscnc. Thank you for your support!
Hans,
In HeeksCNC/kurve_funcs.py, you could add this line:
offset_curve.OffsetForward(0.5, True)
here:
"
def profile(curve, direction = "on", radius = 1.0, offset_extra = 0.0, roll_radius = 2.0, roll_on = None, roll_off = None, rapid_down_to_height = None, clearance = None, start_depth = None, step_down = None, final_depth = None):
global tags
offset_curve = area.Curve(curve)
offset_curve.OffsetForward(0.5, True)
"
where 0.5 is the distance that the knife point is behind the spindle centre line.
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