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Reverse Z axis in pronterface

Posted by mogey336

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mogey336

Reverse Z axis in pronterface
March 30, 2018 11:16AM

Registered: 10 years ago
Posts: 23

I made Hbot printer but z axis is reversed in pronterface how can i correct it?

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the_digital_dentist

Re: Reverse Z axis in pronterface
March 30, 2018 11:25AM

Registered: 14 years ago
Posts: 5,801

When you home the machine does the Z axis move in the right direction?

Ultra MegaMax Dominator 3D printer: [drmrehorst.blogspot.com]

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mogey336

Re: Reverse Z axis in pronterface
March 30, 2018 01:23PM

Registered: 10 years ago
Posts: 23

Yes , it moves to the proximity switch

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the_digital_dentist

Re: Reverse Z axis in pronterface
March 30, 2018 01:42PM

Registered: 14 years ago
Posts: 5,801

And is the switch at the Z=0 position (bed at the top of the Z axis)? Is the switch plugged into the Zmin input port on the controller?

Ultra MegaMax Dominator 3D printer: [drmrehorst.blogspot.com]

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mogey336

Re: Reverse Z axis in pronterface
March 30, 2018 05:47PM

Registered: 10 years ago
Posts: 23

The switch on the top. When autobed leveling (G29) it moves to the top and auto level it self , I use the Zmin

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the_digital_dentist

Re: Reverse Z axis in pronterface
March 30, 2018 07:19PM

Registered: 14 years ago
Posts: 5,801

Positive and negative in Z are relative. The pronterface UI has positive Z up. Think of it not as the bed moving down, but the nozzle moving up relative to the bed. When you tell pronterface to move up 10mm, the nozzle is moving 10 mm above the bed. In your machine the bed moves down, in other machines the nozzle moves up. It's the same thing.