Thanks for the input. The current printcore has about 118hrs on it. Will be ordering a couple new ones to have on hand as I am working on approvals to purchase the S5. I havent looked at the side fans, but the one in front seems to be working properly. I will try printing at 225*C and see if that helps and also keep an eye on the fans. If not, Ill swap back to ABS until the new printcores come in.
What do you recommend for print speed?
Recommended Posts
gr5 2,294
Test the front fan in the door (NOT SIDE FANS) - stuff can get in there after years and ABS won't care but PLA or PETG will and will fail just as you say like 20 minutes into the print typically with the filament kind of stuck in the print core. Fan should start spinning around when printcore reaches if temp rising 40C and stay on until below 60C if temp falling.
Seriously consider using a new core that you havn't used much. The higher the temp, the faster the PTFE inside the core ages. Again - doesn't matter as much for ABS if the PTFE is getting soft but a problem for PLA and PETG. So maybe go into the maintenance menu and look how many printing hours you have on each printcore.
keep temps low. I use 220-230C for PETG (on both my S5 and my UM2go and my UM3). And use a little more fan to get good overhangs and good looking prints (ABS barely needs any fan at all - PETG needs about half the fan of PLA which doesn't mean necessarily at 50% as my UM3 fan at 50% is the same as at 100% - on my UM3 I do 9% fan for PETG but every printer is different).
Some filaments - particularly ABS - will clog if at too high a temp for too long. Normal printing temps like 240C for ABS left at 10 minutes (without printing - just sitting in the nozzle) will turn the ABS into a gum-like mess that is hard to get out of the core.
Link to post
Share on other sites