HOW – TO: Large scale mold making – Making the negative “tool”

HOW – TO: Large scale mold making – Making the negative “tool”

trebuchet03 sent in his lastest video on large scale mold making…

Making tools from the tools you already own… This almost sounds incestuous – almost.

This is the next phase of our fairing construction for the University of Central Florida’s 2007 Human Powered Vehicle. Here we will take a positive male mold and begin making a female negative “tool.” We call it a tool because it can be used to make many duplicate copies. This tool is in fact a negative female mold.

To reiterate, this whole project is daunting. However, each individual step is not too scary and within the capability of most people handy with a few simple power tools. On the other hand, the price tag is scary. For this half alone, we used 5 gallons of polyester resin (circa $130).

21 minute Video – Lots of Time Lapse (now with captioned instructions).

instructables : [Video] Large Scale Mold Making – Making the Negative “Tool” – Link.


  • HOW TO – Large scale mold making – Link.
  • Plastic you can mold in your home for DIY projects – Link.

From the pages of MAKE:
Make 510
How the pros replicate objects. MAKE 08 – Page 160. Subscribers–read this article now in your digital edition or get MAKE 08 @ the Maker store.

2 thoughts on “HOW – TO: Large scale mold making – Making the negative “tool”

  1. Fredex says:

    New tools are built with new ideas and the tools you already have. There is a direct line of descent from the first piece of chipped flint to the latest computer controlled milling machine.

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