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Long story but I am redoing my homing and limit switching on my large format CNC.

I would like to make it so I can have these sensors https://tinyurl.com/yc6k8bwp move straight into their stops/triggers instead of sliding over the tops of their triggers. That way I can adjust them in or out instead of slotted mounts side to side. They also will be better protected since they are kind of long.

On my X axis I was hoping to have the limit and home side by side with different distances to trigger them.

I designed and 3D printed some mockups

Attachment 510514


https://photos.app.goo.gl/qfwzAgjoLG25ny6A8 https://photos.app.goo.gl/fuVkicDSBw1UhrS4A

What I was thinking is have the home sensor triggered by something stronger a few millimeters from the limit switch. Maybe have the home a piece of steel and the limit a piece of aluminum? Or would a small magnet make it trigger sooner giving me more room?

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Well, as a follow up, I guess this was a stupid question since I’m using CNC 12 and an acorn six control board. I started my CNC journey using Mach 3, and then Mach 4 and had optical slot sensors. When those were tripped for limit switches, it immediately stopped servos and steppers where they were there was no over travel. It just stopped. Now I’m finding with CNC 12 and the centroid board that unless I’m going at one X jogging anything faster things keep moving past and will crash into the sensor it’s kind of like there’s a slow shut down instead of an instantaneous one. So now I’m reconfiguring everything to pass over the triggers.