[LloydB]

I have some ideals about building my own motor for a ev even though it is popular just to fork out the cash and buy one. I wanted to run my thoughts out to the public for a perspective other than my own on the subject. Here is what I was thinking about doing.

I was thinking about using sheet metal and make a plate diagram. Then cut a bunch of plates out using that diagram and sand the sides down on the plates to make ever thing nice and neat. Then taking those plates and stacking them to make my rotor. Then spot welding, braze solder what have you to stick all the plates together. Then wind the coils around the rotor.

Using sheet metal again and a spot welder, braze, solder what have you I would then make a stator and wind coils around that. I dont want to use magnets because I want this to be able to run at higher tempatures.

My only problem is I have to finish the design aspect of this and how all this would fit together. I want to be able to use more than one motor on the ev because I need to use a little more power.

I have some other ideals but am only talking about the motor for now. Does anyone know how I would go about completing a design for this mechanically and how to calulate the amps, torq, and voltage on this thing so I would now what size to of parts to use?

On the rest of this I would use basic metal working and basic sheet metal construction. Im not use to working with that kind of stuff but I would have to learn along way. Hopefully saving some money in the process.

 

[LloydB]

Well I,ve done the university thing. I went to devry 2 years and needed 1 year to finish the engeering degree. They want 45000 for me to finish. Im going to hold off for now. I went to a votec school for 2 years before devry and got a certific in electronics. I also went to UALR for 2 years in little rock and ATU for 2 years in russellville. I also worked worked for a company for a time and worked on the assembly line making ac motors and testing them. But do I feel this makes me an expert. Well no because I never set down and actually designed them or tried to until now. But, my wish was to have something everyone could do not an expert. I still dont believe it is necessary to spend money in excess buying parts because I have a belief that knowledge should be free. But I live in a capitalist society so knowledge is not free sadly to say. I do know one thing about motors and that is the work needs to be precise and it should have a design. Sure, it may not be all that great. I may need to build two or three of them and put them on the same shaft.

On batteries I was thinking about going with a home built sealed aluminium air battery and yes, it would have a generator on board just in case. Its not that I dont think it can work it just takes the right design to work with what a person would work with out of their home. That is why I went with metal plates cut and stacked then welded together. The shaft and bearings should be bought though. If anything at least by the bearings. Some other parts can be bought to like the brushes ect... Not that those would pose to much a problem but the cost for those would not be near as much as buying an entire prebuilt motor. The casing would be made out of sheet metal. Maybe more than one case also welded together to get the thinkness. It would have to withstand certain stresses and heat. I would not use any magnets if mine just coils. Wish me luck. I have some equations to try to go over.