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This Instructable explains how to make real injection molded plastic parts using a simple hand-operated machine. I realize most of you reading this do...
a) Plug in the machine. b) Turn on the power switch. c) Adjust the thermostat to the desired temperature.
a) Place a mold in the machine. b) Make sure the sprue hole on top of the mold lines up exactly with the injection nozzle. c) Clamp the mold in place ...
Pour some plastic pellets into the injection tube. Wait until they melt (1-2 minutes).
Pull down on the handle with a quick, but steady motion. You will feel a solid resistance when the mold cavity is full. Hold the handle there for a fe...
Wait for the molten plastic to cool in the mold for a short while (usually 5-30 seconds depending on size and shape of part). Then, unclamp the mold ...
a) Remove the part from the mold. b) Cut off the sprue, and trim away any excess plastic (i.e. flash) there may be around the edges of your part. Th...
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