|Project by choppertoo||posted 06-02-2013 08:59 PM||2007 views||19 times favorited||12 comments|
I make cat towers to raise extra funds to help support my daughter’s volleyball habit. : ) The season is expensive enough but now they’re off to nationals so every nickle helps.
The relevance of that statement is that I need consistently sized circles on a regular basis. Of course there are lots of options when it comes to cutting circles, Router, band saw and the table saw. I have a trammel for my router and have made a circle jig for the band saw but for some reason I just like cutting them on the table saw so that’s what I do. I was doing this with my crosscut sled but with front and back fences there was not enough space for the size circles I need to cut so I had to rough them out on the band saw to fit making for a two step process ~read P.I.T.A. ~ so I had to come up with a solution.
The platform for the jig use to be the top of a computer desk left in one of my rentals. The legs were shot but I just can’t seem to throw away clean flat wood. (in this case MDF). I like it because I kept this from the landfill and it is perfect for this jig.
I delayed making this for some time because I couldn’t figure out how to set/lock my pivot pin and have it be flush with the top so as not to be in the way. I was going to cut a rabbit and use aluminum channel for the sliding pivot point but couldn’t find what I was looking for. After much searching I came up with a different solution and I like it very much.
This thing works like a champ I am very glad I finally put it together. It is very easy to adjust and use. I also figured out a way to avoid having to search for that tiny hole when setting up my cut.
I just cut my blank an 1/8 inch over sized then lower the saw blade and use the outside edge of the zero clearance kerf as one reference point then I measure half the radius from the pin and put a mark on the edge nearest to me. Line up the blank and tap it in place with a hammer. Raise the blade and cut away.
Final shot is of our critters doing some QC before passing them onto another happy cat.
Thanks for looking.
-- The greatest danger for most of us is not that our aim is too high and we miss it, but that our aim is too low and we reach it.. Michelangelo