ZCI Sled

JPG · Post by **JPG** » Tue Jan 17, 2012 2:34 pm

Is there some reason to not put a normal insert in the table, mount the rip fence and position it so as to space the ZCI over the same blade it is to be used with. and reposition the insert(front to rear) so that the blade will extend the cut as the table is lowered?

Clamping it down would be a good idea!;)

dusty · Post by **dusty** » Tue Jan 17, 2012 3:08 pm

charlese wrote:Everyone has been thinking of how to do this with some type of power tool. How about using a hand saw!! Keyhole saw, rip saw or even a cross cut for this type of cut. The extra 2" can be made before even getting an electric saw plugged in.

You are absolutely correct, Charlese but that would be no fun at all. Besides, I did not spend good money on my Shopsmith so that I could use one of Grandpa's hand saws.

claimdude · Post by **claimdude** » Tue Jan 17, 2012 5:26 pm

dusty wrote:I do exactly as you have just described BUT the kerf that is cut this way does not provide for the upper saw guard. You do you use your upper saw guard - right?:rolleyes:

Dusty,

Yeah, I use the upper guard. Once I have cut the insert by lowering onto the SS saw blade I extend the rear opening with a fine blade on my Bosch saber saw. On other inserts I have installed a kerf splitter in the insert to allow for situations when I can't use the saw guard.

Jack

dusty · Post by **dusty** » Tue Jan 17, 2012 6:27 pm

heathicus wrote:What about screwing a few washers to the underside of the runners to make use of the t-slot in the table?

This would be an excellent solution and if I am lucky the finished sled will have miter bars with the t-slot feature built in. I have a miter bar project on a wait list (time available) with a friend who is a machinist.

dusty · Post by **dusty** » Tue Jan 17, 2012 6:33 pm

I want to thank all who have commented on this project. I have a sketch done and it will be on the bench in a couple days. I should be able to finish it in a couple hours (mostly thinking time). IF the concept is valid.

I will post results whether it works or not.

fiatben · Post by **fiatben** » Wed Jan 18, 2012 11:27 am

Double sided tape??

robinson46176 · Post by **robinson46176** » Wed Jan 18, 2012 12:06 pm

terrydowning wrote:And the best part, they are all cordless and the batteries never wear out.

I like hand tools but my batteries do run down...

.

terrydowning · Post by **terrydowning** » Wed Jan 18, 2012 12:47 pm

robinson46176 wrote:I like hand tools but my batteries do run down...

.

Just take a nap and grab a snack...

Those are thing that make good.

JPG · Post by **JPG** » Wed Jan 18, 2012 1:55 pm

Y'all are making this way too complicated IMHO!

FGS all you need to do is extend the back end of the kerf!

A sled. Anti tip washers. A mount for the blank. Runners for the sled.

What is wrong with the fence set to the 'correct' distance from the blade(so it matches the kerf first cut), positioning the insert towards the front of the table,(all this after putting a 'regular' blade insert back in the table), clamping the new insert so it stays flush with the table and fence, and finally again lowering the table to extend the first cut?

Or do I mis-understand the 'objective'???

heathicus · Post by **heathicus** » Wed Jan 18, 2012 2:15 pm

JPG40504 wrote:Or do I mis-understand the 'objective'???

I think you do. You're thinking the objective is to extend the kerf on the insert. But the real objective is to spend time in the shop to build a new gadget/jig that is clever, functional, and safe. The objective is the build... not the kerf.

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