Since November, 2005, I have been working on the design of this product. It has gone through multiple phases of prototyping, redesigning, testing and changes in dimensions and structural materials. In the early stages, a square tube was tested using wooden rods that were positioned perpendicular to one another. In other prototypes, internal baffles were used instead of rods. Eventually, the square tube was replaced with a round one and the positioning of the rods were reevaluated due to the dice occasionally getting stuck on their way down the tube. Finally, the helix configuration was tested and it worked perfectly.
In early versions, felt pads were used on the interior surface of the end caps as the landing areas. Although the felt worked fine initially, it was discovered that after thousands of "flips" the felt began to release some of its fibers, resulting in a tube that had lots of loose fibers inside. Additionally, using felt or any other material that was relatively smooth and flat resulted in an unacceptable number of cocked dice when the tube was flipped. It was determined that this was due to too much surface-to-surface contact between the dice and the landing area, preventing one die from being able to slide out of the way of the other die when contact was made between the dice.
The Meyer Dice Tube's "landing surface" was officially perfected when Velcro® hook material was installed. In examining this material, you will realize that there is very little surface-to-surface contact between the dice and the material due to its design. This allows the dice to easily slide or shift on the material, which virtually eliminates any cocked dice after a flip.
Although the Meyer Dice Tube was originally designed as a sealed tube for Backgammon players, it became apparent (through users' comments and further research) that a version of the tube with removable end caps was necessary. It was also discovered that the tube could be used for many other games, as well as for educators.
After 4 years of testing and redesigning, the Meyer Dice Tube was finally ready for patenting and production!
Then, after selling hundreds of the original version of the Meyer Dice Tube, Version 2 was developed, which replaced the acrylic rods with a continuous length of latex tubing which was "laced" through the tube, creating 13 rubber "rods".