|Project by Sawdust2||posted 02-23-2010 05:59 AM||3754 views||27 times favorited||20 comments|
on rare earth magnets. I think 10 for $8. So a friend bought a pack.
You see, last week we changed out the knives on my jointer but we only used a straight edge to align the knives.
Not very precise. And as I have two friends who are pretty anal about precision it was not good enough.
I had some spare polycarbonate pieces.
We resawed a few 3/8 pieces off the slab and then drilled 1/2” holes just deep enough to recess the magnets. Three on the end that would hold the knives and two on the end that would stay on the outfeed table.
When we changed the knives last week it made for a square, even cut but we knew we were just a smidge off on uniformity.
After we made these jigs we put the knife at top dead center, loosened the bolts and the knife just jumped to the magnets. The piece is narrow enough that we could then tighten the two outside bolts in place and then remove the jig and tighten the two inside bolts. Did that three times. Now when I flatten a board it is not only square it is as smooth as a baby’s butt. I’ve never had the blades that uniform before even using the expensive blade guides.
Rare earth magnets $8.00
Polycarbonate scrap FREE
2 knife setting jigs.
Can’t hardly beat that!
-- No piece is cut too short. It was meant for a smaller project.