Proximity or mechanical limit switches?

[gearsoup]

What are the pros and cons of each? I've seen builds use either setup. Just looking for some general info if you please

Using Mach3, what is a brief discription of the wiring sequence? Anything else needed to use limit (proximity or otherwise) switches?

[saghirecho]

u can find three wires with your switch of connector with ordindery switch simplly attahc switch body to computer pin and use + and 0- according to diagrame indicated on your switch and use out for computer pin it is preferred that you use these with opto coupler

saghirecho

[ssutton]

I personally use a mechanical switch for each axis for my limits, one for each of the three axis for a total of 6 switches. I do not use them for homes. I have my machine set up with 3 hall effect sensors for the homes. The mechanical nature of the switches could cause variability within the machine's 0 position. Many people use mechanical switches and have complete success, however, I am a controls engineer at my day job and I know that inductance type sensors that do not require physical contact will be more repeatable over time when compared to mechanical devices. It really depends on your machine and what your goals are for it. If you build it with the most expensive and precise bearing and drives components then YES go with inductive sensors for your homes. If it is mostly for wood then just use mechanical devices.

-Scott

[RomanLini]

There is a good thread on electronic home switches here;
http://www.cnczone.com/forums/open_s...made_easy.html

They can be used for home or limit switches, and have better accuracy and longer life than mechanical switches.