LumcoMFG

I have run a few parts from a few different manufacturers' nylon filaments on both an Ultimaker S5 and an older Fusion3 F410. Where I have had a few issues with warpage, the primary (and most expensive) issue I have been having is actually from too much bed adhesion. I have shattered two beds for the Fusion, and pulled chips out of the glass in the Ultimaker about 3 times. The most recent, I left most settings at default for the Ultimaker nylon with the AA 0.4 core, only increasing the number of walls to 4, infill to 75% and type to gyroid (the part in question is actually a structural component, so I want near-solid without ending up with over-extrusion problems). A single layer of PVA glue stick on the bed. Part printed great, no warpage, but when I removed the part from the bed the next day (was not held on very tight, putty knife had no issues lifting it) There was a loose glass chip sitting off to one side and I had to try to scrape more of it off of the bottom of the part. Once there is a chip that can end up under the part, it ends up being progressive, with any extrusion that happens over it taking a little bit more glass with it on removal. What am I missing that could keep me from needing to replace a bed every few nylon prints? Thank You,

Just to update any lurkers here, I have been back and forth with Ultimaker support directly on this issue and have been able to rule out play in the X axles. I have also been able to isolate the issue to Extruder 1 with any material or core inserted. For now I am just running extruder 2 for the main material and 1 for support or secondary material, but I will still need to watch to make sure it doesn't end up needing to change that filament mid-print at this point.

I am running into a lot of trouble trying to get the S5 to load NinjaTek Cheetah TPU through the material station. The feeding unit grabs the filament in the bay, and is able to make it feed through the tube to the printer extruder drive unit. When it reaches the drive unit, however, it seems the extruder is not 'seeing' the material, as it sits idle until the lower drive triggers the flow sensor and forces the upper extruder to move. Once the upper unit starts to move, the filament feeds to around halfway through that section of Bowden tube to the nozzle and stops. Manually sliding the flow sensor unit forces more material to come through, but I still end up with ER56. Upon the necessary reboot to exit ER56, I have to release the upper extruder drive before the unit tries to unload the material, as it does not activate that drive to back the material out and will cause another error if the drive is still engaged. Does anyone have any idea how I can make this material feed properly? I am wanting to print a TPU 'shell' on some surfaces of a composite print to prevent an scratching that may occur or cushion a structural part. Ultimaker S5 Pro Bundle on Firmware 6.5.2 Parts are programmed in Cura 4.11 using the generic TPU profile for a 0.4mm AA nozzle in extruder 2 and a 0.6mm CC for the composite. Thank You

I am currently having a similar issue with the material station. When the material station runs out of one spool and has to change to another, I am getting almost 1/8" shift in the print. The first time it was only a few layers from the bottom, so I was able to do some trimming and make the part function, but the second time it was halfway through a 10hr print, so I don't really have that option. Any idea what could be causing this?