I have some problems with under extrusion and that it stops extruding mid print. Very annoying. Now I’ve tried everything that I can think of and google. And sure, it’s better, but still not there. In the beginning of the fixing it was working for about 15-20% of the print, and now i’m up to 90% (annoying when I finally thought i solved the problem). Anyway, the same problem is recurring all the time, and i really can’t find the problem. All the parts are working fine separately, and nothing seems wrong.
It started when I printed a bad file which fucked up my printer and since then i dont manage to get it fixed.
The nozzle was clogged and the heatblock had burnt filament and the thermo coupler was broken.
I ordered a new nozzle, new thermo coupler, insulation for the heatblock and PTFE tube.
I got a PTFE tube that was too short (guider II seems to have a longer one than normal). And they said it was supposed to be ok anyway. It worked badly, so i ordered a new PTFE tube that i cut myself.
I have cleaned the nozzle, the drive gear and the heat block. (several times)
Changed insulation on the heat block
changed the thermo coupler.
changed the PTFE tube several times (once wrong size since they told me it was ok)
tried tightening the drive gear a bit
changed all the settings in simplify 3D according to their guide of under extrusion.
manage to print smaller files (for example a cube and a coaster i made), but not really nice results, looks like a bit of under extrusion even there.
the bigger files extrudes fine and sticks fine to the bed in the beginning. first it stopped extruding after about 10-30 min, now it was after around 3 hours.
Any ideas? I really have NO IDEA what’s wrong. Hope to be able to get some help here.
Is this a Guider or Guider II? Looks like you mentioned a Guider II.
No profile in S3D for the Guider II yet I don’t think.
First thing I would do is get Flashprint and see how that does. Also make sure that the firmware is up to date.
Took me a while to get a good working set up going in S3D.
What filament? PLA, ABS?
What print temps, speeds, retraction etc. need details.
Hey. Did you ever get it going? Foryour problem I would say its a faulty thermocoupple. Seemes you have a higher temp than it thinks. Therefor burning the filament and ptfe. Any boubbles or holes in the print?
Start with 200 degrees in nozzle, bed is irrelevant on the buildtak. 0,2 layer height, 0,45 extrusion width, 0,85 extrusion multiplier, full cooling and doors open. Speed around 40-50 mm/s. This should work perfect on any PLA. But it seems you have a faulty temp sensor.
@Solidified got it working. Seems like the files were bad and they fucked everything up. At this point (when i wrote here) i had already changed the thermocouple. After changing ptfe, nozzle, thermocouple, heatblock, and cleaning everything i got it working at 220 degrees with open “roof” and door. It doesnt seem to like files exported from fusion 360, but with some modification of the geometry it works fine
No problems without solution.
Thanks for the help!
That’s strange. I always use export function from. F360 to Simplify. Nice that you’ve got it going. I recently bought the Guider II myself. It’s a nice machine. Also got a Mosaic palette 2 for multi color/material prints.
