| reply to SparkChaser
Re: GravityLight: lighting for developing countries. I wonder how long these gravity lights are expected to last under daily usage. 20lbs of weight pulling on plastic gears just doesn't sound like a good combination. |
|
 SparkChaserPremium
join:2000-06-06
Downingtown, PA
kudos:3
 ·Verizon FiOS
| said by silbaco:I wonder how long these gravity lights are expected to last under daily usage. 20lbs of weight pulling on plastic gears just doesn't sound like a good combination.
Have you done much work with plastic mechanisms? |
|
 elios
join:2005-11-15
Springfield, MO | reply to silbaco
said by silbaco:I wonder how long these gravity lights are expected to last under daily usage. 20lbs of weight pulling on plastic gears just doesn't sound like a good combination.
the gears in my RC helis are plastic and run at MANY 1000s of RPM
as are the gears in some my aircraft servos which hold up to many lbs
i have no issue with the gears being plastic  |
|
