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Hi Everyone, I have just completed my Technic Lego Combine Harvester. It is loosely based on a New Holland, although I like to keep the body open to show off the mechanical aspects of the machine. It features motorised head, with pnuematic (...) (16 years ago, 10-Feb-09, to lugnet.technic)
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| | Re: Studless Truss Design?
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(...) That's gorgeous! Not exactly what I was looking for, but maybe inspiration for the next project. Maybe I'm thinking too small here. What's the span on that? Looks like about 4 meters. (16 years ago, 2-Mar-09, to lugnet.technic, FTX)
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| | Re: Studless Truss Design?
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I put this together last year for the sydney train club. It uses pretty common parts. (URL) The big problem with studless building is the amount of clutching you get from the connector pins. In this bridge i jammed tiny bits of flex-tube in the (...) (16 years ago, 2-Mar-09, to lugnet.technic, FTX)
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| | Re: Studless Truss Design?
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(...) Neither of those files seems to contain anything- but I understand what you are saying. I thought I was on to something with some Technic Triangles as right-angle connectors and pinned beams on diagonals. Worked fine, I guess- but needed (...) (16 years ago, 1-Mar-09, to lugnet.technic)
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| | Re: Studless Truss Design?
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(...) Tower Crane Boom is beam and pin only. (URL) uses multiple dimension connectors as it requires torsional stiffness. (URL) will need 'exotics' to connect dimensions. Thats how studless works best. The beams only have holes in one direction = (...) (16 years ago, 1-Mar-09, to lugnet.technic)
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| | Re: Studless Truss Design?
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(...) My recollection is that Znap had parts that could do that... :-) Rafe (16 years ago, 26-Feb-09, to lugnet.technic)
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| | Re: Studless Truss Design?
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(...) Good start, though it takes some exotic pieces. Seems like Lego should make a piece that joins liftarms end-to-end. I'm sure i'm not the only person that would use it. (16 years ago, 26-Feb-09, to lugnet.technic)
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| | Re: Studless Truss Design?
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(...) What about Parax's tower crane? ((URL) (16 years ago, 26-Feb-09, to lugnet.technic)
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| | Studless Truss Design?
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I figured a studless truss couldn't be too hard to build, and it would use up some of these dang liftarms... but I can't seem to get a decent design. Has anybody done such a thing? Links/pics appreciated. (16 years ago, 25-Feb-09, to lugnet.technic)
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| | Re: Powering Power Functions Using a 9V Train Regulator
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(...) Sheer awesomeness! I knew I could count on your guys for the answer and the workaround. Though it's not ideal to have to use the battery box, it's nonetheless a great workaround. Maybe LEGO will release a V2.0 connector that allows us to (...) (16 years ago, 25-Feb-09, to lugnet.technic)
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| | Re: (was: The pole reverser - what's it do?) Old Style Trick Use
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(...) I had successfully used just such a mechanism in 2006 at Brickfest in DC with a remote control I used to run part of my GBC components. The remote allowed users to steer a chute left or right and try to make the balls hit a moving target. The (...) (16 years ago, 25-Feb-09, to lugnet.technic, FTX)
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| | Re: Powering Power Functions Using a 9V Train Regulator
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(...) ;o) Rob explained the problem you encounter - there is nonetheless a workaround using only LEGO components, explained here (URL) Sorry, it's in French, you'll have to use a web translator. A big warning: using this setup, it is possible to (...) (16 years ago, 25-Feb-09, to lugnet.technic)
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| | Re: Powering Power Functions Using a 9V Train Regulator
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(...) Hi Dave, What you're missing is that the IR Receiver requires a specific PF input.. if you ask me that was a small oversight on the part of LEGO as far as backwards compatibility is concerned, but there is a relatively easy workaround. You can (...) (16 years ago, 25-Feb-09, to lugnet.technic)
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| | Re: Powering Power Functions Using a 9V Train Regulator
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(...) The receiver works on the outer most two contacts of the PF cable, and the "legacy 9v" run on the inner most two wires. Basically, outer wires for the power bus for controllers, and inner two wires for load items such as lights and batteries. (...) (16 years ago, 25-Feb-09, to lugnet.technic)
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| | Powering Power Functions Using a 9V Train Regulator
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Calling all EE's, robotics nuts, technic gurus, PF fanatics, and electronics geniuses... So by using the PF to 9V connector wire, I can run a PF motor using the 9V Train regulator. This is all wonderful...until I try to put an IR receiver between (...) (16 years ago, 25-Feb-09, to lugnet.technic, lugnet.trains, lugnet.robotics)
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| | Re: (was: The pole reverser - what's it do?) Old Style Trick Use
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(...) -snip- (...) You guys got to try this: Get one of the RC Racer units. You know how the steering motor only turns a little to the left and right with the remote? Well, connect a small axle to the steering motor and the polarity reverser. Like (...) (16 years ago, 24-Feb-09, to lugnet.technic, FTX)
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| | Re: The pole reverser - what's it do?
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(...) I've gotta agree with that question: I loved the fact that the old one can turn 360 degrees and have used that option to make it do some fun and screwy things. In fact, you can use it like one of those mechanical timer outlet things, like one (...) (16 years ago, 24-Feb-09, to lugnet.technic, FTX)
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| | Re: The pole reverser - what's it do?
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I have a related question: Why did LEGO add a permanent post to the new switch? The old polarity switch could turn 360 degrees if you didn't add a post, but the new one only turns as far as its built-in post allows. I will grant that I've never (...) (16 years ago, 24-Feb-09, to lugnet.technic, FTX)
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| | Re: The pole reverser - what's it do?
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(...) You can see the schematics for the PF lights on Philo's page, to be more precise, here: (URL) (16 years ago, 24-Feb-09, to lugnet.technic, lugnet.trains)
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| | Re: The pole reverser - what's it do?
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(...) And the winner is...... C!!!! I put my meter on the outside poles and got nothing. open. I put my meter on the inside poles and found 9M ohms in one direction but 6M in the other ? This means the lights[1] use the same source as the IR (...) (16 years ago, 24-Feb-09, to lugnet.technic, lugnet.trains)
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