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TAN #197: We CAN be polite, TANk u very much! (Page 27)
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 2013-03-27 3:19 PM in reply to: #4676949 |
Champion  11989      Philly 'burbs |  Subject: RE: TAN #197: We CAN be polite, TANk u very much!tech_geezer - 2013-03-27 4:01 PM I think I solved a big part of my wheel truing problem today. I figured out the solution to the rim bending problem. I had to take the Euler Bernoulli equations for a straight beam and convert it to a circular beam. This was the hard part. It turns out to be very simple. I would have expected that someone had solved it before but I couldn't find it. I will put the solution on my blog savetheneurons.blogspot.com when I get it typed up. I am working on the spoke model now. The equations for the spoke tension are easy. The vector math to apply the load in the correct direction is tedious but not hard. It is just a lot of trig. The last step is hooking the two parts together and putting it in the form of a vector equation. From that point on, it is computer programming. The actual calculation of the number of spoke turns to bring the rim into true looks like it will be a simple least squares minimization. It was a good birthday. um..... bewbs. |
| 2013-03-27 3:42 PM in reply to: #4676978 |
Elite 4344 | Subject: RE: TAN #197: We CAN be polite, TANk u very much! mrbbrad - 2013-03-27 4:19 PM tech_geezer - 2013-03-27 4:01 PM I think I solved a big part of my wheel truing problem today. I figured out the solution to the rim bending problem. I had to take the Euler Bernoulli equations for a straight beam and convert it to a circular beam. This was the hard part. It turns out to be very simple. I would have expected that someone had solved it before but I couldn't find it. I will put the solution on my blog savetheneurons.blogspot.com when I get it typed up. I am working on the spoke model now. The equations for the spoke tension are easy. The vector math to apply the load in the correct direction is tedious but not hard. It is just a lot of trig. The last step is hooking the two parts together and putting it in the form of a vector equation. From that point on, it is computer programming. The actual calculation of the number of spoke turns to bring the rim into true looks like it will be a simple least squares minimization. It was a good birthday. um..... bewbs. I could have mentioned spoke nipples. |
| 2013-03-27 3:48 PM in reply to: #4677002 |
Champion 11989 Philly 'burbs | Subject: RE: TAN #197: We CAN be polite, TANk u very much! tech_geezer - 2013-03-27 4:42 PM mrbbrad - 2013-03-27 4:19 PM tech_geezer - 2013-03-27 4:01 PM I think I solved a big part of my wheel truing problem today. I figured out the solution to the rim bending problem. I had to take the Euler Bernoulli equations for a straight beam and convert it to a circular beam. This was the hard part. It turns out to be very simple. I would have expected that someone had solved it before but I couldn't find it. I will put the solution on my blog savetheneurons.blogspot.com when I get it typed up. I am working on the spoke model now. The equations for the spoke tension are easy. The vector math to apply the load in the correct direction is tedious but not hard. It is just a lot of trig. The last step is hooking the two parts together and putting it in the form of a vector equation. From that point on, it is computer programming. The actual calculation of the number of spoke turns to bring the rim into true looks like it will be a simple least squares minimization. It was a good birthday. um..... bewbs. I could have mentioned spoke nipples. Now you're talking. I rebuilt some wheels once. Well, I changed out all the spokes. Borrowed a truing stand from a buddy and had the sucker spinning really well. Never considered dish. Doh! The guy at the LBS who fixed it for me said I did a decent job for an amateur. |
| 2013-03-27 4:02 PM in reply to: #4677010 |
Elite 4344 | Subject: RE: TAN #197: We CAN be polite, TANk u very much! mrbbrad - 2013-03-27 4:48 PM tech_geezer - 2013-03-27 4:42 PM mrbbrad - 2013-03-27 4:19 PM tech_geezer - 2013-03-27 4:01 PM I think I solved a big part of my wheel truing problem today. I figured out the solution to the rim bending problem. I had to take the Euler Bernoulli equations for a straight beam and convert it to a circular beam. This was the hard part. It turns out to be very simple. I would have expected that someone had solved it before but I couldn't find it. I will put the solution on my blog savetheneurons.blogspot.com when I get it typed up. I am working on the spoke model now. The equations for the spoke tension are easy. The vector math to apply the load in the correct direction is tedious but not hard. It is just a lot of trig. The last step is hooking the two parts together and putting it in the form of a vector equation. From that point on, it is computer programming. The actual calculation of the number of spoke turns to bring the rim into true looks like it will be a simple least squares minimization. It was a good birthday. um..... bewbs. I could have mentioned spoke nipples. Now you're talking. I rebuilt some wheels once. Well, I changed out all the spokes. Borrowed a truing stand from a buddy and had the sucker spinning really well. Never considered dish. Doh! The guy at the LBS who fixed it for me said I did a decent job for an amateur. The reason I am trying to figure this out is to help amateurs like me build a true, equally tensioned wheel. I don't have the experience to know how much to turn each spoke to fix a deflection and equalize the tension. A pro develops an "algorithm" by experience. I am trying to replace wheel building experience with math, engineering, and computer programming. Time will tell if it actually is helpful. It's just a fun problem right now. I figure I will make it into an iphone app and sell copies to all the rookies who wants to true their own wheels (only partly joking). I will be rich! (now I'm joking.) An app would be a good way to distribute the algorithm so that it does not depend on having other software. |
| 2013-03-27 4:21 PM in reply to: #4676950 |
Master 2504 Southwest Iowa | Subject: RE: TAN #197: We CAN be polite, TANk u very much! mr2tony - 2013-03-27 3:02 PM Big Appa - 2013-03-27 2:58 PM He who poops amongst the rows? mrbbrad - 2013-03-27 12:54 PM Iowaman - 2013-03-27 3:52 PM mrbbrad - 2013-03-27 2:51 PM Big Appa - 2013-03-27 3:50 PM mr2tony - 2013-03-27 12:48 PM Iowaman - 2013-03-27 2:33 PM In Des Moines? I didnt know they had shootings in Des Moines! 3 shootings today here plus one homicide. Must be the temps finally made it above freezing so people are trigger happy. Job security. What else is there to do in Iowa? Play baseball in cornfields If you build it, they will come. Just make sure there's a bathroom. If they can't go, they won't come. That is what the corn field is for. We actually jumped off the RAGBRAI route to go to field of dreams. Along with about 1000 others. Yes there were many walking into the corn fields. Too bad the people from Florida kept walking into the bean fields and wondering why they could be seen. :-) |
| 2013-03-27 4:40 PM in reply to: #4677051 |
Champion 34263 Chicago | Subject: RE: TAN #197: We CAN be polite, TANk u very much! flip18436572 - 2013-03-27 4:21 PM mr2tony - 2013-03-27 3:02 PM Big Appa - 2013-03-27 2:58 PM He who poops amongst the rows? mrbbrad - 2013-03-27 12:54 PM Iowaman - 2013-03-27 3:52 PM mrbbrad - 2013-03-27 2:51 PM Big Appa - 2013-03-27 3:50 PM mr2tony - 2013-03-27 12:48 PM Iowaman - 2013-03-27 2:33 PM In Des Moines? I didnt know they had shootings in Des Moines! 3 shootings today here plus one homicide. Must be the temps finally made it above freezing so people are trigger happy. Job security. What else is there to do in Iowa? Play baseball in cornfields If you build it, they will come. Just make sure there's a bathroom. If they can't go, they won't come. That is what the corn field is for. We actually jumped off the RAGBRAI route to go to field of dreams. Along with about 1000 others. Yes there were many walking into the corn fields. Too bad the people from Florida kept walking into the bean fields and wondering why they could be seen. :-) City folk ... it's fun to take them snipe hunting. |
| 2013-03-27 5:09 PM in reply to: #4677051 |
Champion 18680 Lost in the Luminiferous Aether | Subject: RE: TAN #197: We CAN be polite, TANk u very much! flip18436572 - 2013-03-27 5:21 PM mr2tony - 2013-03-27 3:02 PM Big Appa - 2013-03-27 2:58 PM He who poops amongst the rows? mrbbrad - 2013-03-27 12:54 PM Iowaman - 2013-03-27 3:52 PM mrbbrad - 2013-03-27 2:51 PM Big Appa - 2013-03-27 3:50 PM mr2tony - 2013-03-27 12:48 PM Iowaman - 2013-03-27 2:33 PM In Des Moines? I didnt know they had shootings in Des Moines! 3 shootings today here plus one homicide. Must be the temps finally made it above freezing so people are trigger happy. Job security. What else is there to do in Iowa? Play baseball in cornfields If you build it, they will come. Just make sure there's a bathroom. If they can't go, they won't come. That is what the corn field is for. We actually jumped off the RAGBRAI route to go to field of dreams. Along with about 1000 others. Yes there were many walking into the corn fields. Too bad the people from Florida kept walking into the bean fields and wondering why they could be seen. :-) I heard that!!! Just to be clear I am a transplant to FL. Just finished up my second interview. Both of them went very well I think. |
| 2013-03-27 5:53 PM in reply to: #4677095 |
Elite 5145 Cleveland | Subject: RE: TAN #197: We CAN be polite, TANk u very much! trinnas - 2013-03-27 6:09 PM flip18436572 - 2013-03-27 5:21 PM mr2tony - 2013-03-27 3:02 PM Big Appa - 2013-03-27 2:58 PM He who poops amongst the rows? mrbbrad - 2013-03-27 12:54 PM Iowaman - 2013-03-27 3:52 PM mrbbrad - 2013-03-27 2:51 PM Big Appa - 2013-03-27 3:50 PM mr2tony - 2013-03-27 12:48 PM Iowaman - 2013-03-27 2:33 PM In Des Moines? I didnt know they had shootings in Des Moines! 3 shootings today here plus one homicide. Must be the temps finally made it above freezing so people are trigger happy. Job security. What else is there to do in Iowa? Play baseball in cornfields If you build it, they will come. Just make sure there's a bathroom. If they can't go, they won't come. That is what the corn field is for. We actually jumped off the RAGBRAI route to go to field of dreams. Along with about 1000 others. Yes there were many walking into the corn fields. Too bad the people from Florida kept walking into the bean fields and wondering why they could be seen. :-) I heard that!!! Just to be clear I am a transplant to FL. Just finished up my second interview. Both of them went very well I think.
Cool! Sending good vibes your way. |
| 2013-03-27 5:57 PM in reply to: #4677033 |
Champion 16151 Checkin' out the podium girls | Subject: RE: TAN #197: We CAN be polite, TANk u very much! tech_geezer - 2013-03-27 5:02 PM mrbbrad - 2013-03-27 4:48 PM tech_geezer - 2013-03-27 4:42 PM mrbbrad - 2013-03-27 4:19 PM tech_geezer - 2013-03-27 4:01 PM I think I solved a big part of my wheel truing problem today. I figured out the solution to the rim bending problem. I had to take the Euler Bernoulli equations for a straight beam and convert it to a circular beam. This was the hard part. It turns out to be very simple. I would have expected that someone had solved it before but I couldn't find it. I will put the solution on my blog savetheneurons.blogspot.com when I get it typed up. I am working on the spoke model now. The equations for the spoke tension are easy. The vector math to apply the load in the correct direction is tedious but not hard. It is just a lot of trig. The last step is hooking the two parts together and putting it in the form of a vector equation. From that point on, it is computer programming. The actual calculation of the number of spoke turns to bring the rim into true looks like it will be a simple least squares minimization. It was a good birthday. um..... bewbs. I could have mentioned spoke nipples. Now you're talking. I rebuilt some wheels once. Well, I changed out all the spokes. Borrowed a truing stand from a buddy and had the sucker spinning really well. Never considered dish. Doh! The guy at the LBS who fixed it for me said I did a decent job for an amateur. The reason I am trying to figure this out is to help amateurs like me build a true, equally tensioned wheel. I don't have the experience to know how much to turn each spoke to fix a deflection and equalize the tension. A pro develops an "algorithm" by experience. I am trying to replace wheel building experience with math, engineering, and computer programming. Time will tell if it actually is helpful. It's just a fun problem right now. I figure I will make it into an iphone app and sell copies to all the rookies who wants to true their own wheels (only partly joking). I will be rich! (now I'm joking.) An app would be a good way to distribute the algorithm so that it does not depend on having other software. I'm skeptical. I agree it should be do-able, but it wouldn't work with used hubs (rebuilds) as the holes elongate under use. Spokes aren't uniform in the threaded depths and some have longer and shorter threaded portions. Threads have different resistances to turning, hence, some will wind up along the central axis and others won't. You also need to stress relieve periodically through the tensioning process by pushing down on the rim while the hub is on the floor. Flip the wheel over and relieve the other side. Even machine built wheels manufactured at QBP are hand finished. They're also inferior to a true hand build dne by feel. It'll come down to feel in the end. |
| 2013-03-27 5:58 PM in reply to: #4677122 |
Champion 16151 Checkin' out the podium girls | Subject: RE: TAN #197: We CAN be polite, TANk u very much! cgregg - 2013-03-27 6:53 PM trinnas - 2013-03-27 6:09 PM flip18436572 - 2013-03-27 5:21 PM mr2tony - 2013-03-27 3:02 PM Big Appa - 2013-03-27 2:58 PM He who poops amongst the rows? mrbbrad - 2013-03-27 12:54 PM Iowaman - 2013-03-27 3:52 PM mrbbrad - 2013-03-27 2:51 PM Big Appa - 2013-03-27 3:50 PM mr2tony - 2013-03-27 12:48 PM Iowaman - 2013-03-27 2:33 PM In Des Moines? I didnt know they had shootings in Des Moines! 3 shootings today here plus one homicide. Must be the temps finally made it above freezing so people are trigger happy. Job security. What else is there to do in Iowa? Play baseball in cornfields If you build it, they will come. Just make sure there's a bathroom. If they can't go, they won't come. That is what the corn field is for. We actually jumped off the RAGBRAI route to go to field of dreams. Along with about 1000 others. Yes there were many walking into the corn fields. Too bad the people from Florida kept walking into the bean fields and wondering why they could be seen. :-) I heard that!!! Just to be clear I am a transplant to FL. Just finished up my second interview. Both of them went very well I think.
Cool! Sending good vibes your way. Mine did as well. Hopeful is time it goes my way. |
| 2013-03-27 7:02 PM in reply to: #4676938 |
Champion 16151 Checkin' out the podium girls | Subject: RE: TAN #197: We CAN be polite, TANk u very much! Iowaman - 2013-03-27 3:52 PM Big Appa - 2013-03-27 2:50 PM mr2tony - 2013-03-27 12:48 PM Iowaman - 2013-03-27 2:33 PM In Des Moines? I didnt know they had shootings in Des Moines! 3 shootings today here plus one homicide. Must be the temps finally made it above freezing so people are trigger happy. Job security. What else is there to do in Iowa? No kidden. Pick corn, shovel snow and play wanna be. man vs. Food is in Des Moines. Bacon wrapped tater tots? Count me in! |
| 2013-03-27 7:06 PM in reply to: #4677125 |
Elite 5145 Cleveland | Subject: RE: TAN #197: We CAN be polite, TANk u very much! pitt83 - 2013-03-27 6:58 PM cgregg - 2013-03-27 6:53 PM Mine did as well. Hopeful is time it goes my way.trinnas - 2013-03-27 6:09 PM flip18436572 - 2013-03-27 5:21 PM mr2tony - 2013-03-27 3:02 PM Big Appa - 2013-03-27 2:58 PM He who poops amongst the rows? mrbbrad - 2013-03-27 12:54 PM Iowaman - 2013-03-27 3:52 PM mrbbrad - 2013-03-27 2:51 PM Big Appa - 2013-03-27 3:50 PM mr2tony - 2013-03-27 12:48 PM Iowaman - 2013-03-27 2:33 PM In Des Moines? I didnt know they had shootings in Des Moines! 3 shootings today here plus one homicide. Must be the temps finally made it above freezing so people are trigger happy. Job security. What else is there to do in Iowa? Play baseball in cornfields If you build it, they will come. Just make sure there's a bathroom. If they can't go, they won't come. That is what the corn field is for. We actually jumped off the RAGBRAI route to go to field of dreams. Along with about 1000 others. Yes there were many walking into the corn fields. Too bad the people from Florida kept walking into the bean fields and wondering why they could be seen. :-) I heard that!!! Just to be clear I am a transplant to FL. Just finished up my second interview. Both of them went very well I think.
Cool! Sending good vibes your way.
Good news all around, then! Hope it works out for ya, Dave. |
| 2013-03-27 7:23 PM in reply to: #4669196 |
Elite 2634 in front of my computer duh! | Subject: RE: TAN #197: We CAN be polite, TANk u very much! Hi tan how is everyone? Happy Hump Day! |
| 2013-03-27 9:15 PM in reply to: #4677125 |
Champion 18680 Lost in the Luminiferous Aether | Subject: RE: TAN #197: We CAN be polite, TANk u very much! pitt83 - 2013-03-27 6:58 PM cgregg - 2013-03-27 6:53 PM Mine did as well. Hopeful is time it goes my way.trinnas - 2013-03-27 6:09 PM flip18436572 - 2013-03-27 5:21 PM mr2tony - 2013-03-27 3:02 PM Big Appa - 2013-03-27 2:58 PM He who poops amongst the rows? mrbbrad - 2013-03-27 12:54 PM Iowaman - 2013-03-27 3:52 PM mrbbrad - 2013-03-27 2:51 PM Big Appa - 2013-03-27 3:50 PM mr2tony - 2013-03-27 12:48 PM Iowaman - 2013-03-27 2:33 PM In Des Moines? I didnt know they had shootings in Des Moines! 3 shootings today here plus one homicide. Must be the temps finally made it above freezing so people are trigger happy. Job security. What else is there to do in Iowa? Play baseball in cornfields If you build it, they will come. Just make sure there's a bathroom. If they can't go, they won't come. That is what the corn field is for. We actually jumped off the RAGBRAI route to go to field of dreams. Along with about 1000 others. Yes there were many walking into the corn fields. Too bad the people from Florida kept walking into the bean fields and wondering why they could be seen. :-) I heard that!!! Just to be clear I am a transplant to FL. Just finished up my second interview. Both of them went very well I think.
Cool! Sending good vibes your way. Awesome!! Good luck! |
| 2013-03-27 9:41 PM in reply to: #4677250 |
Pro 4838 | Subject: RE: TAN #197: We CAN be polite, TANk u very much! trinnas - 2013-03-27 9:15 PM pitt83 - 2013-03-27 6:58 PM cgregg - 2013-03-27 6:53 PM Mine did as well. Hopeful is time it goes my way.trinnas - 2013-03-27 6:09 PM flip18436572 - 2013-03-27 5:21 PM mr2tony - 2013-03-27 3:02 PM Big Appa - 2013-03-27 2:58 PM He who poops amongst the rows? mrbbrad - 2013-03-27 12:54 PM Iowaman - 2013-03-27 3:52 PM mrbbrad - 2013-03-27 2:51 PM Big Appa - 2013-03-27 3:50 PM mr2tony - 2013-03-27 12:48 PM Iowaman - 2013-03-27 2:33 PM In Des Moines? I didnt know they had shootings in Des Moines! 3 shootings today here plus one homicide. Must be the temps finally made it above freezing so people are trigger happy. Job security. What else is there to do in Iowa? Play baseball in cornfields If you build it, they will come. Just make sure there's a bathroom. If they can't go, they won't come. That is what the corn field is for. We actually jumped off the RAGBRAI route to go to field of dreams. Along with about 1000 others. Yes there were many walking into the corn fields. Too bad the people from Florida kept walking into the bean fields and wondering why they could be seen. :-) I heard that!!! Just to be clear I am a transplant to FL. Just finished up my second interview. Both of them went very well I think.
Cool! Sending good vibes your way. Awesome!! Good luck! Best of luck to all the TANners looking for a new job. |
| 2013-03-28 6:08 AM in reply to: #4677095 |
Master 2504 Southwest Iowa | Subject: RE: TAN #197: We CAN be polite, TANk u very much! trinnas - 2013-03-27 5:09 PM flip18436572 - 2013-03-27 5:21 PM mr2tony - 2013-03-27 3:02 PM Big Appa - 2013-03-27 2:58 PM He who poops amongst the rows? mrbbrad - 2013-03-27 12:54 PM Iowaman - 2013-03-27 3:52 PM mrbbrad - 2013-03-27 2:51 PM Big Appa - 2013-03-27 3:50 PM mr2tony - 2013-03-27 12:48 PM Iowaman - 2013-03-27 2:33 PM In Des Moines? I didnt know they had shootings in Des Moines! 3 shootings today here plus one homicide. Must be the temps finally made it above freezing so people are trigger happy. Job security. What else is there to do in Iowa? Play baseball in cornfields If you build it, they will come. Just make sure there's a bathroom. If they can't go, they won't come. That is what the corn field is for. We actually jumped off the RAGBRAI route to go to field of dreams. Along with about 1000 others. Yes there were many walking into the corn fields. Too bad the people from Florida kept walking into the bean fields and wondering why they could be seen. :-) I heard that!!! Just to be clear I am a transplant to FL. Just finished up my second interview. Both of them went very well I think. :-) Seriously Kate, as we rode up on them coming out of the bean field we asked where they were from and Florida was their answer. I am sure there were many others doing the same thing, it was amazing how many cornfields were used during RAGBRAI for multiple uses, when some of the distances between towns is only 7 miles. |
| 2013-03-28 6:09 AM in reply to: #4669196 |
Master 2504 Southwest Iowa | Subject: RE: TAN #197: We CAN be polite, TANk u very much! MOrning TAN!!! It is Thursday, correct??? Feels like an overtime Saturday already.
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| 2013-03-28 7:30 AM in reply to: #4669196 |
Champion 17756 SoCal | Subject: RE: TAN #197: We CAN be polite, TANk u very much! Good morning TAN |
| 2013-03-28 7:32 AM in reply to: #4669196 |
Champion 14571 the alamo city, Texas | Subject: RE: TAN #197: We CAN be polite, TANk u very much! |
| 2013-03-28 7:40 AM in reply to: #4677490 |
Champion 17756 SoCal | Subject: RE: TAN #197: We CAN be polite, TANk u very much! mehaner - 2013-03-28 5:32 AM dudes, i totally forgot i have a race next week. ruh roh eff it you can do it Marilyn!! |
| 2013-03-28 7:42 AM in reply to: #4677490 |
Master 2504 Southwest Iowa | Subject: RE: TAN #197: We CAN be polite, TANk u very much! mehaner - 2013-03-28 7:32 AM dudes, i totally forgot i have a race next week. ruh roh Good luck at your event!!! Remember you are 27 and can do anything, right!!! |
| 2013-03-28 7:50 AM in reply to: #4677490 |
Champion 18680 Lost in the Luminiferous Aether | Subject: RE: TAN #197: We CAN be polite, TANk u very much! mehaner - 2013-03-28 8:32 AM dudes, i totally forgot i have a race next week. ruh roh Good Luck You can do eeet!! Good morning TAN! |
| 2013-03-28 7:54 AM in reply to: #4677420 |
Champion 18680 Lost in the Luminiferous Aether | Subject: RE: TAN #197: We CAN be polite, TANk u very much! flip18436572 - 2013-03-28 7:09 AM MOrning TAN!!! It is Thursday, correct??? Feels like an overtime Saturday already.
This week does seem to be taking it's sweet time to end but I am off tomorrow!! We are doing a fishing charter in the bay. |
| 2013-03-28 8:05 AM in reply to: #4677499 |
Champion 14571 the alamo city, Texas | Subject: RE: TAN #197: We CAN be polite, TANk u very much! flip18436572 - 2013-03-28 8:42 AM mehaner - 2013-03-28 7:32 AM dudes, i totally forgot i have a race next week. ruh roh Good luck at your event!!! Remember you are 27 and can do anything, right!!! not according to what those jerk volunteers write on my leg ;-) |
| 2013-03-28 8:07 AM in reply to: #4677490 |
Pro 4313 McKinney, TX | Subject: RE: TAN #197: We CAN be polite, TANk u very much! mehaner - 2013-03-28 7:32 AM dudes, i totally forgot i have a race next week. ruh roh What race/distance? |
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