Arbor extension for a table saw

[Ted White]

Hello,

I chanced across this great forum while searching the internet. What a great site! I hope someone might help me.

I have an old Makita contractor saw (#2708) I need to dado 18mm grooves in plywood but the arbor is just not long enough for the stacked blades.

I wonder if it's possible to replace the arbor or extend it to accomodate the wide stack of blades?

Any help is greatly appreciated.

Regards,

Ted

[PaulS]

You could always use a router

[mikeyp]

From my memory there was a discussion on some machinery supplier in NZ here with a website link. While I was looking at the web site, I noticed they had an Arbor extension in their listings, however the details were not given.

Anyhow, I don't think you'd be able to get an Arbor extension and have it fit your existing blades. You'd need to turn down your existing Arbor, put an appropriate thread and then fit an extension. Difficult to do and be concentric (which would be rather important for balance issues)

Mike

[barnsey]

G'day Ted - Welcome to the forum. :)

Before I had a table saw and dado blades, I used to set up guides clamped to the work that could run either side of the portable saw platten. ie cut one would be used with the first guide to give me the first cut - the 2nd would be used on the opposite side to give me the second cut. Then any where between the 2 guides is waste, you can torment the blade to get rid of the balance or if you're more traditional you can use the old mallet and an appropriate sized chisel :eek: :D :D

You could even make a jig to do it on the same principle - guess it depends on how many and how far off you feel you'll be continuing this practise ;)

Jamie

[Ted White]

Thank you for the replies. The thought of an extension sounded a bit strange, but since I had heard of it I thought I'd ask.

I'm thinking a router would be the way to go. That, and upgrade my table saw!


Thanks for the gracious replies.

Ted White

[Soren]

Hello,

II wonder if it's possible to replace the arbor or extend it to accomodate the wide stack of blades?



I have a contractors saw, and have / had the same problem.
In my case, the abour is 5/8" but there is a flange at the base of the arbour which is 1".
I have had a 'long' nut milled, which has a 5/8" thread inside and is then barring the last 1/4" milled to a 1" diameter. What in effect this does, is to allow me to put a 1" abour hole blade into the saw, and as the 'long' nut is about 1 1/2" long, it enables me to use a dado blade, where without this nut, the arbour is not long enough, ie only 1 thread extends past the dado blade. With the extension nut, I can firmly mount the blade.

Hope it makes sense