|Project by twoblacklabs||posted 09-18-2015 02:12 AM||4571 views||15 times favorited||10 comments|
I’ve been meaning to make this for awhile but just haven’t got around to it. Decided awhile back that I liked the ShopNotes version
Purchased the bearing a couple of months ago. Had difficulty finding a bushing to fit inside the bearing.
So I had the brilliant idea of just shoving a 5/8” dowel inside. This would allow me to then drill a 1/4” diameter hole for the 1/4-20 bolt. Problem was finding the exact center of that little 5/8” diameter piece. The first version looked pretty good but once I placed the bolt and spun the bearing the slight offset became evident. Tries two and three didn’t work either. So back to 9th grade algebra. Actually, I failed that class as missed so many classes thanks to a broken clavicle that I really fell behind. So off to google. As an adult, it was so much easier to understand how to find the center of a circle by drawing 3 cords and the subsequent perpendicular lines. Here's the formula.
One of the things that I discovered as that despite cutting the top and bottom pieces to the exact sizes on the plans, it only gave me 7/16” room between the blade and bearing surface. Doesn’t give me many options for ripping thin strips. In order to gain more room, I simply shortened the bottom piece length so that there is 1” between blade and bearing.
I needed a reference scale and happened to have an extra Incra scale that I had chopped short for my crosscut sled. While it starts at 40” versus 0”, I know what I’m looking at despite that big ole #4 LOL.
Overall I’m super happy with the end result. After zeroing the scale by placing the bearing to the saw blade (left most teeth) I set it for a 1/6” cut. As you can see, that’s EXACTLY what I ended up with.
-- If You Haven't Got the Time to Do It Right, When Will You Find the Time to Do It Over?