I printed a rather long rectangular object, but the raft curled up from the bed at one end, resulting in a deformed result. Any suggestions about how to prevent this?
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There are several good pages detailing how to cure various printing issues. Check google.
Here are my suggestions:
* A heated bed
* check the cooling settings that control the extruder fan (turn cooling on)
* add 'mouse ears' at the corners to stick them to the bed
* add a skirt
* aim a small fan at the printer
* bevel the flat surface up by a 1/10th mm at the bottom leaving a wide edge around the outside. It allows the plastic to cool slightly as it drops to the bed. It's still flat when you're done.
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If your printing ABS turn off the print cooling fan for the whole print, what adhesive are you using on the bed, for ABS i had great success with buildtak, or kapton and cheapest glue stickComment
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I'm with jjpython on this. No cooling for ABS or HIPS. the only time I turn on cooling for those (and I manually modify the gcode) is on the first top layer or bridging. I have migrated away from kapton and print every material I have used with hair spray and basic shelf Glass. Except nylon. I use G10 garolote for that. Any hair spray will work as long as you see the word co-polymer in the ingredients twice. Apply one coat cold and heat on the bed. Once heated apply a second time hot. Cleanup is with hot water and a scraper. Also be very aware of drafts and bring up your bed temp. With my hair spray method rarely get curling. I print ABS and HIPS with a bed temp of 70c and PLAY at 50c. I am always conscious of drafts and how the air circulates in the room.Comment
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