Results 1 to 5 of 5
Thread: Bukobot Duo failed extruders
-
07-26-2015, 12:36 PM #1
- Join Date
- Jul 2015
- Posts
- 3
Bukobot Duo failed extruders
I have had my bukobot since February. This is a 3.0 mm filament with a .35 nozzle. I have had very few good prints. After a while the extruder starts slipping and does not extrude. Thus print failure.
Both PLA and ABS usually starts off fine. I can manual feed from repieter host all day long. I have tried to print with the MicroSD card, and from USB.
I have spent hours and hours changing extruder temps, measuring and measuring again filament diameters. I have 3 or 4 filament manufactures product.
I purchased a MK8 on ebay with no luck. I have swapped out the stepper driver to the extruder, I have added a fan to the stepper driver, and changed the fan to the extruder to a more powerful one.
But after a while the filament starts to slip and not feed. I can watch the extruder gear dig into the filament.
The nozzle is not jammed. And the failure could be at layer 1 or 25 doesn't matter.
Does any one have any suggestions? I just want to print good parts.
bad_print.jpgLast edited by lockbot; 07-26-2015 at 06:10 PM. Reason: added image of brim
-
07-27-2015, 03:47 AM #2
Hi,
what are your various temp settings ? Have you checked that your hotend is not clogged ?
Just 1 question : on 1 axis, i can see the marks where extrusion stopped or clogged, but I can't see it on the perpendicular axis... Is it actually the case or is it just due to the photo crop ? That would be very interesting.
-
07-27-2015, 09:13 AM #3
- Join Date
- Jul 2015
- Posts
- 3
In the photo I used ABS, heat bed was at 110, and nozzle was at 135. The the printed brim was 190cm x 190cm with out other print defects.
When I noticed the defect I marked the filament and noticed it was not being fed. I am printing on glass and appears to be flat. But I will the glass rotate 90 degrees and print again.
The hot end is clean. I have checked and both pla and abs flow smooth when manually extruding via repieter host.
I did notice that my extruder gets very hot. I will take a temperature reading later this afternoon.
-
07-27-2015, 09:25 AM #4
- Join Date
- Apr 2015
- Posts
- 14
Your Nozzle temp is way to low for ABS. IT probably needs to be somewhere between 210-230C.
-
07-27-2015, 09:44 AM #5
- Join Date
- Jul 2015
- Posts
- 3
I ment 235. Started at 230 didn't flow as nice as at 235
Holes and pockmarks in print walls
Yesterday, 09:14 AM in General 3D Printing Discussion