|Project by sry||posted 1320 days ago||9783 views||34 times favorited||16 comments|
As you can see in the pictures, I’m currently in the middle of constructing a round table (my first real furniture project!!!), and needed a circle guide for my router. This is the design I came up with.
The jig attaches to my router (Bosch 1617) with two 3/8” steel rods, which are held together with a walnut block. They are attached to the block with epoxy and some small pins (nails, actually). The long bar is a piece of 3/4” extruded aluminum, epoxied into the block. The pivot pin is a small finish nail that I cut the head off and epoxied into the bottom of another walnut block. A thumbscrew through the top allows the pivot to be locked in place for a circle radius anywhere from about 8” up to over 40”.
One thing I didn’t think about beforehand is that the router is much heavier than the guide, and when I was routing the outside of my table top a counterweight (the clamp in the pictures). With a proper counterweight, I found that I could give it a little shove and the jig would spin freely almost 2 full revolutions before stopping. Another issue is that I couldn’t use any of my dust collection attachments with this jig, hence the pile of chips in the second pic. And that’s just from taking about 1/8” off the inside curve!
Total cost of materials: about $5
I have a sketchup drawing as well if anyone’s interested.
Comments and critiques are welcome and appreciated.