Yes i wanted to make a system that could be just bolted on to off the shelf items so if/when the wheels the axles break i can just buy another- Also locating in the holes give a nice positive location so no twisting of the bracket!!
The pulley wheel is all one piece and will be held in place from the front face of the wheel with a hub retainer which i'm making today at dinner time!! I will be making some universal hub drive so i can mess with the final drive ratio ,again the beauty of is it I can use any of the Abec 11 flywheel- just change the pulley teeth to suit the wheel diameter.
With the 83mmm wheel and a 15/30 ratio i hope to do approx 30mph but be able to go up hills ,hence the dual drive -plus no one else has done dual drive!!! i am really not sure if it will start to pull one way!! we will see
beetbocks wrote:the actual radius motor bracket is 6mm thick 7075 alloy- they are connected to angle bracket same alloy- easy to make in 2 piece~!!
Spooky1 wrote:Ok, I have looked online but can't find a plate of 6mm 7075 to work with, but I have found some 6mm 5083 grade, seeing as your a CNC guru could you tell me if this is ok to use for my motor brackets? I don't want to buy shite metal!
Try http://www.smithmetal.com/ this is my supplier
I actually milled a cut off peice down to 6.5mm- you could use 6082 instead.6mm will be fine. I even think 5mm would have been ok but I like to make sure!!
If you are going to tig weld it though it will severely weaken the alloy, it really needs annealing (heat treating) afterwards.. Also bear in mind the filler rod you will be using in tig will not be 6082/7075.
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