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Mounting the track for the Indexer

You can mount the track for your Indexer so that it is parallel to either the X or Y far as the Indexer's operation is concerned it doesn’t matter which one. If you are going to mount it to the ShopBot table surface or other machinable surface, the job will be easier if you first use a flat-bottomed bit with your ShopBot to surface an area that is flat to mount the track on. You can also machine a straight edge to mount the track against so that you know that it will be parallel to the ShopBot's motion. You can also mount the Indexer tracks to the inside faces of the table side. If you have a PRT or earlier tool you will have to drill holes for mounting, but the grooves in the Aluminum table side Extrusion for the PRS tools allow easier mounting with no drilling required

One important thing to remember is that you will want as much clearance between the center of the tailstock and the ShopBot’s carriage above it, as you have between the center of the tailstock and the aluminum tracks below, in order to maximize the diameter of the parts you can turn.

Here are a few additional requirements/suggestions

  • The track MUST be mounted so that the centerline of headstock and centerline of the tailstock line up with the ShopBot's axis' in all 3 dimensions. This may require some shimming, but if have to shim it's better to shim between the track and the table or sides than between the track and the Indexer motor bracket. That way you won't lose alignment when you move the Head or Tailstock.

  • To use the Indexer Virtual tool to create files for your indexer, the headstock MUST be at the end of the track that is closest to the 0,0 point of your ShopBot

How can I tell if the headstock and tailstock are aligned?

Use a full length t-track to carve long OR short pieces...

BillYoung, Scottcox
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