UPDATE:
After adjusting the thermistor tables as NoobMan suggested (thanks again), I was able to toy with it and get the hotend reading correctly on pronterface. To avoid screwing up the calibration of the heatbed, I made a copy of the table #1, renamed it, and assigned the hotend to it.
As far as extruding PLA, I have also got that working. There have been a few stupid assembly errors in terms of the extruder binding up (bought it used), but have managed to get the printer going decent.
However, the lowest successful temperature/speed has been (240 C, 30 mm/min) which still seems high. I can get a nice looking stream of PLA, without curling at the tip, at around (250 C, 30 mm/min).
No fan on the hot end or extruder area as of now, the only fan on the printer is one mounted for the board... However, the manufacturers website for the hotend says
[attachment 37107 11.JPG]
[attachment 37108 12.JPG]
I guess I am confused as to why a fan is recommended at one of the lower temperature applications, but not the higher temp ones?
After adjusting the thermistor tables as NoobMan suggested (thanks again), I was able to toy with it and get the hotend reading correctly on pronterface. To avoid screwing up the calibration of the heatbed, I made a copy of the table #1, renamed it, and assigned the hotend to it.
As far as extruding PLA, I have also got that working. There have been a few stupid assembly errors in terms of the extruder binding up (bought it used), but have managed to get the printer going decent.
However, the lowest successful temperature/speed has been (240 C, 30 mm/min) which still seems high. I can get a nice looking stream of PLA, without curling at the tip, at around (250 C, 30 mm/min).
Quote
3Dmaker4U
What about the fan? I can't see any in the picture. If you have a general one that blows over the heatcore, that's not actually a good setup.
Did you check that the set screw holding the stainless steel barrel is tight? Eventually, unscrew it, take the barrel out and check if the surfaces are clean and there is nothing impeding the thermal transfer. Make sure both surfaces are clean and smooth.
No fan on the hot end or extruder area as of now, the only fan on the printer is one mounted for the board... However, the manufacturers website for the hotend says
[attachment 37107 11.JPG]
[attachment 37108 12.JPG]
I guess I am confused as to why a fan is recommended at one of the lower temperature applications, but not the higher temp ones?