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[tooljoe]

i was googleing for smt/d LED lights to use in my drill when somehow i stumbled upon this video and i learned something new about the technology (same applies to automotive tech)...

<a href="http://www.youtube.com/v/VcBzIhdSztY&amp;ap=%2526fmt%3D18&amp;rel=0" target="_blank">http://www.youtube.com/v/VcBzIhdSztY&amp;ap=%2526fmt%3D18&amp;rel=0</a>

interesting how the gears reduce the speed of the motor... which makes sense since a DC motor spins upwards of 10,000 RPM while a fast drills output RPMs are around 2,500-3,000 RPM. and here i was thinking that a faster RPM motor would give me better results... i was actually going to look for a faster spinning motor for my drill to install... actually for a brushless one with the same (or close enough) RPMs and torque... anyways...

just sharing.  

[tooljoe]

here is another interesting video about planetary gears, transmissions.

<a href="http://www.youtube.com/v/a1JAWoAvK-E&amp;ap=%2526fmt%3D18&amp;rel=0" target="_blank">http://www.youtube.com/v/a1JAWoAvK-E&amp;ap=%2526fmt%3D18&amp;rel=0</a>

[tooljoe]

i also found these videos interesting (part 1 and 2)... particularly the planetary part at the end of video one at around 7:40...

<a href="http://www.youtube.com/v/4F0bZBjPYtg&amp;ap=%2526fmt%3D18&amp;rel=0" target="_blank">http://www.youtube.com/v/4F0bZBjPYtg&amp;ap=%2526fmt%3D18&amp;rel=0</a>

<a href="http://www.youtube.com/v/m49WkDeCAKQ&amp;ap=%2526fmt%3D18&amp;rel=0" target="_blank">http://www.youtube.com/v/m49WkDeCAKQ&amp;ap=%2526fmt%3D18&amp;rel=0</a>