Welcome! Log In Create A New Profile

Advanced

Weird Z axis opto behavior

Posted by owism8 
Weird Z axis opto behavior
April 22, 2011 09:33AM
Hi gang,

I have an issue with the z axis opto-end. When the opto has detected that the Z axis is all the way down, it will not go back up but rather it will go down more. When I move the opto (which is mounted near the z axis motor) out of the way of the metal plate (which is mounted on the x axis) then the Z axis moves up.

This is a weird behavior because it should be reversed. Obviously optos cannot be reversed or else they will blow... so what am I doing wrong. Its not the opto.

Maybe the crimping job?

Thanks reprapers
Re: Weird Z axis opto behavior
April 24, 2011 12:04AM
Are you sure it's in the min-z and not the max-z port?
Re: Weird Z axis opto behavior
April 24, 2011 07:33AM
I dont know what minz and maxz ports are.

I figured it out though. On the following page: [www.reprap.org]

They mention that the wires could sometimes cause opposite behavior. If this occurs, just mirror the wires to rewire it, and so now it works fine.

Thanks all.

Thread closed.
Re: Weird Z axis opto behavior
April 25, 2011 05:24AM
Quote
owism8
I dont know what minz and maxz ports are.

The old Gen 3 electronics had a MIN and a MAX limit switch input on the stepper driver boards.
If you had hooked up to the MAX instead of the MIN then you might have the behavior that you reported.


Bob Morrison
W├Ârth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse
Re: Weird Z axis opto behavior
April 25, 2011 07:48AM
OH ok

Im using the Techzone monolithic board [www.reprap.org]
Sorry, only registered users may post in this forum.

Click here to login