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bad quality print

Posted by trist077

trist077

bad quality print
August 22, 2015 11:19AM

Registered: 8 years ago
Posts: 78

as in pics one on left was without fan on the right with fan after first layer at 50

using repetier
purple pla 220 0.3 no heat bed perimeters 35 speed all

why do i get some smooth layers then further up i go get bad layers then settles smooth again then a mess

s995.photobucket.com

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AlexY

Re: bad quality print
August 22, 2015 12:14PM

Registered: 8 years ago
Posts: 166

It looks like your extruder is slipping, causing the bad looking layers; check your extruder tension and extruder motor current, and make sure that you've calibrated your extruder steps per mm.
Also, do you have a fan blowing on the hotend's heatsink? Without one it could easily jam after a few layers.

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trist077

Re: bad quality print
August 22, 2015 12:40PM

Registered: 8 years ago
Posts: 78

yes fan on heatsink e3d v6 genuine is the extruder tension the bit that is drawing in the filiment also how do i check current thanks#

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AlexY

Re: bad quality print
August 22, 2015 06:19PM

Registered: 8 years ago
Posts: 166

Yep, the extruder is the part pushing the filament into the hotend. Make sure that the filament isn't slipping, and that the stepper motor isn't skipping. If the motor is skipping or making knocking noises, turn the potentiometer on your board for the extruder motor clockwise a bit. Can you post some more pictures of your hotend and extruder assembly?

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trist077

Re: bad quality print
August 23, 2015 09:45AM

Registered: 8 years ago
Posts: 78

i did have a little knocking on extruder every so often thought it was because was to tight or loose so i turned pedometer a tiny bit clockwise lookin at board from bottom and the the ped at bottom so running a new print

heres some pics too

s995.photobucket.com

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trist077

Re: bad quality print
August 23, 2015 04:30PM

Registered: 8 years ago
Posts: 78

right hers the reprint the cube on more or less perfect a bigger tes large square with othjers on top bad quality (killed job on large square)

the stepper moter for extruder i edited the podometer and its warm to touch like the others does not fel too hot

also recalibrated extruder to 112 in marlin for 50mm filiment was 125 was not taking a full 50mm

s995.photobucket.com

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AlexY

Re: bad quality print
August 23, 2015 08:29PM

Registered: 8 years ago
Posts: 166

Have you tried lowering the temperature of the hotend? 220 seems really high for PLA.