When I was a kid and scout we cast the scout emblem in tin — naturally we had to do this again with my own troop.

I’m lucky to have a fellow scout leader who does casting professionally. I modelled the master in resin and he made the silicon moulds from it.

For the tin, I went to second-hand shops and gathered everything tin I could find to melt down. Ordered crucibles and pliers online. We melted the tin by putting the crucible in the fire, then the kids could do the pour into the mould, demould, and finish.

First real casting project — a success.

Master

Modeled in Blender, printed in resin as the master for the silicon mould.

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↓scout_emblem.blend↓scout_emblem.stl

Moulds

Silicon moulds made by my fellow scout leader from the resin master.

The Pour

We set up a practice station first — gloves, face masks, and pouring water into a PET bottle before anyone touched real tin. Once they had the motion down, they moved to the actual pour.

Done in small groups: two leaders, two kids at a time. Went smoothly.

Result

See also: Building the Foundry | Casting Part 2 — Belt Buckle