[REVCAM_Bob]

Hi, I am trying to find an accurate method to index a part in 90 degree increments so we can grind 4 sides square on a cnc grinder. so I need the indexer to be able to be automated somehow.

I can't seem to find anything like this other than CNC rotary tables which seem quite expensive.

I would entertain building something as well.

If anyone has experience with something like this I would like to hear your thoughts!

Thanks

[RICHARD ZASTROW]

There are indexers out there that index with "M" functions, not a fourth axis. Usually, far less $$$$$$$$.

If indexing is the only automation you require, the indexing could be accomplished by a programmable controller.

Dick Z

[Andre' B]

This is not going to be of any help, but in my experience, the words.
Automatic (M code activated)
Accurate (for typical grinding type work)
Can stand up to a grinding environment
and
Inexpensive

Have never be see in the same sentence.

[RICHARD ZASTROW]

The indexers I'm familiar with use a Hirth coupling to locate the position. They are quite accurate. Voith sells them. International Machine & Tool (Warwick R.I.) sold indexers, but I don't know if they're still there.

Dick Z