 | | Re: rtlToronto19: Balance of Power and other upcoming events
|
|
(...) It is entirely possible that I missed your point entirely :) But I do realize that the balancing will only work at one state. My thought was that if the goal is to get your side tipped down a certain distance, than just having a large bot mass (...) (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
| |
| | Re: Anyone shoot video at Drag Racing?
|
|
(...) Video - Heck, I don't think anyone even took photos! I know I forgot my camera... -Rob A> (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
| |
| | Re: rtlToronto19: Balance of Power and other upcoming events
|
|
(...) Found these: (URL) clear photos of the actual setup, but the prof in charge does mention Lego as an inspiration. -nk (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
| |
| | Re: rtlToronto19: Balance of Power and other upcoming events
|
|
(...) Another thought is to use some external source to hold the beam still for the first 10 to 20 seconds of the contest, allowing both robots to do their stuff, and then let the beam go. That should have the effect of slowing down the super-fast, (...) (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
| |
| | Re: rtlToronto19: Balance of Power and other upcoming events
|
|
(...) Right. I made that assumption to prove that even if both robots are the same distance from the fulcrum, they are no longer in balance (a neutral win state). (...) I think you missed my point entirely. You were saying that by adding a mass to (...) (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
| |
| | Re: A slice of airplane
|
|
(...) Oh that's right. I remember you telling me this now when we went to that computer store in Scarborough to get you an iPod (pansy). (...) Ha! Good. Or the TurboTrain. :( Iain (born 20 years too late) (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
| |
| | Re: rtlToronto19: Balance of Power and other upcoming events
|
|
(...) B has the advantage if and only if the assumption that the robots move at the same rate holds true. Assuming that the two robots are are similar in terms of battery and motor configurations, i.e. can deliver the same power, robot A in the (...) (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
| |
| | Re: rtlToronto19: Balance of Power and other upcoming events
|
|
(...) Derek's got a good point - lead bricks aren't necessary - lots of battery boxes with dead batteries, or, 8466 tires. I would suggest a digital postal scale for event day, or a mechanical LEGO-built scale. Anyone UNDER the defined weight limit (...) (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
| |
| | Re: rtlToronto19: Balance of Power and other upcoming events
|
|
(...) I don't know, I've been trying to find the MIT contest webpages but I haven't been able to turn them up. I think there was a size and weight restriction in the original contest. Actually, come to think of it, all I remember was Alan Alda in (...) (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
| |
| | Re: A slice of airplane
|
|
(...) Embraer was being funded by the Brazilian government, an approach we didn't take lightly to. IIRC Brazil was offering export subsidies for purchasers of ERJs, making it more attractive for operators to choose them over CRJ. Basically the (...) (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
| |
| | Re: rtlToronto19: Balance of Power and other upcoming events
|
|
(...) It's easier and heavier to do it with battery boxes. I have more then enough of those. In the MIT contest, how do they handle this? Derek (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
| |
| | Re: rtlToronto19: Balance of Power and other upcoming events
|
|
(...) Do we really need a weight restriction? I mean, if you really want to load yer bad boy up with lead bricks bought off BrickLink, go right ahead. Calum (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
| |
| | Re: rtlToronto19: Balance of Power and other upcoming events
|
|
(...) I don't think that will work properly, though (from a fairness standpoint). Specifically because: 10 N @ 1 m = 10 Nm So a 1 kg mass (appr. 10 N) at the end of the beam generates a moment of 10 Nm at the fulcrum. Robot A weighs 25 N and robot B (...) (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
| |
| | Re: rtlToronto19: Balance of Power and other upcoming events
|
|
(...) One option for the weight restriction is to use something like the weighting currently in use for jockeys... but on a case by case basis. Specifically, put two bots on the beam, then weight the end of the lighter beam until the two start off (...) (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
| |
| | Re: Pnumatics
|
|
(...) It's the size of the small compressor, but it's a cylinder. No. I only have one small cylinder, but more then god of the large ones thanks to backhoes and Sears clearance. Derek (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
| |
| | Re: Pnumatics
|
|
(...) The backhoe has 10 big cylinders without the square bottom. I have a backhoe and I'm never taking it apart :) (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
| |
| | Re: Pnumatics
|
|
(...) What's a small cylinder? Does the Backhoe have a small cylinder? Calum (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
| |
| | Pnumatics
|
|
So I bought those Pnu accessory kits (3 of them), and I bought a few other miscellaneous large cylinders and such... So here's the breakdown on what I own-- 14 pnu valves 10 large cylinders with square bottom 8 large pnu pumps 7 small pnu pumps 5 (...) (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
| |
| | Re: Technic MOC: DuckPro Automated Duck Assembly
|
|
(...) Iain used the large shock absorber and designed an axle/slide end-of-arm-tool that was really neat! Basically the axles kept the EOAT from moving around while being pressed down. Maybe there's some pictures sonewhere. The whole assembly was a (...) (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto, FTX)
|
| |
| | Anyone shoot video at Drag Racing?
|
|
Hey guys, Did anyone shoot video at Drag Racing? I enjoyed Drag Racing so much (actually having participated and placed) that I forgot to pull out the ol' video camera and take some footage. Did anyone from the group shoot any material?! Calum (20 years ago, 1-Mar-05, to lugnet.org.ca.rtltoronto)
|
