Gears and Gearing

The table below shows the single stage gearing possibilities using Didel or Falcon gears. The Didel gears are 0.3 mod (except for one pair of 0.2 mod gears) and the Falcons are 0.25 mod.. The Didel spur gears have lightening holes and a 12t gear on the front. The also offer a wide variety of gear sizes. The lightest gear set by far at 0.078g is the 5:1 gearing using the Didel 0.2 mod gears. Gear sets that were used in tests for this article are noted with a check mark.

The picture below shows a range of possible gearboxes for pagers. Didel Makes a 6.7:1 gearbox for the 6mm motor that allows the motor to be inserted or removed easily. More recently Falcon has introduced a 6.5:1 (PU04) gearbox which comes with the Didel 4.5 ohm motor glued in place. Falcon also sells their 5.25:1 (PU03) gearbox which comes with the 6x15mm Namiki motor. Also shown is a simple stick gearbox which takes very little time to construct and is simply the motor and an aluminum/nylon bearing tube glued to a stick. It is light and works well. At the far right is one of the laser cut gearboxes my friend Carl Martin made me which allowed easy swapping of motors. Carl also made gearboxes for both Didel and Falcon gears in a wide range of gear ratios not available in gearbox form from either manufacturer. Thanks again Carl!

Single stage gearbox possibilities in 6.7:1 and 6.5:1 gearing include, left to right: Didel, Falcon, simple stick, and Carl Martin laser cut.