View single post by Helmut
 Posted: Fri Feb 27th, 2015 02:35 pm
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Helmut



Joined: Sun Feb 17th, 2013
Location: Friedberg, Germany
Posts: 1132
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@mwiz
Your reasoning only holds true if you assume that there is no poor gearing, nor sloppy bearings, and a motor that is equally effective as a can motor. Only then you need e.g. 12Watts in any case. Therefore I said: " tackle the mechanics", because there lie endless possibilities of improvement. As an example, that R/C switcher I've shown:
http://freerails.com/view_post.php?post_id=57971
originally used 150mA@12V at full slip.
After improving the axle bearings, and changing the drive train it uses 54mA@3V. Pulling power has even slightly increased due to the absence of motor-induced vibration.


Last edited on Fri Feb 27th, 2015 02:36 pm by Helmut



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