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Author Topic: Limit - Homing - Slaved - Racking - Help Please  (Read 1451 times)

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Limit - Homing - Slaved - Racking - Help Please
« on: May 10, 2014, 12:24:24 AM »
Hi. I am into version two, router table and going through the final setup but adding in more switches for the travel of my Y axis which I have added a slaved stepper to. I have found lots of wiring diagrams but nothing that can point me in the full direction of how to go about the limit and homing switches when I have a two stepper slaved motor setup.

Like last time I just ran a limit switch at the end of each axis with them in series NC. But this time I want to put a switch, both sides of the table. At each end of the Y axis and then one in the middle. I want to be able to setup Mach 3 so my machine will home axis Y and slave A, and will then also utilise the other switches to calibrate any racking out of the machine. And you know what? I have no confirmed idea on how to either wire them up or how to setup Mach 3 to know they are there.

My initial thoughts are to put each side of the table 3 switches in series for the Y axis and use two inputs. Then a third input for the Z and X axis switches wired NC in series?

Can someone help please? Too much information is not too much if you know what I mean. Otherwise I am operational and happy!

Regards Boyd

Offline Tweakie.CNC

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Re: Limit - Homing - Slaved - Racking - Help Please
« Reply #1 on: May 10, 2014, 04:30:06 AM »
Hi Boyd,

Lots have been in this position and there are a number of slightly different approaches dependant on your machine / setup. If you use the search box (at top of page) and search for squaring gantry or homing you will find many posts and possible solutions that may suit your application. Here are just a few...

http://www.machsupport.com/forum/index.php/topic,25867.0.html
http://www.machsupport.com/forum/index.php/topic,24240.0.html
http://www.machsupport.com/forum/index.php/topic,18258.0.html
http://www.machsupport.com/forum/index.php/topic,11951.0.html

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.