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 Dear LEGO / 3678
    Re: Hey Brad! Why not rerelease an *unpowered* monorail set? —Jim Schifeling
   You could get around that by running your seam down the ceter of the studs. There would still be no undercuts. Thus a 2 part mold. Probably too large a piece with no retun on investment gaurantee. Still sounds fishy to me. (...) (23 years ago, 18-Jan-02, to lugnet.dear-lego)
   
        Re: Hey Brad! Why not rerelease an *unpowered* monorail set? —Tim Courtney
   "crunch-o-matic" <naughty.monkey@verizon.net> wrote in message news:Gq5016.G01@lugnet.com... (...) studs. (...) a (...) .... only thing is the studs on the sides of the monorail track are the hollow type which accept things the size of minifig (...) (23 years ago, 18-Jan-02, to lugnet.dear-lego)
   
        Re: Monorail track molds? Factory visits? —Jim Schifeling
    You might be right if the molds are rigid. It could be done in 2 parts if the mold is flexible like vulcanized rubber or silicon (or low-tech like Knox gelatin and anitfreeze, or even hot glue). They were injected from the center top, you can see (...) (23 years ago, 18-Jan-02, to lugnet.dear-lego)
   
        Re: Monorail track molds? Factory visits? —Frank Filz
   (...) TLC's molds are machined metal (there are pictures in some of the books and examples at Legoland. The track is also "honeycombed" on the bottom. Frank (23 years ago, 19-Jan-02, to lugnet.general)
   
        Re: Monorail track molds? Factory visits? —Jim Schifeling
   Proof positive that I don't know everything. Frank, in your opinion would you say the "honeycomb" is an inherent part of the molding processing or a way to save on material? Retaining the strength of the unit while using far less ABS? What about (...) (23 years ago, 19-Jan-02, to lugnet.general)
   
        Re: Monorail track molds? Factory visits? —Frank Filz
   (...) Material and weight savings while retaining strength. (...) I believe baseplates are vacuum formed. Vacuum forming is usually a one piece mold and the item must be able to "fall" out. There is another molding process which I guess is vaccuum (...) (23 years ago, 19-Jan-02, to lugnet.general)
 

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