@@ -9,34 +9,31 @@ lineardeltakins \- Kinematics for a linear delta robot
99
1010.SH KINEMATICS
1111The kinematics model is appropriate for a rostock/kossel-style design
12- with three joints arranged in an equilateral triangle. (0,0) is always
13- the center of the working volume. Joint 0 is at (0,R) and subsequent
14- joints are 120 degrees clockwise (note that joint 0 is not at zero
15- radians). The length of the arm is L.
12+ with three joints arranged in an equilateral triangle.
13+ (0,0) is always the center of the working volume.
14+ Joint 0 is at (0,R) and subsequent joints are 120 degrees clockwise (note that joint 0 is not at zero radians).
15+ The length of the arm is L.
1616
17- Joints 0-2 are the linear carriages. Axes ABC and UVW are passed
18- through unchanged in joints 3-8, so that e.g., A can still be used to
19- control an extruder.
17+ Joints 0-2 are the linear carriages.
18+ Axes ABC and UVW are passed through unchanged in joints 3-8, so that e.g., A can still be used to control an extruder.
2019
2120.SH PINS
2221.TP
2322.B lineardeltakins.R\fR float in
2423Effective diameter of the platform.
2524
26- R is different than the distance from the center of the table to the
27- center of the belt/smooth rod/extrusion that the joints ride on. In
28- RepRap delta parlance, R is DELTA_RADIUS which is computed as
25+ R is different than the distance from the center of the table to the center of the belt/smooth rod/extrusion that the joints ride on.
26+ In RepRap delta parlance, R is DELTA_RADIUS which is computed as
2927
3028DELTA_SMOOTH_ROD_OFFSET - DELTA_EFFECTOR_OFFSET - DELTA_CARRIAGE_OFFSET.
3129
3230.TP
3331.B lineardeltakins.L\fR float in
34- Length of the rod connecting the carriage to the effector. In RepRap
35- delta parlance, L is DELTA_DIAGONAL_ROD
32+ Length of the rod connecting the carriage to the effector.
33+ In RepRap delta parlance, L is DELTA_DIAGONAL_ROD.
3634
3735.SH NOTES
38- The R and L values can be adjusted while LinuxCNC is running. However,
39- doing so while in coordinated mode will lead to a step change in joint
40- position, which generally will trigger a following error if in joint
41- mode with machine on.
36+ The R and L values can be adjusted while LinuxCNC is running.
37+ However, doing so while in coordinated mode will lead to a step change in joint position,
38+ which generally will trigger a following error if in joint mode with machine on.
4239
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