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Injection moulding woes

Discussion in 'Electronic Projects Design/Ideas/Reviews' started by Dr_Doggy, Mar 13, 2017.

  1. aardyvarky

    aardyvarky Member

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    I did and got mostly gobble-de-gook can you post a link?
     
  2. Dr_Doggy

    Dr_Doggy Well-Known Member

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  3. shortbus=

    shortbus= Well-Known Member

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    I never used it to cast anything, but did use this to repair an old car (1955 ford) steering wheel once. Pretty much matched the texture and appearance of the original plastic. Lot of good information on the site too. http://www.alumilite.com/
     
  4. dave

    Dave New Member

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  5. aardyvarky

    aardyvarky Member

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    Disregarding the legal problems for now (though I think you are batting on a sticky wicket there):
    If you want 10 then 3d printing is the way to go.
    If you want 100 then 3d printed resin mould then make yourself.
    If you want 1000 then Al mould.
    If you want 10,000+ then steel mould.
     
  6. ClydeCrashKop

    ClydeCrashKop Well-Known Member

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    POLYVINYL ALCOHOL (PVA) is a mold release agent for casting polyester resins.
    A Google search for "pva mold release instructions" will give you a lot of good info on casting & mold making.

    http://fiberglasssupplydepot.com/PVA-Frequently-Asked-Question.html
    For additional information on the benefits of using PVA (particularly on new molds), please read “Why Molds Stick” by Bob Lacovara (Fabrication News, Feb 1991).

    The Prop Builder's Molding and Casting Handbook Is about making theatrical props. One section is about making flexible RTV silicone molds that might be perfect for your parts. Also info on latex, plaster and many other methods.
     

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