Anyone know why someone would custom make this clamp?
Close
Login to Your Account
Results 1 to 3 of 3
  1. #1
    Join Date
    Apr 2019
    Country
    UNITED STATES
    State/Province
    Colorado
    Posts
    2
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    0

    Question Anyone know why someone would custom make this clamp?

    My FIL dropped off a box of these Pony clamps that have been meticulously modified with a machined aluminum block and two machined and mandrel-bent mild-steel rods. Each rod has a c-ring groove machined into it so that the position of the rod can be moved from one hole to another, but it would appear that this was not done on a frequent basis, but in special circumstances as the c-ring is difficult to remove. The block is cut at a 45º angle on both ends and appears to be some type of right-angle clamp?

    The clamp side attachment is also highly-machined. The aluminum blocks that mount to the clamp have been machined to fit the inside contours of the clamp with a threaded hole that mechanically attaches the block the clamp with a 1/4-20 machine screw. There is a slight bullnose radius machined on the nose of the clamps at the point that the jaws meet. Again, there is a c-ring groove machined into the end of the mild-steel rod.

    We tried various ideas for clamping, including wood and steel. Angle-iron came the closest as it just about created a perfect 90º angle, but the angle would be very hard to weld, or even tack-weld with the position the clamp was in, and it seems like a LOT of trouble to make this clamp for something as common as tack-welding right angles.

    These clamps must have taken someone a significant amount of time to fabricate. I assume their use was critical to some process or required custom creation due to a more mainstream product that must have been VERY expensive to buy off-the-shelf. Has anyone ever seen a clamp design like this? Any idea why someone would create a box of 16 of these? I am considering taking them apart and salvaging the Pony clamps but would love to give them a better home if they can be used in this state.

    2019-03-10-14.45.18.jpg
    2019-03-10-14.45.45.jpg
    2019-03-10-14.45.33.jpg

  2. #2
    Join Date
    Dec 2012
    Location
    Se Ma USA
    Posts
    1,409
    Post Thanks / Like
    Likes (Given)
    108
    Likes (Received)
    800

    Default

    They were use to clamp outside miters. Prob on Granite counter tops. Not sure they worked. 2 CM and 3 CM thick. My guess is worth 2 cents, free this time.

  3. Likes sfriedberg liked this post
  4. #3
    Join Date
    Oct 2010
    Country
    UNITED STATES
    State/Province
    Oregon
    Posts
    4,863
    Post Thanks / Like
    Likes (Given)
    3862
    Likes (Received)
    1744

    Default

    Agree they were probably used to clamp outside miters. I'd put my money on something like picture frames, though.


Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •