The techniques are demonstrated by showing / describing how I built a 1.2 V NiCd AA battery powered pump which is chemically tolerant for use in circulating an acidic bath. I considered using ABS and PLA for their 3D Printed appeal, but the material would not have survived. Using a windshield washer motor was also considered but rejected since I have no way of knowing what material was used in its manufacture.
Although HDPE is notorious for its shrinkage when cooling, this instructable shows how it can be used to make something useful.
Step 1: Sourcing HDPE
- Removed stickers with Goo Gone
- Washed with Soap
- Dried Overnight
- Cut Continuous Square Sheets with Scissors
- Saved Handle with Utility Knife
- Cut Scraps into 1/4" (inch) Chips
If you want to reuse the leftover chips from step #6, try:
- molded mouthpiece for blowgun by lennyb
- Making Blocks out of HDPE milk jugs by mfoster
- How to recycle HDPE (milk bottles and caps) into usable sheet material by Atomic Shrimp
- Waste Plastic Injector by vkoudymov