|Project by Jim Jakosh||posted 05-20-2012 08:38 PM||8853 views||19 times favorited||17 comments|
Here are some real handy jigs I use all the time in my shop. The first one is the sine plate for accurately drilling holes at and angle in flat or round stock. I use it a lot for repairing or making replacement chair legs.
They are not the best looking jigs but they are made from what I had in the wood bin at the time and cut accurately enough to do the job. They will get beat up so I don’t go for pretty in these.
The way it is made is that there are two V grooves in the top plate put at exactly 10” apart. Then I used two tubes of the same diameter to get mounted in the grooves. The one at the pivot point is spit into three pieces and the outer pieces turn around the center. The center is screwed to the base and the ends are screwed to the top plate. To use it to drill at an angle, find the sine of the angle and multiply by 10 and make that much shim for the end that raises. You can make a clamp for the side of it as I did, but I have found it works just fine without it. Made from old particle board tops.
The other jig is just a v block for holding round parts for drilling. I use it on the sine plate some times. Made it in the table saw from red Oak
The last one is an angle plate I use in the drill press all the time. You can put a round part in the corner and throw a clamp on it to stabilize it for drilling the end. It is set very square so you can depend on it. Made from Oak faced plywood.
-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!