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Thread: New Planer Sled Design ("Multiwedge")

  1. #1

    New Planer Sled Design ("Multiwedge")

    Hi there. I'm not a frequent poster here, but because there always seems to be a lot of chatter about jointers, planers, and combinations thereof, I thought I would share a new planer sled design (for flattening boards) that I came up with. It's meant to be convenient, easy, and quick to use. (Though most people don't design stuff that's meant to be annoying, right?)

    In any case, I made a video about it here: https://youtu.be/6aB21q58MkU

    I have a small, mostly useless write-up on my dumb blog, but the video seemed to be the best way to show what it's supposed to do.

  2. #2
    Join Date
    May 2005
    Location
    SE South Dakota
    Posts
    1,538
    Thank you Brian, great presentation.

    Bruce
    Epilog TT 35W, 2 LMI SE225CV's
    CorelDraw 4 through 11
    CarveWright
    paper and pencils

  3. #3
    Join Date
    Oct 2019
    Location
    Smoky Mtn Tennesee
    Posts
    29
    fantastic video

  4. #4
    Join Date
    Apr 2021
    Location
    Austin, TX
    Posts
    652
    Very cool design Brian. Thanks for sharing! I needed this last weekend (isn't that always the case?)

  5. #5
    Join Date
    Jun 2005
    Location
    Shorewood, WI
    Posts
    897
    I like your design. It addresses most of the problems of other sleds: much lower weight by having reference flat surface separate, fixing board in place with wedges held with wedges rather than screws (as in the Rust design) keeps metal away from cutters. Sandpaper bits anchor the wedges well, but on the other side you could consider a bevel, making the dados into sliding dovetails (just on one side - wedges should meet wedges square). That might lock everything down even better.

    Clamping to your workbench offsets the tendency to arch upwards caused by pushing in wedges on top. But you might think about making a continuous narrow strip in the top layer down the middle the length of the sled. That could help to resist the arching, and possibly make it harder to bump the wedges out of place as you manipulate the sled.

  6. #6
    Quote Originally Posted by Alan Schwabacher View Post
    but on the other side you could consider a bevel, [...]. That might lock everything down even better.
    Suggestions like your neat idea here come up from time to time, especially when it comes to concern about the sled flexing and the wedges loosening up. I considered a lot of possibilities for fixing the wedges in place. In practice, though, I haven't found a need for anything stronger, presumably because the wedges don't need to be held in place for very long, and the wedging direction makes them resistant to backout forces from the feed rollers. When I was developing the sled, I just always seemed to come back to the straight slot design because it's so easy to build and always worked fine.

  7. #7
    Join Date
    Mar 2014
    Location
    Los Angeles
    Posts
    1,357
    Beautifully tuned hand plane too!

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