Incra question. Forum shopping

[S Bolton]

Incra jigs work, as I understand, in increments of 1/32 of an inch. It does this by interlocking saw tooth racks. The racks keep things at the 1/32 increment.

I don't understand how the fine tuning feature that allows you to adjust by 1/1000 of an inch works. If you adjust by 1/1000 of an inch, does the entire set of of saw tooth racks (both racks) then move by 1/1000 of an inch, or when you put the locking lever down, does it then jump to the first closest saw tooth it can find. It seem like if it jumps to the first closest saw tooth rack it can find, you have defeated your efforts of adjusting by 1/1000 of an inch.

If one rack on teeth are moved, I can't understand how the microadjustment works, as it seems like it would simply interlock with the next mating tooth on the other rack of teeth.

I have the Incra Ultra Lite which uses the hard plastic racks. I think the LS uses iron teeth racks.

Obtuse question at best. But thanks for any input.

sb

[challagan]

I believe that the micro adjust feature is to sneak up on an accuratley as possible on a starting point.... when using the fence then with the positioner it will adjust it in 1/32nds regardless as you say. The system is built around that.

Corey