Hi ceetee
I use a 1/8" dowell pin and/or 1/8" welding wire to set the diam. of cir..
The easy way to get the bigger hole right on dead center is to use your drill press..you may need to make a insert ring for the Jasper 300, I'm not sure what size of hole is now in the jig, but a plastic insert ring is easy to make with some hole saws...and some 1/4" thick plastic///// >>>
Chuck up a 1/4" drill backwards in the chuck,put some scrap wood under the Jasper jig on the drill press , push the drill bit in the 1/4" hole in the Jasper then clamp the Jasper and the scrap wood down to the table top, then check it one more time to make sure the drill bit goes right inside the 1/4" HOLE TRUE AND FREE,,, Once it's set chuck a 3/4" Forstner Bit and drill the 3/4" hole out...
http://www.amazon.com/Jasper-300J-Ro...sim_hi_title_3
This jig is calibrated for a 1/2-inch router bit.
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http://www.amazon.com/review/product...owViewpoints=1
One of the reviews below
" 2 of 3 people found the following review helpful:
2.0 out of 5 stars Great idea but poor router mount design
I tried to mount my router on this jig for the first time and the plastic cracked. The places where the screws are attached only have 1/3 of the thickness. This is too weak! If I loosen the screws a bit, the router would not stay at a fixed position. This jig would work well if the material is metal or the mouting area is made stronger. I've wasted $35 for this piece..."
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Originally Posted by ceetee Hey Mr. Bobj3: I am relieved - but embarrassed - to say that the simplistic solution was within 10 feet of my main workbench - a Jasper 300 circle jig. If it had been a snake - well, we all know the answer to that! I do not know the specific reason I bought it - maybe it was on sale wherever I got it. I checked at our local Woodcraft store and it's much more $$$ today. I've never used it to date but surely will in the near future. One question: Do you Mr. Bobj3, or anyone else, have a good method of what to use to put in the hole that dictates the diameter? A small screw? A special fastener of some sort? What do others, who use a Jasper circle jig, use to spin the jig around? Thanks for the great info! I sure wish I had seen my Jasper much sooner!
Measure twice, talk about it a lot, cut once! |