Jeremy Baker wrote:HI. For anyone building anything I suggest looking at the www.surpluscenter.com catalog.
....but why stop there that place is a gold mine ,the things you can make with there what knots[o i forget most people buy the things to replace the things]another of my new fav places ive found is www.bgmicro.com[sorry for the links i spell like well lets just say im lucky to use letters in the right order when it comes to math}as for tooth count and pitch for a chain stop your losing before you get started,as mentioned above you wont be transferring that much torque[but before i put my foot in my mouth you have left out a few important specs.like what voltage are you after and at what rpm do you need to achieve this,the actual foot print you have to work with,and a few more i would consider,but i have a tendency to wander...] friction can present a few problems,but with enough room they can be over come,belts and pulleys have there own quirks too ... the name of the game is efficiency, and the best way to achieve that at first is simplicity and balance .consider the time you have exerted trying to get the spec sheets and chasing down the link count of the chain the width between the links ect.you could have set up a small tram sled mounted the genny added a friction wheel and been off making a charge,and as you did this the time you spent on the bike [i hear there could be plenty] would have allowed you to see and experience the pros and cons and envision a multitude of the what ifs and why nots......[WOW] my wife just pointed out that i sound like a jerk sorry,i was trying to get around to the efficiency example .the long and the short of it the stationary bike to charge a battery bank strait across the board is not efficient,but dont scrape the project on my point of view,broaden yours.instead of a battery bank plug into a direct use inverter,now this is going to sound funny but you can use one of the outlets to run a trickle charger,and another for a different want or need now one action is providing for two more, thats why the foot print is important to know because to make this happen with a smooth transition your going to want to add a transmittion [gear box even spell check didnt know what i meant ]to get more out of less and of course you will have to add a piece to make sure your getting an even charge with minimal surges,but after you get that in go back to the peddles and add weight to one side creating a cammed reaction so your input can be lessened after you get it started .....and now you can see how to mount a genny to your bike..... all you have to do really is be efficient....
Ferne Reid wrote:Jump away, Gail!
I have my batteries. Waiting on the other things to arrive.
Mongo brings up a good question ... why don't I just stick with DC for the lights and laptop? The short answer is that I eventually want to be able to produce enough solar power to keep some food cold, heat up the coffee, and run the mixer. I can't buy everything I need for that all at once, but I already have the inverter, so I might as well set it up now and then just add to the system as I'm able.