Author Topic: Router sled via low cost linear motion  (Read 710 times)

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Offline Michael Kellough

  • Posts: 4779
Router sled via low cost linear motion
« on: May 24, 2020, 11:15 AM »
Just noticed that Lee Valley is offering a kit for making a very low cost router sled.

Lee Valley router sled kit

The linear motion is the same principle used by some panel saw manufacturers. U bolts populated with wide nylon washers provide a low friction ride on round tubes.

In this case Lee Valley provides the hardware suitable to ride on nominal 1-1/2” diameter EMT, along with CNC cut wood parts to make a uniform cross-slide for the router.

There are many other things you can do with such a simple, lightweight, and economical linear motion kit.

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Offline Banana

  • Posts: 48
Re: Router sled via low cost linear motion
« Reply #1 on: May 24, 2020, 01:45 PM »
Not putting it down, I think it’s pretty cool.  I love these kinds of simple readily available solutions, they often work well, or well enough and we all employ similar hardware-store-engineered concepts from time to time. 
But I have to say the low tech ‘novelty’ of the system is something you would expect to see in clickbait diy woodworking tips video.  Some hardware U bolts, some loose fitting nylon standoffs, and some drilled scrap plywood… $90.  (emt pipe etc. not included).  Lee Valley’s got some cojones.  Wish I had thought of it.

Offline usernumber1

  • Posts: 98
Re: Router sled via low cost linear motion
« Reply #2 on: May 24, 2020, 02:09 PM »
they got some brains. those nylon bearings seem to glide incredibly well in the video. the pipe is probably full of little bumps and it just soaks them up

i haven't see anyone do this solution by hanging the carriage off u-bolts! it seems so obvious now.

Offline ChuckM

  • Posts: 1765
Re: Router sled via low cost linear motion
« Reply #3 on: May 24, 2020, 02:17 PM »
they got some brains.
Snip.
Brilliant ones. [thumbs up]

Online Gregor

  • Posts: 1712
Re: Router sled via low cost linear motion
« Reply #4 on: May 24, 2020, 08:19 PM »
I had the feeling to have seen this before, there is prior art:

https://patentimages.storage.googleapis.com/ba/76/7f/491a8f49a801ae/US7752698.pdf

Offline Michael Kellough

  • Posts: 4779
Re: Router sled via low cost linear motion
« Reply #5 on: May 24, 2020, 08:33 PM »
I’m surprised by the patent. This use has been in production for decades.


Online Cheese

  • Posts: 7391
Re: Router sled via low cost linear motion
« Reply #6 on: May 24, 2020, 10:06 PM »
A cool alternative for someone who isn’t going to dedicate the rest of their life to working slabs.  [eek]

Myself included, a slab or two...how many more does a guy need?

The U-clamps and nylon washers have been used for years on Milwaukee and Speed Saw products.

Offline Bob D.

  • Posts: 1652
Re: Router sled via low cost linear motion
« Reply #7 on: May 24, 2020, 10:17 PM »
I think it would prove worthy of the asking price for the occasional slab surfacing. Not a production tool but the price it right. I can't see setting this up with a span of more than 5 feet though. I don't think 1-1/2 EMT is sturdy enough for this but it has a relatively smooth surface. If they offered some 6061 Aluminum tubing in various lengths that would be  a plus. By the way the price is $69 (I just checked) in the catalog I got recently.  Different area gets catalogs with different pricing, or maybe Robin likes me and I got he one with the special discounts (no, that ain't it) :-)

I do think the compact router table on the next page is a bit pricey for what it is at $129, even $99 would be high for that.
-----
It's a table saw, do you know where your fingers are?

Offline usernumber1

  • Posts: 98
Re: Router sled via low cost linear motion
« Reply #8 on: May 24, 2020, 10:21 PM »
oh dang

Offline rvieceli

  • Posts: 1201
Re: Router sled via low cost linear motion
« Reply #9 on: May 25, 2020, 08:03 AM »
Lee Valley is in Canada. that's 90 Canadian 69 USD

Ron

Offline Steve1

  • Posts: 54
Re: Router sled via low cost linear motion
« Reply #10 on: May 25, 2020, 08:42 AM »
Looks like junk to me.   The u-bolt linear bearings in particular.   If I wanted something cheap and dirty, I would make my own with wooden "linear bushings" just a wooden block with a U shaped hole.   Then just push a little harder.