Is a 5DOF robotic arm suitable for this program?

[Gp2japeng]

First of all, thank you for your excellent work! Can I ask if the 5dof robotic arm can be calibrated using your calibration method (I know you have stated in the readme that this code is used for the 4dof, forgive me for being a rookie) because I am getting poor results using the hand-eye calibration functions in OpenCV. Or can you give me some advice about the eye to hand（calib camera to base) calibration code (github or elsewhere) for a 5dof robotic arm? I tried to run the code with my data and I've made sure the data is formatted correctly, the first problem I encountered was"Error! Screw axes are anti-parallel. Matrix rank is being reduced."regardless of whether I chose False or True. so I just commented out #assert a _vec_r.dot(b_vec_r) > 0, "Error! Screw axes are anti-parallel. Matrix rank is being reduced.". Then I encountered AssertionError: Singular value 5 was 1.2453860339702136 > the limit 0.6. I adjusted the limit to 1.3, and got "Couldn't find a solution." I'm not sure if the problem is with the data acquisition, or with your code. I'm not sure if the problem is with the data acquisition or your code that doesn't work for 5dof. Thank you again.