Free 186 More Best Homemade Tools eBook:  
Get tool plans

User Tag List

Results 1 to 7 of 7

Thread: Heat shrink joining square and round tubing - GIF

  1. #1
    Supporting Member Altair's Avatar
    Join Date
    Aug 2013
    Posts
    12,020
    Thanks
    1,365
    Thanked 30,313 Times in 9,998 Posts

    Heat shrink joining square and round tubing - GIF

    Heat shrink joining square and round tubing.




    Previously:

    HDPE pipe fusion machine - photo and video
    Friction welding drill pipe for oil exploration
    Pipe friction welding - GIF
    Polyurethane friction welder - GIF

    186 More Best Homemade Tools eBook

  2. The Following 9 Users Say Thank You to Altair For This Useful Post:

    carloski (Jul 26, 2022), durrelltn (Mar 13, 2022), elk-a-holic (Mar 9, 2022), flyfr8rs (Mar 13, 2022), johncg (Mar 9, 2022), mdhatter3 (Mar 8, 2022), Ralphxyz (Mar 9, 2022), Scotsman Hosie (Jul 3, 2022), Sleykin (Jun 28, 2022)

  3. #2
    Supporting Member Frank S's Avatar
    Join Date
    Aug 2015
    Location
    Peacock TX
    Posts
    11,634
    Thanks
    2,186
    Thanked 9,134 Times in 4,366 Posts

    Frank S's Tools
    square to round transition via drink bottle,,,,,,Hummm, could probably do this with gutter down spouts as well .

    2,000+ Tool Plans
    Never try to tell me it can't be done
    When I have to paint I use KBS products

  4. The Following 5 Users Say Thank You to Frank S For This Useful Post:

    baja (Mar 13, 2022), cognitdiss (Apr 29, 2024), elk-a-holic (Mar 9, 2022), mdhatter3 (Mar 8, 2022), Moby Duck (Mar 12, 2022)

  5. #3
    Supporting Member desbromilow's Avatar
    Join Date
    Aug 2012
    Location
    Australia
    Posts
    801
    Thanks
    527
    Thanked 362 Times in 207 Posts

    desbromilow's Tools
    aircraft modellers do a similar trick where they make up a small wooden form of a cockpit window, then shrink the PET bottle over the top to make the "cockpit glass", and then cut out the bottom to release the wooden form.
    I've done similar to make ogive transitions for model rocketry.

    The only constraint you have is that the PET won't easily shrink to less than the original "cast" diameter. PET bottles are made from blanks which are approximately the diameter of the neck where the lid screws on, so it's difficult for them to shrink less than that.

  6. #4
    Supporting Member Ralphxyz's Avatar
    Join Date
    Dec 2016
    Posts
    1,731
    Thanks
    3,197
    Thanked 295 Times in 241 Posts

    Ralphxyz's Tools
    How do you center things? Nice idea!

    Ralph

  7. #5
    Supporting Member Floradawg's Avatar
    Join Date
    Jul 2018
    Location
    Flora, MS
    Posts
    928
    Thanks
    745
    Thanked 197 Times in 153 Posts

    Floradawg's Tools
    I didn't know you could shrink that. That's good to know.
    Stupid is forever, ignorance can be fixed.

  8. #6
    Supporting Member baja's Avatar
    Join Date
    Dec 2017
    Posts
    258
    Thanks
    7,805
    Thanked 92 Times in 65 Posts

    baja's Tools
    Quote Originally Posted by desbromilow View Post
    aircraft modellers do a similar trick where they make up a small wooden form of a cockpit window, then shrink the PET bottle over the top to make the "cockpit glass", and then cut out the bottom to release the wooden form.
    I've done similar to make ogive transitions for model rocketry.

    The only constraint you have is that the PET won't easily shrink to less than the original "cast" diameter. PET bottles are made from blanks which are approximately the diameter of the neck where the lid screws on, so it's difficult for them to shrink less than that.
    I have used liquid yeast for beer brewing and the containers used to be liter soda bottle blanks before they were blown up. Now they sell it in plastic containers somewhat similar to ketchup packets.

  9. #7
    Supporting Member desbromilow's Avatar
    Join Date
    Aug 2012
    Location
    Australia
    Posts
    801
    Thanks
    527
    Thanked 362 Times in 207 Posts

    desbromilow's Tools
    Quote Originally Posted by Ralphxyz View Post
    How do you center things? Nice idea!

    Ralph
    As long as you are close, and you heat evenly, the surface tension of the shrinking plastic should centre the pieces for you - based on the concepts of equalising forces, and minimised surface area.



    2,000+ Tool Plans

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

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
  •