Dovetail dado instead of t-track - Router Forums
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post #1 of 38 (permalink) Old 11-06-2009, 01:19 PM Thread Starter
gav
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Default Dovetail dado instead of t-track

Hi everyone.
For the life of me I can't find a source of t-track here in Croatia and importing it is out of the question considering postage and import taxes. The price becomes simply too high. I think Croatia is currently the highest taxed Country in all of Europe.
Anyway, has anyone here ever tried using a dovetail dado(think that's what you'd call it) instead of t-track ?
I figure if it was in hardwood it might work ok for stop blocks and such.
My other idea is to get aluminium box section and mill out a slot down the middle to make basic t-track. I guess it might be possible with a carbide bit.

Open to all suggestions.
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post #2 of 38 (permalink) Old 11-06-2009, 01:51 PM
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Hi gav:

One suggestion that I would put forth: Route dados in a plywood sheet. Then glue hardboard on the plywood. Finally cut slots in the hardboard, centered on the dados in the plywood. This technique creates t-tracks in the jig.

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post #3 of 38 (permalink) Old 11-06-2009, 03:23 PM Thread Starter
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Thanks for that idea. I might just give that a go. I guess just a normal straight sided dado would work with that method also.
Come to think of it, maybe I could just recess some strips of aluminium on either side of the dado, leaving a gap in the middle.
Lot's to experiment with.
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post #4 of 38 (permalink) Old 11-06-2009, 03:29 PM
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Quote:
Originally Posted by gav View Post
Hi everyone.
For the life of me I can't find a source of t-track here in Croatia and importing it is out of the question considering postage and import taxes. The price becomes simply too high. I think Croatia is currently the highest taxed Country in all of Europe.
Anyway, has anyone here ever tried using a dovetail dado(think that's what you'd call it) instead of t-track ?
I figure if it was in hardwood it might work ok for stop blocks and such.
My other idea is to get aluminium box section and mill out a slot down the middle to make basic t-track. I guess it might be possible with a carbide bit.

Open to all suggestions.
Hi Gavin

Doesn't the aluminium stockholder on the old Samobor road do it?

Otherwise,I'd try getting a visitor to bring some in. I got some lengths from Canada recently. Failing that,the suggestion of fabricating it using a dado in wood, but using two thin aluminium strips screwed down either side, to give you fairly strong lips, would work.

Cheers

Peter
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post #5 of 38 (permalink) Old 11-06-2009, 03:31 PM
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LOL !

Looks like you were typing that at the same time I was!

Cheers

Peter
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post #6 of 38 (permalink) Old 11-06-2009, 09:25 PM
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Quote:
Originally Posted by gav View Post
Anyway, has anyone here ever tried using a dovetail dado(think that's what you'd call it) instead of t-track ?
I figure if it was in hardwood it might work ok for stop blocks and such.
My other idea is to get aluminium box section and mill out a slot down the middle to make basic t-track. I guess it might be possible with a carbide bit.

Open to all suggestions.
The Elu table I bought 35 years ago uses dovetail slots and they are good.
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post #7 of 38 (permalink) Old 11-07-2009, 03:04 AM Thread Starter
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Thanks everyone. Looks like I've got a lot of ways to try it.
Peter, I guess you mean INOX,Crna Metalurgija,Obojeni Metali-Strojopromet-Zagreb, although it's not on the old Samabor road but near by. Was there just the other day and they say they don't have it. Perhaps there is a place on the Samabor road i don't know about.
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post #8 of 38 (permalink) Old 11-07-2009, 04:25 PM
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That looks like the one. BTW, if you can make patterns, there is an aluminium foundry down at Jastrebarsko.

Cheers

Peter
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post #9 of 38 (permalink) Old 11-09-2009, 10:14 AM Thread Starter
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Today I spent some time making t-track for my jig.
I used a new piece of 1cm2 Alu. and a rectangluar piece I picked up at the scrap yard.
I clamped the alu in the middle of my 'workmate' knock off and then used the routers edge guide to position the cutter in almost the right place
I didn't have a carbide bit the size I needed so I used a regular bit that I picked up at the flee market recently. 'What the heck' I thought.
The new piece worked fairly nicely, but the old piece kept melting and sticking to the bit Tried different router and feed speeds but to no avail. Not sure if it was different quality alu or due to oxidization of the old piece.
Managed to make what I needed in the end though, and it only required a little cleaning up with a small file.
Pics attached.
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post #10 of 38 (permalink) Old 11-09-2009, 01:01 PM
 
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Quote:
Originally Posted by gav View Post
Today I spent some time making t-track for my jig.
I used a new piece of 1cm2 Alu. and a rectangluar piece I picked up at the scrap yard.
I clamped the alu in the middle of my 'workmate' knock off and then used the routers edge guide to position the cutter in almost the right place
I didn't have a carbide bit the size I needed so I used a regular bit that I picked up at the flee market recently. 'What the heck' I thought.
The new piece worked fairly nicely, but the old piece kept melting and sticking to the bit Tried different router and feed speeds but to no avail. Not sure if it was different quality alu or due to oxidization of the old piece.
Managed to make what I needed in the end though, and it only required a little cleaning up with a small file.
Pics attached.
Very neat, Gav. Perfect example of "necessity being the mother of invention."
I believe I might try the same thing.
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