Plastic for my 3d printer, and how long it lasts.

The 3d printer kit I ordered can print several types of plastic. The 2 that are currently frequently used are ABS and PLA. PLA is a biodegradable plastic made from corn starch (http://www.cupdepot.com/PLA-FAQ.htm). ABS is a plastic that is food safe and ok to use in aquariums and such. PLA is also food safe but being biodegradable I am unsure about its suitability in an aquarium.

Being that I have the laBOREtory I think it’s only suiting that I do an experiment. I’m going to test ABS and PLA with the liquids in the list below. I am unsure if I want to do this by printing small cups or by placing pieces of filaments in glass jars. Either way I’m going to test each of the following for compatibility with plastic and see how long it takes to dissolve.

  • coke
  • Mountain Dew
  • hot water
  • aceetone
  • isopropyl
  • salt water
  • sugar water
  • baking soda
  • bleach
  • lye
  • wd-40
  • milk
  • drain cleaner
  • gasoline
  • testors glue
  • lemon juice
  • Hydrogen Peroxide

 

I could just look up the solve the solvent had ability but that would be too easy. http://capolight.wordpress.com/2010/08/10/solvent-compatibility-and-plastics/

What am I missing?.

I was looking through ThingiVerse and came across a printable stencil set http:/…

I was looking through ThingiVerse and came across a printable stencil set http://www.thingiverse.com/thing:17346

This got me to thinking. By making a stencil that is something like 1/8th inch thick, you can make the bridges only 1/16 inch thick and when you use the stencil, face them away from the surface. The spray paint should overspray around the bridge, and you will get clean letters.

Additionally, you can print individual letters with puzzle edges so you can piece them together in any order you want and they will stay together. Or, you can make sets for commonly used words – like a brand name – and they can fit into a envelope for storage when not in use.

Block Letter Stencil by Lemon_Major – Thingiverse
Thingiverse is a universe of things. Download our files and build them with your lasercutter, 3D printer, or CNC.

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I'm playing with Dragon NaturallySpeaking which I got for my birthday and I needed…

I'm playing with Dragon NaturallySpeaking which I got for my birthday and I needed to get the new computer in order to use. So far it's pretty cool.
I just imported my blog into it so it knows all the weird words I say.

I'm actually dictating this post.

I guess it's easier than typing. It is pretty accurate so far. (Actually had a trouble with that last sentence :-)

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Upside down aquarium SUCCESS

I dug another aquarium out of a box, and tried to set it up as the upside down aquarium, successively.

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