When assembling the kit and modifying your Kossel Delta 3D Printer there are a couple of conisderations worth understanding to ensure you have success with the upgrade. The magnetic joint upgrade is designed to remove the 'slop' or free-play in your existing printer effector system. This is to ensure the delta-kinematics are accurate and your desired prints are finished to a high-quality, just as you expected when initially slicing your design.
The carbon fibre rods and CNC machined ends are designed to allow the user to adjust the length of the rods as accurately as possible by utilising the threaded steel ball. By adjusting the steel ball thread (winding in or out) the ultimate length of each rod can be matched. Super glue or a thread locker (thicker type) is used to hold the threads in place. It is crucial to understand that the rods need to be all matched in length in order to avoid disconnects in the magnetic joints.
The kit will allow for rod lengths of ~222mm to ~242mm pending how the threaded ball ends are secured and how the user sets the rods. An optimal rod length difference is ~0.1mm or less. This is achievable using vernier calipers or a jig setup https://www.thingiverse.com/thing:2355506
As well as ensuring the rods are all the same length, the magnetic joints need to be lubricated with a silicone grease. This will ensure the joints are not damaged and that they last for a significant length of time. The magnetic joints 'bed' in over time and the overall friction is reduced as this happens. This means that as you print more and more with the magnetic joint upgrade the prints will get better and better.
So if you are experiencing disconnects, please do try utilising this information to avoid these problems. And if you do not seem to be able to avoid these problems or you would like some advice or help, contact us and we will be more than happy to help you and give some guidance :)
