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=== cutting the plastic ===
=== cutting the plastic ===


Use a sharp knife to cut the plastic.
Use a sharp knife to cut the plastic and melt the edges to prevent it from tearing.


== Useful material ==
== Useful material ==

Revision as of 14:37, 6 August 2007

Stef

Of course you can do a lot of different things with a smooth formed Plastic Bottle, I made a separate article on the subject.

Materials needed to make a smooth formed bottle

Light weight PET Bottle Template:Wikipedia p

Tools to make a smooth formed bottle

Big pan

Protective glasses (very important for safety)

Protective gloves (very important for safety)

Wear protection







How to make a smooth formed bottle

Unfolding the bottles

  1. Take the labels off the bottles.
  2. Put boiling water in the PET bottles.
  3. Tighten the screw cap on the PET bottles.
  4. Put the PET bottles in a pan, and heat up so the water in the PET bottles will steam.
  5. After a few seconds the heat and the steam will unfold the bottom of the PET bottles.

The bottle gets proximately 10% smaller


bottle material
bottle material



WARNING - Only steam the PET bottle for a few seconds, otherwise the screwcap will pop off and the bottle will fold together rendering it useless

Cool down the PET bottles until there is no pressure inside.


before after

Now you have a Smooth formed plastic bottle.

Plastic material

  • The bottle is smaller
  • The surface is smooth formed
  • The surface is easy to clean
  • The plastic material is thicker and stronger, This can have advantages, for some uses
Use_sharp_knife

cutting the plastic

Use a sharp knife to cut the plastic and melt the edges to prevent it from tearing.

Useful material

  • You can do a lot of thing with a smooth formed bottle such as:

-solar water disinfection

-protective lamp cap

-food plate


lamp reflector

-If you glue reflective material inside you can make a reflector for a camping lamp



3rd_world_arm_lamp

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