Image search results - "faux wheel"
Sentry_Droid_Faux_Balls.jpg
 43 views
Sentry_Droid_Lego_Greebles_28229.JPG
 Omniwheel, Lego Greebles and Faux Wheels of Sentry Droid45 views
Sphere_Sizing.png
 Attempting to determine sphere size3 viewsCopied faux wheel ball and overlaid on Lego brick section. Lego studs are 8mm wide, I count a hair more than 11, except that the right edge that I attempted to align to is a stud behind the others, so it might actually be a hair more than that. 11*8 == 88 - now I have to decide if the error means it's closer to 88.9 or 95.3, which are the sizes available from http://www.ema-models.co.uk/index.php/abs-tubes-fittings/hemispherical-domes.html?limit=all
   
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