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98A not printing well  

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Titan
(@titan-3)
New Member
98A not printing well

I just got a roll of 98A to use with my MK3S printer, I used the 98A setting in PrusaSlicer-2.1.0 and the first thing that happened when I started to print a benchy was that the filament wrapped around the bondtek gear a bit making an s. After fixing that by loosening the screw squeezing the filament I tried again, this time after it started the second layer it got a "Thermal Runaway" Error, the heater on the nozzle was cooled much faster than it heated up, I kind've fixed this by turning the ac off in the room (It was about 55 F I think), Third try it almost succeded by making benchy but it just looks terrible. Fourth try after I did a "cold pull" to dislodge any possible dirt or filament in the nozzle (nothing was pulled out, its only a few weeks old) It wrapped around the gear again, fifth time it looks just as bad as the first one. I made a 20 mm cube to see if it was just benchy, it wasnt. Finally I printed a benchy using the Grey Prusament that came with the printer as reference.

I hope someone can help me with this problem

Posted : 17/08/2019 12:28 am
jonathan.t24
(@jonathan-t24)
Active Member
RE: 98A not printing well

try printing a stepper motor cooler, I think your problem, is similar to what Ive been experiencing, as the motor heats up, the already flexible filament is heated and cannot be pushed into the ptfe tube. I printed this and seem to have solved the problem..

https://www.thingiverse.com/thing:2975582

remember to use a 5v fan, you can splice into the hotend fan (my plan) .

at the moment Ive resorted to a 12v fan and an external battery for a quick fix, but last night the connector failed, and thus so did my print.... 😥 

Posted : 24/08/2019 1:39 pm
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