Printrbot Bed Adjuster Knob for 4mm Bolts
thingiverse
To fix my Printrbot Plus V2's vibrating bed issue, I increased the bolt size, used standoffs instead of nuts, and installed new 4mm bolts with a snug fit. Additionally, I replaced the standard nuts with standoffs for a longer mating surface and added new springs from Harbor Freight to ensure a tighter bed. As a result, all vibrations are now eliminated in my printer's bed.
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