Indexer problem

[mmason]

I have a prt indexer. My shopbot is a prt upgraded to 4g board.
My indexer from time to time will just stop during job but software will show it running. I have slowed speed down and fixed it only to have it come back.
I have checked to make sure I don't have the stock to tight and no bolts are hitting. I took stock out and ran indexer with only chuck on it. I can hold the chuck in my hand and with out much presser stop the indexer. It will make grinding noise. Is it bad indexer motor or 4g board.
http://www.talkshopbot.com/forum/images/buttons/edit.gif (http://www.talkshopbot.com/forum/editpost.php?do=editpost&p=115726)

[gerryv]

Michael,
Try posting it under the Indexer Section down further on the forum and you'll likely get a response. I'm no indexer whiz but I recall reading on other posts some time back that the Shopbot indexer program only allows X,XXX degrees of rotation - meaning only a max number of rotations when being used like a lathe. It's why I backed off buying an indexer back then. This "may" still be the case. Best get advise from those more knowledgable though.

[myxpykalix]

it is the gears in your indexer. You should not be able to stop a indexer with your hand. And the fact that you hear grinding noise is an indication it is probably the gearing in the indexer motor. Can you post a picture of your indexer or the model number?:eek:

[mmason]

Here is a pic. Also when the indexer isn't moving you can't turn it.
Thanks for any help.

[mmason]

Thanks Gerald and Jack.
I will also put this under the Indexer section

[mmason]

Well after much testing I have new stepper motor on the way.
Looks like you were right Jack.
Thanks to Frank from Shopbot for all his help.

Gerald I know alot of people are scared of the indexer for lathe work but I have done hundreds of turnings with it with much luck.

Thanks again
Mike Mason

[gerryv]

Thanks much for that info Michael; it's good to know :)

[myxpykalix]

Mike,
If you have done hundreds of turnings with your indexer you need to start posting some of your projects:D
I would definitely like to see some of your stuff!:eek: