Picture of Wood Molds for Pewter Casting (I made it at TechShop)
With pewter's melting point being so low you can make molds out of lots of different materials. The following information will help you build a two part mold using a laser cutter and 1/4 inch thick wood. I used the laser cutter at my local TechShop. For more information on  TechShop look them up. http://www.techshop.ws

Step 1: Draw the design.

Picture of Draw the design.
The shape of the cast piece can be drawn in any drawing software as long as the software can export a DXF file. The DXF file can be read into Corel Draw for the laser cutting.
togo19192 years ago

Cool Instructabus!

As for the Tigers. I was in Comerica Park one time in 2000. Loved the freshly grilled onions on the hot dogs!
Haven't tried this with my cnc router yet, but after seeing the results here, I will have a go! Nice work.
TomCloss (author)  stringstretcher2 years ago
I want to cut a few with the ShopBot. Need to plan for the diameter of the cutter so it wouldn't work with this design.
PKM2 years ago
I like it! It's always nice to see "outside the box" thinking about more things you can make with laser cutters. I guess you're going to sand the piece to make it smoother, but it looks like it's picked up the wood grain from the plywood and that could be a cool effect if you wanted it to look like that.
TomCloss (author)  PKM2 years ago
Actually the texture is from the laser itself. This was a solid board not plywood. I wanted the texture. I haven't tried this yet, but I might get a smoother result by changing resolution when cutting the mold.
Do you have any photos of what the mold was able to produce?

Thanks, aO
TomCloss (author)  audreyobscura2 years ago
Sure. I changed the last image to show the mold with a newly cast piece. To finish the piece you need to cut the sprue off and sand any out any rough spots.
The molded piece looks so nice! Will we get to see the pour process also? Thanks for a great pewter instructable.
TomCloss (author)  DIY-Guy2 years ago
I didn't add the pouring process since the focus of this intractable was the making of the mold. I'll create another intractable on pouring pewter soon. There are several methods I'll admit I use a poor mans version with a hot plate and a modified salt shaker.
sounds great!
Do you have any photos of what the mold was able to produce?

Thanks, aO