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Gerald Miller Gerald Miller is offline
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Default Using Metalworking Tools on Plastic

On Thu, 17 Nov 2011 14:21:09 -0800 (PST), Searcher7
wrote:

On Nov 15, 7:40*pm, Bob Engelhardt wrote:
Searcher7 wrote:
On Nov 15, 2:58 pm, Bob Engelhardt wrote:
In that case, I would look into using a table saw. *...
I don't see how that would be faster. Do you know of a jig that would
allow me to make a groove and then *quickly* shift the work over 1/4"
for the next groove until all 16 are done?


Sure, here's one that I made in 5 minutes:http://home.comcast.net/~bobengelhardt/CuttingJig.jpg

The arrowed blob is a screw stub 1/4" o.c. from the kerf.
To use, make a first cut anywhere. *For the 2nd cut, register the 1st
cut on the screw stub & cut. *Repeat. *The jig would be screwed to your
mitre guage. *A couple of seconds per cut.

As you can see, this prototype didn't keep the spacing very accurately.
* That was because the screw had very little bite in the 1/4" plywood
base and wobbled. *Better would be to replace the screw with a glued
strip of wood, or something.

Bob


Ok, thanks.

I wasn't think in terms of using my woodworking equipment also. :-)

Unfortunately, my table saw sounds like a Jumbo jet and my window of
opportunity closed when new neighbors moved in below me at the
beginning of the month.

But perhaps my router table will suffice. Unlike the cheap Delta table
saw I have, I have a miter gauge for it. (The table saw has unorthodox
miter gauge slot dimensions and therefore I'd have to make some
runners for it).

I do have a mini table saw that is about half the size of a bread
box. :-) But I doubt I'd find a blade thick enough to make 3/16"
grooves.

Thanks.

Darren Harris
Staten Island, New York.

Put 2 blades together?
Gerry :-)}
London, Canada