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| author | Kevin O'Connor <kevin@koconnor.net> | 2018-09-11 13:23:20 -0400 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2018-09-11 13:40:52 -0400 |
| commit | 4573932f89d4bc0f0c0fea5ee40f7a2d4d3ed757 (patch) | |
| tree | e240066f0defbbe987b08f7a44972b50f54bb574 | |
| parent | 947a7b2b0f1983df66dec6ef78ad1122e64263e3 (diff) | |
| download | kutter-4573932f89d4bc0f0c0fea5ee40f7a2d4d3ed757.tar.gz kutter-4573932f89d4bc0f0c0fea5ee40f7a2d4d3ed757.tar.xz kutter-4573932f89d4bc0f0c0fea5ee40f7a2d4d3ed757.zip | |
toolhead: Handle rounding errors with extrude only moves
It's possible that a g-code transform class may make an extrude only
move appear as a kinematic move due to limitations of double precision
math. Handle this by checking for an inconsequential move distance
instead of checking for a move distance of exactly zero.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
| -rw-r--r-- | klippy/toolhead.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/klippy/toolhead.py b/klippy/toolhead.py index d94eddad..963d8052 100644 --- a/klippy/toolhead.py +++ b/klippy/toolhead.py @@ -21,8 +21,11 @@ class Move: self.is_kinematic_move = True self.axes_d = axes_d = [end_pos[i] - start_pos[i] for i in (0, 1, 2, 3)] self.move_d = move_d = math.sqrt(sum([d*d for d in axes_d[:3]])) - if not move_d: + if move_d < .000000001: # Extrude only move + self.end_pos = (start_pos[0], start_pos[1], start_pos[2], + end_pos[3]) + axes_d[0] = axes_d[1] = axes_d[2] = 0. self.move_d = move_d = abs(axes_d[3]) self.is_kinematic_move = False self.min_move_t = move_d / speed |