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t-slotted extruded aluminum fence rails?

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Forum topic by UltramaticOrange posted 10-15-2014 04:20 PM 1398 views 0 times favorited 7 replies Add to Favorites Watch
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UltramaticOrange

7 posts in 793 days


10-15-2014 04:20 PM

Topic tags/keywords: table saw fence

Does anyone out there have experience with t-slotted extruded aluminum used with linear bearings (see example links)? I was planing on using them to expand the reach of my fence on a cabinet for my table saw, but if there’s too much play on those bearings, I need a new plan.

extruded t-slots: http://www.mcmaster.com/#t-slotted-framing/=u5w8s9
linear bearings for t-slots: http://www.mcmaster.com/#=u5w94m

-- Happiness is measured in grit.


7 replies so far

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ChrisK

1809 posts in 2541 days


#1 posted 10-15-2014 04:29 PM

First look for an 80/20 distributor, should much cheaper than McMaster. http://8020.net/

The bearing will probably need to be shimmed to make the bearing not wobble too much. However to tight and the bearing will not move easily. The extrusions I have used in the past are pretty straight, so no problem there. Bu the linear bearings are sloppy.

-- Chris K

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shawnn

47 posts in 825 days


#2 posted 10-15-2014 04:34 PM

It’s called 80/20. They have an outlet store on Ebay where the items you’re specifying for your design should be much more affordable than mill supply retailers.

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shawnn

47 posts in 825 days


#3 posted 10-15-2014 04:36 PM

Oh yeah, I read a post on LJ here where someone used 80/20 to build a fence. It might be useful to find that post & read it.

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UltramaticOrange

7 posts in 793 days


#4 posted 10-15-2014 04:40 PM

Awesome. Thanks, all! When I find that post I’ll link it here.

-- Happiness is measured in grit.

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UltramaticOrange

7 posts in 793 days


#5 posted 10-15-2014 04:55 PM

Found it. It’s very nearly an identical design to the one in my head. Glad to see I’m on the right {pun omitted for content}.

http://lumberjocks.com/Hutch/blog/2740

-- Happiness is measured in grit.

View Mark Davisson's profile

Mark Davisson

597 posts in 2777 days


#6 posted 10-15-2014 04:57 PM

Allan Little is doing quite a lot with aluminum extrusions. He has some videos posted. Here’s the first:

https://www.youtube.com/watch?v=tN9tRwGJ0Xs&list=PLqtTuVwYBfkylRsdkaYoNuDIrdLOjEvym

-- I'm selfless because it feels so good!

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UltramaticOrange

7 posts in 793 days


#7 posted 10-15-2014 05:51 PM



Allan Little is doing quite a lot with aluminum extrusions. He has some videos posted. Here s the first:

https://www.youtube.com/watch?v=tN9tRwGJ0Xs&list=PLqtTuVwYBfkylRsdkaYoNuDIrdLOjEvym

- Mark Davisson

Thanks! I’ll check it out when I get home.

-- Happiness is measured in grit.

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