This is a very simple biomass briquette press using a caulk gun a some PVC pipe. Read the full article: http://www.thediyworld.com/blog/?p=1411
A biomass briquette press is used to press scraps of burnable materials into briquettes which can be used for cooking or home heating.
Biomass briquettes are useful in areas where wood is rare but you have a source of other flammable materials such as paper, leaves, coconut hulls, sawdust or other materials.
You can compress these materials into a long burning briquette to be used as a fuel for home heating or cooking.
Read the article for full details.
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