Rotary Delta Kins Settings

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6 years 8 months ago #157033 by slckzbn
I have a 3-axis rotary delta robot, my servos are running smoothly in trivkins, but when converting these settings to rotarydeltakins, I get the error "kinematicsInverse gave non-finite joint location on joint 0".
The .hal and .ini files are attached.

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6 years 8 months ago #157069 by bbsr_5a
Replied by bbsr_5a on topic Rotary Delta Kins Settings
did you try setting the offsets in a Postgui file so the interpreter gets set up first
setp rotarydeltakins.platformradius 40.0
setp rotarydeltakins.thighlength 384.0
setp rotarydeltakins.shinlength 1091.0
setp rotarydeltakins.footradius 60.0

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6 years 8 months ago #157128 by slckzbn
Replied by slckzbn on topic Rotary Delta Kins Settings
Thanks, it worked. So my servo motors should not move more than + - 55 degrees How can I adjust it?

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6 years 8 months ago #157131 by bbsr_5a
Replied by bbsr_5a on topic Rotary Delta Kins Settings
there is a MAX
MIN
Limit in the INI for the Joints
the rest is up to the Postprocessor
You can try out Autodesk FeatherCam this makes pritty impressiv gcode on Rotarys

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6 years 8 months ago #157136 by slckzbn
Replied by slckzbn on topic Rotary Delta Kins Settings
I cannot adjust how long the motors can move with the max min in INI, I just set the boundaries as the coordinate.
My motors can damage themselves if they move more than + -55 degrees. how can i set this up?
If it can be done from the INI file, I do not know which feature is affecting under which title.
Thans for helping :)

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6 years 8 months ago #158577 by andypugh
Replied by andypugh on topic Rotary Delta Kins Settings
Assuming that you are using LinuxCNC v2.8+ then the joint limits in the INI should allow you to limit the angular joints.

Your setup is a good example of why you might need separate and different axis and joint limits.

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