Post Reply 
 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Macropede studies
05-24-2014, 11:00 PM
Post: #7
RE: Macropede studies
(05-24-2014 04:41 PM)sho Wrote:  If length of leg become twice, the speed become twice, too.
Would be nice to compare this. Macropedes leg is 40 mm from hip joint to crank and 39 mm from crank to touch point. So this is about a 1:2 ratio. The crank radius is 5.2 mm = 10.4 mm rotating diameter.

Because of the multiple cranks I think we can postulate the legs movement equal to a wheel movement? With the 1:2 ratio this will become a wheel radius of 2x 5.2 mm = 10.4 mm. The circumference of a wheel is 2 * pi * radius = 2 * 3.141 * 10,4 = 65,3 mm total movement with one revolution of all legs. Because we have no total friction and no permanent touch down of the legs (other than with a wheel) we always will have some slip too. - Sho what is your experience about this?

(05-24-2014 04:41 PM)sho Wrote:  But required torque become twice, too.
Hopefully I have not that much loss in my gear like in yours. I will measure the wattage and tell you tonight.

Rainer
http://www.steamboating.de
Visit this user's website Find all posts by this user
Quote this message in a reply
Post Reply 


Messages In This Thread
Macropede studies - steamboat - 05-15-2014, 08:43 AM
RE: Macropede studies - jmccartney - 05-15-2014, 09:13 AM
RE: Macropede studies - steamboat - 05-15-2014, 05:09 PM
RE: Macropede studies - jmccartney - 05-15-2014, 11:03 PM
First run of Macropede leg set - steamboat - 05-24-2014, 04:16 PM
RE: Macropede studies - sho - 05-24-2014, 04:41 PM
RE: Macropede studies - steamboat - 05-24-2014 11:00 PM
Current - torque - steamboat - 05-26-2014, 02:33 AM
A dream comes true! - steamboat - 05-26-2014, 07:10 AM
RE: Macropede studies - jmccartney - 05-28-2014, 06:14 AM
RE: Macropede studies - steamboat - 05-28-2014, 06:50 PM
RE: Macropede studies - jmccartney - 05-29-2014, 02:08 AM
RE: Macropede studies - steamboat - 05-29-2014, 04:17 AM
RE: Macropede studies - steamboat - 05-29-2014, 05:58 AM
All gears in mesh - steamboat - 05-30-2014, 01:18 AM
All legs in place - steamboat - 05-30-2014, 03:48 AM
RE: Macropede studies - jmccartney - 05-30-2014, 04:47 AM
RE: Macropede studies - steamboat - 05-30-2014, 10:59 AM
RE: Macropede studies - jmccartney - 05-30-2014, 11:29 AM
RE: Macropede studies - steamboat - 05-31-2014, 01:51 AM
RE: Macropede studies - sho - 05-31-2014, 04:48 AM
RE: Macropede studies - steamboat - 05-31-2014, 06:11 AM
Result - steamboat - 05-31-2014, 07:34 AM
It's running - steamboat - 05-31-2014, 08:37 PM
RE: Macropede studies - sho - 06-01-2014, 01:08 AM
RE: Macropede studies - steamboat - 06-01-2014, 04:31 AM
RE: Macropede studies - steamboat - 06-01-2014, 07:17 AM
RE: Macropede studies - steamboat - 06-02-2014, 02:49 AM
Shell for Macropede - steamboat - 06-02-2014, 04:59 AM
RE: Macropede studies - jmccartney - 06-02-2014, 06:46 AM
RE: Macropede shell studies - steamboat - 06-07-2014, 06:03 AM
next step - steamboat - 06-09-2014, 08:31 AM
Macropede R2 - steamboat - 07-02-2014, 07:11 AM
RE: Macropede studies - steamboat - 07-02-2014, 08:51 AM

Forum Jump:


User(s) browsing this thread: 1 Guest(s)