I play with different educational manipulatives for a living. (Visit www.weirdrichard.com). Over the years I have built different holiday themed models using all sorts of toys. To celebrate the earth, this instructable will describe how to create a model of the recycling symbol using fischertechnik elements! Building the symbol might get youngsters thinking about a greener way of life!
The universal recycling symbol is a well-recognized image used to designate recyclable materials. It is usually composed of three chasing arrows that form an unending loop. I am modelling a recycling symbol used by Taiwan. This symbol uses negative space to create arrows pointing outward.
Wikipedia's entry on recycling symbols:
Note: The CAD looking images were generated by LDraw/MLCAD and a fischertechnik elements library.
Step 1: Gather Your Parts
You will need to gather your elements. The fischertechnik elements are available from a range of kits available from ebay, Craig's List, or fischertechnik retailers.
Elements can be purchased individually from www.fischertechnik.com.
4 Angular Block 60 Degrees
8 Angular Block 30 degrees
2 Spring Cams
22 Building Block 30s
Step 2: Upper and Lower Sides
Step 3: Right and Left Sides
Construct the left and right sides of the symbol by creating two stacks of four Building Block 30s. Add a Spring Cam into the end slot of both stacks. Note the orientation of the blocks.
Step 4: Make the Arrows
Make three more arrows using these same parts.
Step 6: Put it All Together!
Slide the two side assemblies into the upper and lower assembly.