z limits not being recognized

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jdm033056
Posts: 3
Joined: Thu Nov 14, 2019 2:41 am

z limits not being recognized

Post by jdm033056 » Thu Nov 14, 2019 2:52 am

First post, sorry if this is in the wrong place. Arduino UNO, CNC Shield 3.0., UGS Platform. All 4 x and y switches trip a fault stage in UGS when triggered manually and force a reset but neither z switch does. Their leads check properly with continuity when removed from the Shield but once plugged into the Shield neither trip a fault when triggered manually in UGS. My Homing won't work Z moves 2mm positive and then faults. I think it is being caused by the switches not being recognized. Any ideas? Thanks

Bertus Kruger
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Re: z limits not being recognized

Post by Bertus Kruger » Sun Nov 17, 2019 6:51 pm

this old shield is GRBL 0.8 compatible and the pins are not the same anymore.

jdm033056
Posts: 3
Joined: Thu Nov 14, 2019 2:41 am

Re: z limits not being recognized

Post by jdm033056 » Sun Nov 17, 2019 10:05 pm

Thanks I discovered I needed to change the configure h code.

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