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I've completed the web page for my model of a Demag AC50-1 all terrain crane and put it online here: (URL) model is entirely radio controlled and features some new gadgets from John Barnes. DAT files of the workings are there as well as some videos, (...) (22 years ago, 24-Jun-02, to lugnet.announce.moc, lugnet.technic, lugnet.robotics, lugnet.build, lugnet.loc.uk, lugnet.modelteam) !!
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A1++ We stand awed! JB (...) (22 years ago, 24-Jun-02, to lugnet.technic)
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Hi Jennifer: I don't write much to the board, but I do read everything posted. I just wanted to let you know how much I enjoyed visiting your site. It's going to take some time to read everything you have posted there but then again thats the fun of (...) (22 years ago, 24-Jun-02, to lugnet.robotics)
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So this is what you've been doing all that time... ;-) I look at your pages (haven't read the page on the crane yet, but the pictures seem promising - reading will be something for tomorrow) and realise that you've been doing what I've been trying (...) (22 years ago, 24-Jun-02, to lugnet.robotics)
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"Jennifer Clark" <jen@vulture.dmem.strath.ac.uk> wrote in message news:Gy8CLw.6uH@lugnet.com... (...) crane (...) Jennifer, No words I could ever type could even begin to describe how incredible you and your accomplishments are. Without a doubt in (...) (22 years ago, 25-Jun-02, to lugnet.technic)
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"Iain Hendry" <militaryduckjock@rogers.com> wrote in message news:Gy8Ip8.2Jp@lugnet.com... (...) Ditto! You've excelled yourself again, Jen. ROSCO (22 years ago, 25-Jun-02, to lugnet.technic)
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Once again, the sound of jaws hitting the floor is heard around the world... It may interest some of you to know that the little box near the top of the outer boom section holds the sensors for the load-moment indication system these big cranes use. (...) (22 years ago, 25-Jun-02, to lugnet.technic)
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(...) Hi Jennifer, I HATE your webpage! Seeing your creations makes me feel like a building moron! I can't even understand half of what you are explaining. Are you from another planet? I hope so, because what you do just blows my mind! My only (...) (22 years ago, 25-Jun-02, to lugnet.technic)
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I can't figure out which is the greater sin: violating Lego Purist theology or critisizing a Lego Goddess. Then there's my sin: spending two hours reading, marveling, and, dare I say, worshipping Jennifer's work when I should be in bed. Some of the (...) (22 years ago, 25-Jun-02, to lugnet.robotics)
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What a great Model! Excellent work, the interworkings are keen indeed! Great Job! Legomaster (...) (22 years ago, 25-Jun-02, to lugnet.technic)
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(...) I like the compact design of the tilting steering axle. I notice that the axle pivots around the axle used for the pinion. My experience with a configuration like this is that the weight of the vehicle makes the pinion very hard to turn, due (...) (22 years ago, 25-Jun-02, to lugnet.technic)
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(...) I've been waiting for this ever since you posted the pics on BimP. I think I've said before how great this MOC is and your explanatory pages are always excellent - How do you keep the enthusiasm to do so much writing up once you've finished (...) (22 years ago, 25-Jun-02, to lugnet.technic)
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(...) crane (...) far too much time on your hands! ;-) Very, very impressive (for a girl). ;-) Look forward to seeing it for real. Ian (22 years ago, 25-Jun-02, to lugnet.technic)
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Whilst it's undoubtedly herasy to criticise one of Jennifer's gorgeous models, and I'm sure I'm gonna get flamed for saying it - but I can't help feeling that an unfortunate line has been crossed - with painted parts, modified parts and (...) (22 years ago, 25-Jun-02, to lugnet.robotics)
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(...) Hee! Purism, of any sort, rests on a foundation of an assertion of wholeness. "There is no need" says the Purist, "of anything outside of The System, because The System is Whole and Complete." And for the record I say this about well roasted, (...) (22 years ago, 25-Jun-02, to lugnet.robotics)
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(...) little modification to the parts either, after all, specialised pieces are fine when you know there isn't an alternative. There are quite a few 5 and 7-long axles in my collection now, and beams with odd bumps and corners filed off. The notes (...) (22 years ago, 25-Jun-02, to lugnet.technic)
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"Fredrik Glöckner" <fredrigl@math.uio.no> wrote in message (...) It was initially a problem, especially since the vehicle is very heavy. The solution to was use a gear motor geared down by 36:1 which provides enough torque to overcome the friction (...) (22 years ago, 25-Jun-02, to lugnet.technic)
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"Simon Bogaert" <lego-robotics@crynwr.com> wrote in message (...) drive-axle (...) To be honest I have no idea! It certainly bears a lot of weight and is subject to a lot of friction when the wheels are steered, but I've not had it apart to check (...) (22 years ago, 25-Jun-02, to lugnet.robotics)
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"Steve Baker" <lego-robotics@crynwr.com> (...) Heresy schmeresy! Criticism is welcome! I feel the painted parts are the Right Thing here, only one type of brick is involved (1x7 liftarm) and the model had been built with the assumption that a white (...) (22 years ago, 25-Jun-02, to lugnet.robotics)
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Excellent explanation, Jennifer (and amazing model too!!!). I just want to note to everyone that LEGO themselves modifies their own parts in their theme parks. In California, they use machined parts and motors from a custom machine shop adjacent to (...) (22 years ago, 25-Jun-02, to lugnet.robotics)
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(...) You page is fantastic! Well worth the wait, IMO. The amount of detail you've added provides readers with so much interesting information not only about your model, but real cranes too. Your presentation of different suspension systems is (...) (22 years ago, 25-Jun-02, to lugnet.technic)
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(...) At first glance, I thought this link was wrong: (URL) I couldn't find any pictures of Lego models. I thought they were all real cranes. Incredible. Jeff J (22 years ago, 25-Jun-02, to lugnet.technic)
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Stunning as always. A wonderful piece of work. Congratulations! (...) (22 years ago, 25-Jun-02, to lugnet.technic)
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Wow! Jennifer, your work never ceases to amaze me. So much detail, so many complicated sub-systems, so little room for it all! Yet again another great model to marvel about. I'd like to also congratulate you on the excellent presentation you have (...) (22 years ago, 25-Jun-02, to lugnet.robotics)
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"Ralph Hempel" <rhempel@bmts.com> wrote in message (...) Any chance of a wee explanation about how these things work? The trouble with looking deeply into a subject is that it usually generates even more questions that you had in the first place, (...) (22 years ago, 25-Jun-02, to lugnet.technic)
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"Simon Bennett" <simon.bennett@ntlworld.com> wrote in message (...) think (...) always (...) I think the enthusiasm comes from just being interested in the subject matter, with these models the documentation is really just an organised brain dump. I (...) (22 years ago, 25-Jun-02, to lugnet.technic)
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Jennifer, Once again you have set a new standard in technic models this is amazing, keep up the good work :) James (...) (22 years ago, 25-Jun-02, to lugnet.technic)
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(...) Ha! There IS something you don't know about cranes! Basically, they have pressure transducers on the hydraulics that control boom luffing. Then there's a really complicated bit of software that's customised for each and every crane geomoetry (...) (22 years ago, 25-Jun-02, to lugnet.technic)
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Darn it! I felt sure you were going to say there was a gyro or something involved! I've been thinking that an RCX compatible gyro sensor is the logical companion to the latest new sensor idea I've been working on - an accelerometer. Now, if I could (...) (22 years ago, 25-Jun-02, to lugnet.technic)
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(...) Will the first one be toting your shotgun John? Steve (22 years ago, 25-Jun-02, to lugnet.technic)
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Jennifer, this is exactly what I'd hoped your superb Technic creations would gradually evolve toward: from being brilliant Technic models to being fantastic Model Team creations with all the functionality (and more) you could hope for from a classic (...) (22 years ago, 25-Jun-02, to lugnet.technic)
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(...) The PAT company also makes weigh-in-motion systems. The bending plate uses a strain-gauge to measure the load. What's interesting about this is that the approach path needs to be pretty level, so I designed a simple accelerometer that fed into (...) (22 years ago, 25-Jun-02, to lugnet.technic)
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that's just amazing - the mind boggles - I'm an in awe. (22 years ago, 25-Jun-02, to lugnet.technic)
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(...) Tell me about it. I've had a model finished - and photos taken for nearly a year now, and what with finishing my degree and what have you, I havn't started writing it up. Then I took that model apart and I've nearly finished a new one - which (...) (22 years ago, 25-Jun-02, to lugnet.technic)
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(...) Indeed. Here in Melbourne recently, a tower section was being added when the counterweight detached & fell, killing one worker. (URL) (22 years ago, 25-Jun-02, to lugnet.technic)
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(...) Here are a few good ones: (URL) (22 years ago, 26-Jun-02, to lugnet.technic)
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(...) ROSCO (22 years ago, 26-Jun-02, to lugnet.technic)
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(...) a giant tree falling over. The boom went one way, the superlift went the other. The crane instantly transformed from 10 feet tall, to about 6 inches. I didn't take any pictures, but it certainly made a mess! Dennis had an unfortunate (...) (22 years ago, 26-Jun-02, to lugnet.technic)
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(...) Awesome! Just awesome! Could you please apply for a job as a Lego designer? I'd buy this if it were an official Lego set in a heartbeat! If not that, then how about you producing this as a kit and selling them yourself on Bricklink? I'm sure (...) (22 years ago, 26-Jun-02, to lugnet.technic)
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Jennifer, Wonderful model and again, great presentation on the web. I cannot wait to see this at BrickFest. Bob (...) (22 years ago, 26-Jun-02, to lugnet.technic)
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(...) Ah, yes, I see now that you mention this in the text on the website as well. Initially, I have to admit that I was just looking at the pictures! By the way, I like the solution you've found for securing the rack. The sliding 2x1 beam with (...) (22 years ago, 26-Jun-02, to lugnet.technic)
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"Bob Parker" <cg47@hotmail.com> wrote in message news:GyBK5y.LGr@lugnet.com... (...) two! Thanks Bob! Unfortunately there is the matter of creating instructions, which would be a Herculean task, and the price would be a lot more than you might (...) (22 years ago, 26-Jun-02, to lugnet.technic)
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"Rebecca Taylor" <arellcat@NOSPAMyahoo.com> wrote in message news:Gy9Io8.626@lugnet.com... (...) and (...) Glad to hear I'm not alone in this hacking and slashing business :-) The 5 long axle is now kosher though, and I bet the 7 will not be long (...) (22 years ago, 26-Jun-02, to lugnet.technic)
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"Thomas Avery" <thomas.avery@intec-hou.com> wrote in message news:Gy9n3M.GnE@lugnet.com... (...) Spot on. The trouble is that it doesn't really come apart under normal use, and even when loaded with a kilo it is only a little bit, but still (...) (22 years ago, 26-Jun-02, to lugnet.technic)
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(...) OK fine - how about if you remove all the lighting, remote control and motors so that it becomes 'just' a simple Model Team type of kit of around 3,000 bricks? Then would you do it? Please? I'd be willing to manually extend the outriggers, (...) (22 years ago, 26-Jun-02, to lugnet.technic)
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| | Re: Spectacular crane failures (was: All Terrain Crane)
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(...) I also had an accident with my latest mobile crane - trying to do a mod in the superstructure while the boom was up. I didn't get any shots, but I might do it again, just to show how much those 12L axles can bend without breaking! ROSCO (22 years ago, 26-Jun-02, to lugnet.technic)
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BONK! (Intended to be sound of jaw dropping on desk...) What keeps surprising me is how much functionality you manage to squeeze into so little space... Anyone else attempting all these functions would end up with a model twice this size... About (...) (22 years ago, 27-Jun-02, to lugnet.technic)
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"Bob Parker" <cg47@hotmail.com> wrote in message news:GyBxrI.CDw@lugnet.com... (...) :-) It is really to late in the day for a retrofit on this model, but one of these days I intend to make a model (probably a crane) that is manually controlled so (...) (22 years ago, 27-Jun-02, to lugnet.technic)
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"Fredrik Glöckner" <fredrigl@math.uio.no> wrote in message (...) And totally superflous! As John Barnes spotted, it could be replaced by adding an extra 1x2 technic brick and a 2x2 tile. I did it with the 1x2 plate with one stud for a good (but (...) (22 years ago, 27-Jun-02, to lugnet.technic)
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"Duq" <lugnetpost@skipthis...tmfweb.nl> wrote in message news:GyC8z2.InE@lugnet.com... (...) Good point, it hadn't occured to me to do this in this context, I think attempting to fit all the bits into as small a space as possible was clouding my (...) (22 years ago, 27-Jun-02, to lugnet.technic)
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"Jeff Jardine" <jwjardin@diespam.mccain.ca> wrote in message news:Gy9r10.2CI@lugnet.com... (...) all (...) I've stared at the model for so long it just looks like a bucket of bricks flying in formation to me :-) Jennifer (22 years ago, 29-Jun-02, to lugnet.technic)
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(...) I've always thought building was just a very specialised kind of sorting... ROSCO (22 years ago, 29-Jun-02, to lugnet.technic)
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Jennifer, Wonderfull! What a model! I really like the techniques you put into it. OK, it's not 100% LEGOs, but what bothers you anyway? Sometimes I'm smuggling myself ;-) The mechanism for luffing the boom is a great invention! I always have some (...) (22 years ago, 7-Jul-02, to lugnet.technic)
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Thanks for the comments Dennis! I think using a leadscrew is a good way to luff large booms, unless someone comes along with some mini hydraulics, but even at that, having hydraulic oil leak all over your living room carpet is probably not the ideal (...) (22 years ago, 8-Jul-02, to lugnet.technic)
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(...) Do it in the bedroom 8?) What about water? (...) (URL) 'em to your ldraw parts dir. Dunno how to convert 'em to use with leocad though... ROSCO (22 years ago, 8-Jul-02, to lugnet.technic)
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Once they are in your ldraw parts dir, you just have to import them in LeoCad (File > Piece library manager > File > import piece). Then quit LeoCad and restart it to rebuild part list. Your parts should be ready to use ! Note that Damien's parts (...) (22 years ago, 9-Jul-02, to lugnet.technic)
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