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Bandsaw circle jig

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Project by SPHinTampa posted 857 days ago 2853 views 4 times favorited 5 comments Add to Favorites Watch

Jig is made using left over 3/4” apple-ply (garbage) and straight grained jatoba.

Construction:
- Cut an 8” by 14” base from 3/4” plywood
- Made a 1/2” deep dovetail slot down center of the top of the base to accommodate dovetail shaped runner.
- Drilled a 5/16” hole about 2” from one end in the center of the slot and drove a 1/4” threaded T nut into hole
- Cut two 3/4” dados on the underside of the base, one located at the bandsaw miter slot and one located past the far edge of the bandsaw table
- Cut 2 runners from 3/4” plywood. I put two T nuts through the outer runner
- Glued runners into dados on the base
- glued a 1/4” dowel into a hole placed 1” away from the end of the jatoba runner

Use:
- Place base on the bandsaw with one runner in miter slot to position jig.
- Use bolts in the outer runner to hold jig in place (see picture 4)
- Slide runner until dowel is located at the radius of the arc you wish to cut
- Use knurled nob to push up into the dovetail runner to hold place in the slot

In this case, I drilled a 1/4 hole in a block and double stick tape to mount the block onto my panel so I could mount onto the dowel in order to cut the arch. (see picture 5)

-- Shawn, I ask in order to learn





5 comments so far

View Derek Lyons's profile

Derek Lyons

584 posts in 2192 days


#1 posted 857 days ago

Very nice design!

-- Derek, Bremerton WA --

View Roger's profile

Roger

14311 posts in 1428 days


#2 posted 856 days ago

very nice. an old song just came to my mind: The Friends of Distinction – Going in Circles..

-- Roger from KY. Work/Play/Travel Safe. Kentuk55@bellsouth.net

View doncutlip's profile

doncutlip

2832 posts in 2180 days


#3 posted 856 days ago

That should come in real handy, nice work

-- Don, Royersford, PA

View eddie's profile

eddie

7197 posts in 1238 days


#4 posted 856 days ago

i like it . got to build one of these one day .great job

-- Jesus Is Alright with me

View ratchet's profile

ratchet

1285 posts in 2411 days


#5 posted 855 days ago

That really appears to perform well.

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