Tire Molds

Here's a collection of tire molds so that you can get ideas about ways of creating your own. If you have a mold you'd like to share, send me the pictures and I'll post them here.

Split Mold

This is the split mold I created when I made the tires for Wedgy and Stinger. Bigger...

Split Mold

Another view. You can see the screws which hold it together and the rods which provide alignment. Bigger...

Split Mold Pieces

Here it is split apart. To make the mold, I flycut some delrin to get a nice smooth finsh. I then drilled and tapped the two corner holes for the screws in one piece and the clearance holes and countersink in the other piece. I then screwed the two pieces together, and drilled and reamed the alignment holes. By drilling and reaming the two pieces together I was ensuring that they matched each other. I then finshed the outside of the cube to square things up. I then mounted the whole thing on my rotary table and used an endmill to machine out the cavity. I then drilled the center hole. Take everything apart, and this is what you get. Bigger...

Steve Roberts' split mold

Steve contacted me and asked some questions about making a mold. I sent him some pictures of my split mold (above) and he came up with this. Bigger...

Clever Clamp

I thought that Steve's clamping mechanism is elegant for it's simplicity. Bigger...

Cover

The cover gives a smooth finish to the wheel (my split mold was open top). Bigger...

Ready for pouring

Everything assembled and ready for pouring. Bigger...

Opening the mold

Steve used "Por-a-Mold S-111 Soft", which has a milky white color. Bigger...

Mold and tire

Another picture of the mold and the tire. Bigger...

Finished tire

This is the finished tire. The hole gives access to the setscrew used to hold the hub onto the shaft. Bigger...

Mounted Tire

Tire mounted to the motor. Bigger...


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Copyright 2006 by Dave Hylands