Get VRML2 ~50K 
Runnerup: "ComputerAided Engineering"
magazine's 1998 VRML Contest. Results in June issue. Interactive Schmidt Parallel Offset Rotational Coupling Click red/green sphere to stop/start rotation. Click blue sphere to adjust offset of input and output shafts. 
Get VRML2 ~11K 
Interactive Rotating Universal Joint Clickhold up/down arrows to change input/output angles. Click red/green sphere to stop/start rotation. Clickhold blue sphere to reverse rotation. 
Get VRML2 ~125K 
Entry #2: "ComputerAided Engineering"
magazine's 1998 VRML Contest. Interactive Precision Miter/Bevel Cutter Hold leftmouse on + control panel icons above numbers (17) to activate associated labeled components. 1) Raise/lower entire unit to align horizontal laser with workpiece. 2) Tilt blade right/left about horizontal laser for bevel angle. 3) Slide blade in/out within cutting plane. 4) Move blade transversely to align cutting plane with horizontal laser. 5) Swing blade up/down within cutting plane. 6) Translate workpiece left/right to align cut edge with horizontal laser. 7) Rotate workpiece about vertical laser for miter angle. Click on end of motor to stop/start blade rotation. 
Get VRML2 ~3K 
Interactive Rotating Marbles Puzzle Initial state has 4 clusters of marbles matching the colors of + spin controls at each corner. The 4 quadrants are separated by horizontal and vertical cyan marbles. Spin each of the 4 intersecting circles to scramble and unscramble. 
Get VRML2 ~40K 
Interactive Octahedron Sphere Puzzle Initial state has 3 mutually perpendicular "equators"  each comprised of 4 edges. Red, green, yellow equators. Rotate blue faces to scramble and unscramble. 
Get VRML2 ~50K 
Interactive Tetrahedron Sphere Puzzle Seems solvable in 3 moves at most. 
Get VRML2 ~200K 
Prototype for Dodecahedron Sphere Puzzle 
Get VRML2 ~90K 
Spur and Bevel Gears 
Get VRML2 ~13K 
Get VRML2 ~25K

Get VRML2 ~62K 
Escher Knot Moving Along its Trefoil Path 