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Ali Machinchy’s F-105 Thunderchief #30 | Opening Mold

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One Response to “Ali Machinchy’s F-105 Thunderchief #30 | Opening Mold”

  1. dusterpilot says:

    Bob, I believe what it happening is when you attempt to separate the mold from the plug it is producing a vaccuum which makes it extreamly difficult to overcome. The pressure that is holding it down is 14.7 lbs/square inch making tha amount of force you are having to overcome is extreemly high (just multiply the width by the length. That’s the amount of pressure that’s holding that plug together. Could you just drill a very small hole in the mold? Then all that pressure holding it together would be gone. Then you could easily plug the small hole afterwards.

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