Hi Sebastien
Looks great. If you are having arms disconnecting it may be that the delta rods are not exactly the same length. Check them. Another reason could be the bowden/cable loom is too tight and causing a twisting moment. Remove the hot end from the effector and check the motion again to test for this. Also check that the effector is flat. If it warped slightly during printing it has the same effect as the rods not being of equal length.
Andy
Looks great. If you are having arms disconnecting it may be that the delta rods are not exactly the same length. Check them. Another reason could be the bowden/cable loom is too tight and causing a twisting moment. Remove the hot end from the effector and check the motion again to test for this. Also check that the effector is flat. If it warped slightly during printing it has the same effect as the rods not being of equal length.
Andy