3DPrinting

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3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

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Question about Z screw coupler (self.3dprinting)

submitted 10 months ago by ArtVandelay to c/3dprinting

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Hi all, I have a quick question about my z screw coupler (as i understand it, the metal cylinder at the bottom you can manually move your z axis up and down with).

When I manually raise the z axis (with steppers disabled) by rotating the coupler clockwise, after I let it go, it reverses it's rotation on it's own and sinks back down. This is frustrating because it takes forever to actually move it any distance. Am i doing anything wrong? Should you only ever move the z axis with software, and if so, is there a way to fix the issue of it going back down? I don't know how to adjust the tightness of this part, I'm still pretty new.

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[–] ArtVandelay 1 points 10 months ago (1 children)

Thanks, that's probably the route I will take. Just wanted to know if that behavior was abnormal or not, but it sounds like it's not too far outside the realm of people's experiences in general

[–] dual_sport_dork 1 points 10 months ago* (last edited 10 months ago)

Probably.

FWIW with the motors unlocked I can just push on my print bed either up or down, and it'll move. Mine just doesn't move under its on weight. Maybe it would if it had a big model on it or something, I dunno.

If yours is a bed-slinger gantry machine where the head moves up and down rather than the print bed, the same applies. Just in reverse.