the Binford Clamp-O-Matic 5000

Discussion in 'Workshop Tips and Secrets / Tools' started by FritzW, Aug 20, 2019.

Help Support HomeBuiltAirplanes Forum by donating:

  1. Aug 20, 2019 #1

    FritzW

    FritzW

    FritzW

    Well-Known Member

    Joined:
    Jan 31, 2011
    Messages:
    3,451
    Likes Received:
    3,053
    Location:
    Las Cruces, NM
    Since my "clamp-less" Ranger project is taking every clamp I can find... :oops:
    20190819_115828_resized.jpg


    The 'clecoed wood' idea is working out great for aligning the parts but they're not supplying enough clamping pressure (some do, some don't, it's not reliable). So I came up with some quick and dirty clamps that take care of alignment and clamping pressure.

    Ranger clamps6.JPG
    Ranger clamps7.JPG
    The grey lines show the stick and the plywood and the 1/8" offset that I need for the top and bottom skins. The top clamp is for stock that's pretty close to 3/4" square (+/- a few thousandths). The bottom one let's me get away with stock that's a little farther out than that. ...not that any of my stock is more than .002 out

    The mustache clamp replaces the tin cans full of nuts and bolts in the top picture. It applies pressure over about 5 1/2", perfect for the typical 6" cleco spacing. The #6 Nylon bolt goes up through a cleco hole that's in the middle of the panel where edge clamps wont reach.

    Ranger clamps4.JPG
    Ranger clamps5.JPG
    There's just enough bow in it to apply even pressure along the whole clamp when the wing nut pulls the center down to the wood.

    Here's the general idea...
    Ranger clamps1.JPG
    Ranger clamps2.JPG
    Ranger clamps3.JPG

    A set of three (one of each) cost about 10 cents and takes about 30 minutes to print. Most of that is the mustache, but I'll only a half dozen of those.
    20190819_184026_resized.jpg


    ...continued on next post because I hit the picture limit :mad:
     
    Last edited: Aug 20, 2019
    Hephaestus likes this.
  2. Aug 20, 2019 #2

    FritzW

    FritzW

    FritzW

    Well-Known Member

    Joined:
    Jan 31, 2011
    Messages:
    3,451
    Likes Received:
    3,053
    Location:
    Las Cruces, NM
    ... post #1 continued

    Here's the flex in the mustache that evens out the clamping pressure when the wing nut tightened (I didn't have any Nylon bolts or wing nuts, I'll have to order some from McMaster Carr)
    20190819_185628_resized.jpg
    20190819_185900_resized.jpg

    A test fit...
    20190819_185951_resized.jpg


    I glued up some scrap with just the small clamps to make sure the pressure was right. Judging from the squeeze out I think I got lucky on the first try. ...there would be lots of way to change the clamping pressure
    20190819_192749_resized.jpg
    I'll give the glue a few days before I break it and see how it does.
     
  3. Aug 20, 2019 #3

    fly2kads

    fly2kads

    fly2kads

    Well-Known Member HBA Supporter

    Joined:
    Jan 2, 2010
    Messages:
    1,444
    Likes Received:
    526
    Location:
    Justin, TX
    Good stuff, Fritz!
     
  4. Aug 20, 2019 #4

    Hephaestus

    Hephaestus

    Hephaestus

    Well-Known Member

    Joined:
    Jun 25, 2014
    Messages:
    972
    Likes Received:
    213
    Location:
    YMM
  5. Aug 20, 2019 #5

    FritzW

    FritzW

    FritzW

    Well-Known Member

    Joined:
    Jan 31, 2011
    Messages:
    3,451
    Likes Received:
    3,053
    Location:
    Las Cruces, NM
    Lot's of fun but ...a completely... different concept.
     
  6. Aug 20, 2019 #6

    Speedboat100

    Speedboat100

    Speedboat100

    Well-Known Member

    Joined:
    Nov 8, 2018
    Messages:
    584
    Likes Received:
    42
    Location:
    Europe
    Here is my "clamp" for glueing 4 composite strips to 4 spar caps.
     

    Attached Files:

  7. Aug 20, 2019 #7

    TFF

    TFF

    TFF

    Well-Known Member

    Joined:
    Apr 28, 2010
    Messages:
    11,451
    Likes Received:
    3,182
    Location:
    Memphis, TN
    Very nice solution and execution. But it’s only a knockoff. Everyone knows a real Binford tool is attached to a chrome blown Chevy V8.
     
    FritzW and Hephaestus like this.
  8. Aug 20, 2019 #8

    Hot Wings

    Hot Wings

    Hot Wings

    Well-Known Member HBA Supporter

    Joined:
    Nov 14, 2009
    Messages:
    6,217
    Likes Received:
    2,192
    Location:
    Rocky Mountains
    delta likes this.
  9. Aug 20, 2019 #9

    Charles_says

    Charles_says

    Charles_says

    Well-Known Member HBA Supporter

    Joined:
    May 27, 2019
    Messages:
    137
    Likes Received:
    48
    AND.......
    For the low tech set


    1" x 2" x length you need furring strips with a bolt, "acoupla" washers, and a wingnut. Epoxying rear Spar.jpg (My pic)
    the static end, can have extra blocks to adjust for thicker pieces. Make 'em for about a buck (USD) or so, ea.

    and don't forget the wife's stash of mini clamps.....
    aileron tip match-up.jpeg
    i.e. clothes pins... available in the "Dollar Store" here in the US..
    (photo, by others found on the net)
     
  10. Aug 20, 2019 #10

    Tiger Tim

    Tiger Tim

    Tiger Tim

    Well-Known Member

    Joined:
    Apr 26, 2013
    Messages:
    2,842
    Likes Received:
    1,583
    Location:
    Thunder Bay
    Home Depot has a limited amount of nylon hardware in the bulk aisle if you get impatient waiting for your shipment.
     
    FritzW likes this.
  11. Aug 20, 2019 #11

    FritzW

    FritzW

    FritzW

    Well-Known Member

    Joined:
    Jan 31, 2011
    Messages:
    3,451
    Likes Received:
    3,053
    Location:
    Las Cruces, NM
    ...use what works best
    20190820_090758_resized.jpg
    You can't beat a piece of coat hanger wire wrapped around a broom stick for gluing in those pesky corner blocks on Volksplane wing ribs.
     
    Hot Wings, fly2kads and Hephaestus like this.
  12. Aug 20, 2019 #12

    FritzW

    FritzW

    FritzW

    Well-Known Member

    Joined:
    Jan 31, 2011
    Messages:
    3,451
    Likes Received:
    3,053
    Location:
    Las Cruces, NM
    Clamping pressure is only part of what these (orange) clamps do. Their real trick is holding the parts in proper alignment while they do the clamping. And the mustache clamp does it out in the middle of a panel where all these other clamps can't reach.
     
    Mcmark likes this.

Share This Page

arrow_white