Hi Ralph
RonS here. I would send this to you in private mail, but I don't know how to do that. I asked Scott how to send drawings and pictures, I sent them somewhere but they never made it to this board. I want to tell you about the wheel I have been working on, I came up with a new linkage between weights that really works well. We have all been there with an idea that we knew would work and then spend time and money building it and have it "keel". I think I showed you my design or we talked about it last year when I was over at your shop. Still the same design but I keep refining it. I'm building mine on the dining room table, have my saw and drill set up there too. I have wheels and levers all over the house, boxes and boxes. I have neglected house maintenance. yard work etc. to build this wheel. I made a deal with the wife that if this one doesn't show at least a little movement I'll put it all away, for now anyway. I turn 65 in June and I really wanted to figure this out before I became an old man.
Anyway, I use a fat lazy horse to lift the weight, keep the horse in a corral so it doesn't keel the wheel. The horse doesn't even break a sweat to lift the weight at 11:00 from the axle to the rim. (no negative torque) then at 5:00 it lifts the weight almost instantly back to the axle. All the weights will be at the rim on the right side and near the axle on the left side (clockwise rotation). On test runs with the weights pinned to their locations it really wants to turn. I have all the levers cut out now, just need the time to assemble it. If I waited a week I might not have to write this note (another no turner), but it is more fun now thinking it will turn. The next time I'm in Stanfield, I'll call you and stop by and show you.
RonS
My last attempt
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ken_behrendt
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re: My last attempt
Ron...
If you lifting weights at the wheel's 11:00 and 5:00 positions, then there must be another weight that is dropping to accomplish this. Hopefully, the CG of the dropping weights is not located on the wheel's ascending side. That has been a problem that has disabled all of my previous attempts using secondary shifting weights and is the critical element that seems difficult to overcome.
Anyway, best of luck with your efforts. Personally, I would never promise that any particular design of mine was the last I would try if it failed. I find that shortly after a failure, I suddenly can come up with all sorts of possible new designs to remedy the situation. Of course, whether we want to accept it or not, each of us will, eventually, have to call it quits either because the frustration of continuing is too much to bear or because we've finally died...or, because someone else has solved the problem!
ken
If you lifting weights at the wheel's 11:00 and 5:00 positions, then there must be another weight that is dropping to accomplish this. Hopefully, the CG of the dropping weights is not located on the wheel's ascending side. That has been a problem that has disabled all of my previous attempts using secondary shifting weights and is the critical element that seems difficult to overcome.
Anyway, best of luck with your efforts. Personally, I would never promise that any particular design of mine was the last I would try if it failed. I find that shortly after a failure, I suddenly can come up with all sorts of possible new designs to remedy the situation. Of course, whether we want to accept it or not, each of us will, eventually, have to call it quits either because the frustration of continuing is too much to bear or because we've finally died...or, because someone else has solved the problem!
ken
On 7/6/06, I found, in any overbalanced gravity wheel with rotation rate, ω, axle to CG distance d, and CG dip angle φ, the average vertical velocity of its drive weights is downward and given by:
Vaver = -2(√2)πdωcosφ
Vaver = -2(√2)πdωcosφ
re: My last attempt
RonS,
Good to hear from you, it has been a while since I have seen you post.
So your turning 65 in June and believe you are becoming an old man. Thats a negative attitude in my books. Last month I celebrated my 66th and called it my second 33rd I am not as old as Jack Benny yet!
Will be interested in seeing your progress and thought you had my private E-mail address. Scott does not like us to post private addresses on the forum. Simply click on my name and open my profile and go to PM send me a short note with your address and i will reply by private mail including my address.
Better yet I will send it to you via the forum private mail.
Looking forward to your next visit to your daughter.
Regards
Ralph
Good to hear from you, it has been a while since I have seen you post.
So your turning 65 in June and believe you are becoming an old man. Thats a negative attitude in my books. Last month I celebrated my 66th and called it my second 33rd I am not as old as Jack Benny yet!
Will be interested in seeing your progress and thought you had my private E-mail address. Scott does not like us to post private addresses on the forum. Simply click on my name and open my profile and go to PM send me a short note with your address and i will reply by private mail including my address.
Better yet I will send it to you via the forum private mail.
Looking forward to your next visit to your daughter.
Regards
Ralph