Universal Joint in Delta Robot moves only one DOF, second DOF doesnt work
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Hello, i build a Delta Robot on Matlab Multibody and used universal joints for connecting the second arm from the upper arm to the end effector.
--> UpperArm- UniJoint-ARM- UniJoint-EndEffector
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/168112/image.jpeg)
Now the Movement is not correct, its just going up and down but wont go sideways. Has anyone done thies jet or can help me with the universal joints?
thankyou
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David Ding
il 18 Ott 2017
Hi Trutz,
I understand that you have a joint that seems to be missing DOF. My suggestion is to check the actuation of the joint in the Universal Joint block to make sure that each DOF has a torque input.
Thanks,
David
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