List of Non-Electronic Materials

• 1x2’ wood mounting base
• 2x4’’ wood beams (3 feet)
• ½” thick wood panel (for laser cutting)
• Sliding rail guide
• Thin plastic sheets 
• ⅜” bolts (2 inch, 3 inch)
• ⅜” washers and nuts
• 2½” screws
• Super glue
• Circular saw, band saw, clamp, drill, drill bits/spades

Assembly

The team used a laser cutter to create the links with the desired lengths and hole diameters. Link 2 was connected to the motor shaft directly by taking advantage of the non-symmetrical shape of the shaft to “grip” the link while turning. Links 2 and 3 were connected with the 2 inch bolt with washers and nuts to provide adjustability and reduced friction. The sliding block had the 3 inch bolt inserted into it such that the threads were facing upward. On these threads a nut was set to support the connection point of Link 3. The block was constrained by two wooden rails that only allowed a thin tolerance of 1/2 inch. Thin plastic sheets were glued to the block and wooden rails at the points of sliding contact to reduce friction. On one of these wooden rails, a sliding guide rail was screwed in place - parallel with the intended motion of the block. The guide rail’s sliding block was connected to the sliding block “C” using a thin piece of laser cut wood.