ChrisB151

Thanks for the reply, I will try to get better pictures. I do have to admit these are not the best ones! Been getting a little annoyed and just been binning the failed prints, these have been quite a few recently. I will print something a little larger to make it more obvious and will update a bit later on. Sorry for the slow reply I missed the update.

Hello Sorry for the rather generic title but I really couldn't think what else to put this under. I am having some issues printing with a UM2, and I am looking for ideas to get things going again, as I am really at a loss. So I have a UM2 that seems to under-extrude intermittently during a print, this very rarely happens on the first layer, but will pretty much occur on every other layer, no matter what size print. Bit of background to hopefully help: Material: PLA (never used anything but PLA) Materials: Seen with both ColorFabb (black and white) and Faberdashery (grey, new) Atomics: I have done a number of atomics, last time 5 in a row and the filament was coming out very cleanly Temps: Seen at all temps from 200 to 230, tried all the way between these at 5 increments Speed: Seen from 30mm/s upwards, I have not tried slower Layer height: Seen from 0.1mm upwards, I have not tried lower than 0.1mm Feeder: Is not grinding or jumping back I have very good first layer adhesion, and have adjusted the bed up and down in small increments, and the results are the same. Until I go too far and get a failed first layer. The printer has printed OK in the past, no setting have been changed on the printer. I have printed about 3 spools in total, all PLA. I have had good prints from the ColorFabb in the past, but now these will not print correctly either. I just purchased a spool of Faberdashery to see if it was material related but I get the same results with this too. I have even tried printing a model that printed OK previously using the same GCode and filament and this also fails. Its hard to get a good picture of but I have put one on to see if it helps anyone. I will get others as needed etc. I have printed the test print and this is OK from 3mm/s up to around 7mm/s then 8mm/s is a bit of a fail, 9mm/s and 10mm/s are OK ish. All and any ideas appreciated.