geektech

Wow, how could we miss that? Thank you very much!!! Calibrating the switch fixed the problem. Sadly, we now have the next problem. The pre-installed AA print core no longer extrudes. After not even 10g of print. We tried to push an accupuncture needle in, no dice. There seems to be solid PLA, which strangely doesn not get heated? Removed the core, and tried to insert the second AA core, which was still full of black PLA (from the test print I guess?). Same issue. Black PLA extruded for about five seconds, now nothing comes out of it. It feels like the nozzle is not heating up enough. Currently using stock PLA settings with 200 degree, will try hotter. Is there an option to heat the nozzles and move the material manually, like with the UM2? We couldn't find it yet :/ best regards Ulrik

Hello UM community, today we received our UM3. Sadly, our ride isn't as smooth as it was/still is with our UM2. Apart from one axis not beeing assembled right (not clipped into the holders...no big thing, but QA should look out for that), we cannot use auto levelling or the second print core. We setup the UM3 through the wizard, connected to our WiFi and updated firmware. Everything went perfect. Then we sent the first printjob, and the UM3 started auto levelling. Failed => Same height detected for both print cores. Check levelling switch. So we tried again, same. So we checked what was actually happening, and found out that the UM3 does not "hit" the thing that pulls/pushes the lever. It misses it by about 5mm every time, this the lever always stays in the same position. We did a factory reset, to no avail. Same problem. When we manually level the bed, manually raise the second printhead (since the printer can't lower it itself anyways), printing is fine, very fine actually. When we manually switch the lever during auto levelling (manually raise the second print head after the first calibration round), printing also works like a charm (have to make sure the head is raised of course, so the printer wont ram it into the glass bed). But no dice bringing the printer to correctly hit the lever-switch-thingy on the right axle. What options do we have apart from sending it back (a shame)? Of course we could print our own lever-switch-thingy, but that of course would only be an option if we are out of warranty, which we are the exact opposite of. Would XY recalibration help? Any help is greatly appreciated. best regards Ulrik

Hello UM community, today we received our UM3. Sadly, our ride isn't as smooth as it was/still is with our UM2. Apart from one axis not beeing assembled right (not clipped into the holders...no big thing, but QA should look out for that), we cannot use auto levelling or the second print core. We setup the UM3 through the wizard, connected to our WiFi and updated firmware. Everything went perfect. Then we sent the first printjob, and the UM3 started auto levelling. Failed => Same height detected for both print cores. Check levelling switch. So we tried again, same. So we checked what was actually happening, and found out that the UM3 does not "hit" the thing that pulls/pushes the lever. It misses it by about 5mm every time, this the lever always stays in the same position. We did a factory reset, to no avail. Same problem. When we manually level the bed, manually raise the second printhead (since the printer can't lower it itself anyways), printing is fine, very fine actually. When we manually switch the lever during auto levelling (manually raise the second print head after the first calibration round), printing also works like a charm (have to make sure the head is raised of course, so the printer wont ram it into the glass bed). But no dice bringing the printer to correctly hit the lever-switch-thingy on the right axle. What options do we have apart from sending it back (a shame)? Of course we could print our own lever-switch-thingy, but that of course would only be an option if we are out of warranty, which we are the exact opposite of. Would XY recalibration help? Any help is greatly appreciated. best regards Ulrik