Topic: filament clogs up in extruder
filament clogs up in extruder because extruder gets too hot and filament gets too soft before reaching hotend. Anyone know a solution?
Re: filament clogs up in extruder
Do you have thumps (clicks) coming from extruder ? What is the temp you are using ? What is the temp the producer recomends for your filament ?
Fat kids are harder to kidnap!
Re: filament clogs up in extruder
You should have a cooling fan on the extruder above the hot-end to keep things from overheating in that area. the stock SD4 fans are only good for a few months, and once they seize up you'll get awful prints.
The other (small, cheap, low-lifetime) fans are also important, keeping the steppers from overheating, keeping the controller board cool, etc, so keep an eye on them all and make sure they don't stall.
I've got some http://www.newegg.com/Product/Product.a … 6835104004 on order (price drop on 5 is significant) on order, so I should know in a year or so how their lifetime is. 8*)
Re: filament clogs up in extruder
No clicks from extruder.
the stock fan on my SD2 seems to be fine. I just cant think of a way of cooling the area behind the acrylic where the filament meets the extruder gears (sorry I don't know the names for things)
Re: filament clogs up in extruder
Oh and also, the producer recommends Print Temperature: 175 - 200º C (http://www.robotshop.com/en/white-pla-1 … ifications) currently I'm setting my RH to 185. Maybe I'll try 175. At 185 it seems to leak a little on its own
Re: filament clogs up in extruder
Aaaa, you are printing in PLA. Sorry. I tought you print in ABS. As a general rule for me, I use the middle temp recomended.
Fat kids are harder to kidnap!
Re: filament clogs up in extruder
sorry, I really should have mentioned that. The only thing I can think of is to reduce the temperature. I can't image a fan would do much to cool the area behind the acrylic extruder assembly. I can also put on an mk5 assembly then use a directed fan to cool the filament since the mk5 is fairly open