1

I figured out my failed prints problem, it seems my usb extension was bad causing errors to be transmitted during the print. I have a new question, I have tried to print a small Mario figure from thingaverse twice I have come back into the room and the print has been stuck to the extruder moving around. What would cause this, and how could I fix it? Is there something special I should be doing with smaller prints?

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Hi, sounds to me like:

1) insufficient bed adhesion - for PLA a spot of PVA glue does the job, the white stuff kids use. Dilute it if you wish. For ABS there’s something called ABS Slurry. Try also hairspray.

2) Nozzle too close to print bed, z home or z offset might be slightly incorrect.

3) lack of a heated bed, or incorrect bed temperature (too cold)

4) fan cooling too aggressive

5) incorrect setting for minimum layer times

Good luck!

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I just installed I glass bed and PEI sheet and have had no adhesion problems, Not sure what z offset or z home settings should be, Bed is heated to 65c, what should minimum layer times be on a small object?

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Hey, sounds like good upgrades there!

Parts becoming detached and clinging to the hot end are generally considered an adhesion issue. Need to figure out whats causing it.

z home is the homing location for your z axis, there’ll be a switch or a sensor that sets this. You may need to physically adjust it.

z offset is a setting in the slicing software, you can use this if you can’t physically adjust the switch/sensor height.

These two are mentioned because if your nozzle starts too low, the plastic will bulge and ripple then harden, and on the next layer the nozzle will bang into the rough terrain and after a few of these it could dislodge the part.

You want the plastic to cool pretty quickly before it starts to contract, minimum layer times ensure that the hot nozzle isnt passing over hot plastic too quickly - you’ll need to experiment to find a setting that works well, 30s or more might do it - start at 30 and go up in 5s. This will impat your total print time, always a trade off between quality and speed.

Bed temp of 65 seems a bit hot, for PLA on glass with PVA glue or 3ad EEZ I’m at 48.