Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
ewalker [2009/02/21 13:23]
gregg
ewalker [2014/05/16 12:35] (current)
Line 1: Line 1:
 ====== Overview ====== ====== Overview ======
-{{:​img_0143.jpg?​250 }} +{{:​img_0143.jpg?​150 }}{{ :​img_4744.jpg}} 
-I took a [[http://​www.sidewalkerusa.com/​old/​model_micro.htm|Sidewalker Micro]], added AirFree ​tires, and a brushless outrunner motor...and in doing so, turned this adult-sized kick-scooter into a viable primary vehicle for quickly zipping around short distances. +eWalker: **E**lectric Side**walker** Scooter 
-{{:​img_4744.jpg }}+ 
 +I took a [[http://​www.sidewalkerusa.com/​old/​model_micro.htm|Sidewalker Micro]], added airless ​tires, and a brushless outrunner motor...and in doing so, turned this adult-sized kick-scooter into a viable primary vehicle for quickly zipping around short distances. 
  
 ===== Power Assist Highlights ===== ===== Power Assist Highlights =====
Line 63: Line 65:
 {{  :​img_0142.jpg}} {{  :​img_0142.jpg}}
  
-===== Motor Pulley Discussion =====+===== Pulley Discussion ===== 
 + 
 +^ Stage ^ Ratio ^ Details ^  
 +| Motor/belt reduction | 5.45:1 | 11-tooth HTD --> 60-tooth HTD |  
 +| Chain/wheel reduction | 2.6:1 | 25-tooth #25 chain sprocket --> 65-tooth | 
 +| Chain/wheel reduction | 3.25:1 | 20-tooth #25 chain sprocket --> 65-tooth | 
 +| Chain/wheel reduction | 4.33:1 | 15-tooth #25 chain sprocket --> 65-tooth | 
 + 
 +At 8,000 RPM, the following top-speeds are possible (12.5" tire = 34.5" rollout): 
 +^ Belt Ratio ^ Chain Ratio ^ Final Ratio ^ Output RPM ^ Top Ground Speed ^ 
 +| 5.45:1 | 2.6:1 | 14.7:1 | 564.57 RPM | 18.45 MPH | 
 +| 5.45:1 | 3.25:1 | 17.7125:1 | 451.66 RPM | 14.756 MPH | 
 +| 5.45:1 | 4.33:1 | 23.599:1 | 338.997 RPM | 11.08 MPH |
  
-Currently I'm planning to use an 11-tooth HTD pulley, as the wheel itself has the freewheel setup I'd need. 
  
 ===== Engineering Discussions ===== ===== Engineering Discussions =====
ewalker.1235251391.txt.gz · Last modified: 2014/05/16 12:35 (external edit)
Back to top
CC Attribution-Noncommercial-Share Alike 3.0 Unported
chimeric.de = chi`s home Valid CSS Driven by DokuWiki do yourself a favour and use a real browser - get firefox!! Recent changes RSS feed Valid XHTML 1.0