 | | Linked cranks mechanical puzzle
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Here is my current favourite MOC: (2 URLs) It's a Lego implementation of an amazing mechanical puzzle invented by Oskar van Deventer and Bram Cohen, as seen here: (URL) I can't improve on the explanation given in this second video - just watch it! (...) (15 years ago, 6-Feb-10, to lugnet.technic, lugnet.announce.moc, lugnet.robotics)
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| | Developing a "button pressing" RCX system
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Hello, I have inherited a hand-me-down RIS kit with a functional RCX unit that I would like to learn to use and put to a purpose. I would like to build a system whereas the RCX is setup to press buttons on controllers (think remote control units) to (...) (15 years ago, 29-Jan-10, to lugnet.robotics.rcx.legos)
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| | Re: How is this?
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(...) I can see how this can happen and it depends on the sequence of events. This sequence will cause this behavior: touched AND distance < 9 - Motor turns on touched AND distance > 9 - Motor running, waiting for distance < 9 untouched AND distance (...) (15 years ago, 23-Jan-10, to lugnet.robotics.nxt)
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| | How is this?
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One of my students built the chainsaw model from nxtprograms.com. He wanted to make the blade turn only when it was at a distance less than 9 inches from the table. So he attached an ultrasonic and made one mod to the program. The program in NXT-G (...) (15 years ago, 23-Jan-10, to lugnet.robotics.nxt)
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| | Question about gearing Power Functions-based trains
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I've noticed that because the Emerald Night's two sets of driver wheels are locked together, the engine struggles to go around corners: the outer wheels have further to turn, so the wheels slip and the engine's movement becomes jerky. Would it be (...) (15 years ago, 19-Jan-10, to lugnet.trains, lugnet.technic, lugnet.robotics, FTX)
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| | dSwitch Aquasaurs Temp Monitor
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Hey gang I just finished this MOC. This one use a LEGO Mindstorms NXT and a dSwitch to control a 120V light to aid in heating an Aquasaurs tank. More info at the link below: (URL) (15 years ago, 19-Jan-10, to lugnet.robotics)
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| | PC - NXT communication with C language
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Hi everybody: I would like to communicate a NXT with a PC through Bluetooth. The NXT program would be NXC, so there is no problem there since NXC provides a set of functions for BT communication. However, I need the PC program to be written in C. Is (...) (15 years ago, 19-Jan-10, to lugnet.robotics.nxt)
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| | DualGrip - NXT Rover (DG) - my latest creation
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Hey folks, It's been a while since I last made a bot. My latest is DualGrip - NXTRover (or DG for short). I wont go into great detail as all info (with videos) can be found at my site (URL) but DG has both tracks and wheels and uses an acceleration (...) (15 years ago, 15-Jan-10, to lugnet.robotics)
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| | Re: LDraw Parts of HiTechnic Sensors and Multiplexers now available
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Thank You Philo! ...and Gus for posting. Littlehorn (15 years ago, 14-Jan-10, to lugnet.cad, lugnet.robotics, FTX)
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| | LDraw Parts of HiTechnic Sensors and Multiplexers now available
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A couple of months ago I worked with Philo on creating a complete set of LDraw parts for the HiTechnic sensors and multiplexers. These are now available for download from the HiTechnic downloads page. Look near the bottom of (URL). This LDraw parts (...) (15 years ago, 13-Jan-10, to lugnet.cad, lugnet.robotics, FTX) !
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