http://www.abssac.ltd.uk/Products/Rotary-products/108/Shaft_coupling_-_L_Jaw.html
Found an L-Jaw while shopping the local tractor supply store today and thought of this thread. Google L-Jaw.
Safe.
I want to build a trike, with the connection between the back front and wheels just like your 001 frame.
So, with say.. 90 lbs for batteries and my 180 lbs. would 3/4" tube with a wall thickness of .049" have enough strength?
Oh I'll use 1020 DOM tubing.
Thanks.
Your battery can show a full charge and also have greatly diminished capacity.
http://www.windsun.com/Batteries/Battery_FAQ.htm
Why not remove your controller then connect motor and batteries directly.
love your designs.