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Step 2Materials for building the plastic injector
To build the injector, which pushes the plastic into the mold, you will need to gather the following:
1. A hot melt glue gun. I got this from Dollar General Store for $3.00, and was the only thing I actually had to buy.
2. A small piece of copper pipe which acts as a plunger to push the plastic into the mold.
3. A cap from a plastic soda bottle. It is fastened onto the pipe to make it more comfortable to push, and to protect your hand from heat.
4. Car body putty (Bondo). I use this to hold the bottle cap to the pipe. I will also use it later for the molds.
5. Epoxy putty, you know, the stuff Bill Mays advertises on TV to hold stuff. This becomes the tip of the plunger and helps seal inside the glue gun element.
6. Vice grips to hold the heating element.
Tools: Hacksaw and Philips screwdriver
1. A hot melt glue gun. I got this from Dollar General Store for $3.00, and was the only thing I actually had to buy.
2. A small piece of copper pipe which acts as a plunger to push the plastic into the mold.
3. A cap from a plastic soda bottle. It is fastened onto the pipe to make it more comfortable to push, and to protect your hand from heat.
4. Car body putty (Bondo). I use this to hold the bottle cap to the pipe. I will also use it later for the molds.
5. Epoxy putty, you know, the stuff Bill Mays advertises on TV to hold stuff. This becomes the tip of the plunger and helps seal inside the glue gun element.
6. Vice grips to hold the heating element.
Tools: Hacksaw and Philips screwdriver
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