Where to buy Limit switches & Spindle control

[replicapro]

I started this cnc project a while ago and then put it on a shelf. Well Im back again and I lost about a years worth of weblinks.

I have an X3, a Camtronics Servo unit with 4 320 Geckos.

Im almost done with the whole thing and the only thing I didn't buy was the proper hardware to control spindle,and coolant as well as limit switches.
If any one can shoot me a link,
I need a source for the following

1. Limit switches
2. Spindle motor control. What ever I put between the Camtronics servo box, and the mill.
3. Coolant control

Thanks in advance

[yeager]

www.cnc4pc.com

[NC Cams]

Honeywell sells some VERY nice but somewhat expensive limit switches under their Microswitch brand.

[unterhaus]

Industrial limit switches are huge (1.25"x1.25"x3"), but worth it if you want something that will last a while. The cheapest you will probably find them new is from Automation Direct at nearly $40 a pop.

This is the kind of thing that can be had for reasonable prices from ebay if you use a little discipline. Square D, AB, and many others make nice limit switches.

I bought relays from Automation Direct and from Ebay.

Can't imagine what you use for spindle control. If it's driven by one of the Geckos, shouldn't the computer turn it on and off?

[NC Cams]

Yes, you can get by with inexpensive limit switches. But is safety worth it???

I bought some used CNC lathes. The inexpensive limit switches like you'd use in a clean environment were installed by somebody as a well intended effort to do an inexpensive safety/limit system. I found MANY to be jumpered out because they quit working due to crap getting in them over time. Why??? guy was too cheap to fix them and (as my partner said, "you don't understand, you HAVE to run parts"). Hmmm and possibly hurt someone for life in the process.

Result: carriage went past limit and crashed tool and carriage into end mount of ball screw.

False sense of economy if you ask me.

Buy the best limits you can afford. If the good ones are a bit beyond your budget, stretch it all you can and buy them. You'll mount them once and never have to deal with them again. The fingers, eyesight, tooling you save could ultimately be your own....

[walter]

So, who sells this Honeywell Microswitch stuff online?