|Project by NBeener||posted 04-16-2011 04:08 AM||11301 views||10 times favorited||17 comments|
I’m pretty conscious of the fact that LOTS of people simply set up their RAS to do a perfect 90 degree crosscut, and then leave it there—building jigs for other types of cuts. There’s some sound logic there.
[David (Patron) is rather a genius at this sort of thing, by the way. HIS RAS table has a totally funky, totally cool, totally ingenious, and totally functional system for setting miter angles !]
So … though I’m not totally convinced I’ll take that route … a jig or two won’t hurt, either way.
Here’s the miter jig.
I’ll likely either slice it right in half—right at the intersection of the two “cleats—” or … put a kerf cut about 10” into the 14” deep board.
Or … just cut half-way through (1/8”) the ply, and leave it just as it sits (probably what I’ll do).
It’s 1/4” plywood with a couple of 1.5” x 1.5” oak cleats that I ripped from scrap, and jointed until they were pretty much perfect.
Marked out my 45-lines, set up the cleats, checked square a couple of times, then glued them down, and secured them with a couple of brads (Hi, Norm !).
It measures out at a perfect 90, with my Incra square, my Groz square, my Swanson Speed Square, AND my rafter square (they’re all in one spot, so—anal though it is—I figured I’d check and re-check, any way I could !).
I did NOT put a fence ON (attached TO) the back of this (often done, in order that you can replace the RAS fence WITH the miter jig fence, for stability).
Instead, I’ll do one of two things, or both:
- put self-adhesive 150-grit sandpaper on the bottom of the plywood, or
- just clamp the sucker down onto my RAS table
Thanks for stopping by :-)
-- -- Neil