DyzeXtruder GT MountThis lets you mount a DyzeXtruder GT in place of the EZStruder. The DyzeXtruder is nice because it has a locking release lever, so you don't have to hold the lever while you insert or remove filament. It also has dual pinch wheels (like the Bondtech) and is fully constrained for printing flexibles. Print two of these. One goes on top, one goes on bottom.
Yep, I'm in the same boat in trying to build the printer based on the existing documentation. It's pretty sparse. I've got a few resources, between ZT Automations and here. I hope that we get some more communication than we have currently.
The main issues I am seeing in those pictures are things you have already created separate threads for (blobs due to pausing/stuttering, bed leveling issues). Is there any other specific problem you had questions about?
There is no way to manually calibrate the endstops on the Kossel Pro. In theory, it should all be handled by the automatic calibration. However in practice this is not always the case. There are some lengthy posts over on the Kossel Pro forums about this issue. I will do my best to give an overview of the solutions here.Disable the probe and switch to MatterControl's software leveling. This will have you manually measure the height of the bed at various points using paper as a feeler gauge.Use shims to ensure the correct distance between the arm joints. The basic problem is that, due to the geometry of the delta system, if the arms are not perfectly parallel with each other it will cause the end effector to to tilt slightly as it moves from one place to another. This tilting means that the probe can move slightly up or down relative to the nozzle, which throws off the measurements it is taking. To take care of this problem, ZT Automations is now selling a set of shims you can use to ensure that the arm joints are evenly spaced. Upgrade to a better probing system, like Force Sensing Resistors (FSRs). These are much more accurate since they detect the nozzle itself pressing against the bed, instead of a seperate probe. Ultimachine sells a $40 FSR kit with all the electronics you need. You will also need to print some new bed mounts and remove the probe offset in the firmware configuration.
We do have some replacement PSUs on hand (with the correct fans). These are not listed on the site, but if you want to purchase one give us a call or send us an email. We do not have the new K-Heads, though. We are still waiting to get these from OpenBeam.