 | | 2010 Brickworld Theme
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(URL) Share - Learn - Explore - Discover After much deliberation, the Brickworld Team is excited to announce that the theme for this year's event is: 2010: Bricks In Space So, let's all try to work something "spacey" into our displays somewhere in (...) (15 years ago, 10-Feb-10, to lugnet.events.brickworld, lugnet.fun.community, lugnet.announce, lugnet.general, lugnet.events, lugnet.robotics, lugnet.trains, lugnet.castle, lugnet.pirates, lugnet.space, lugnet.people, FTX)
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| | 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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| | Re: A fast NXT 2.0 ball sorter
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(...) Cool! And very impressive. Play well, Jacob -- (URL) (15 years ago, 5-Jan-10, to lugnet.robotics, FTX)
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| | Re: 12/29/09 Portland Snowstorm
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(...) I wish I did!! (15 years ago, 2-Jan-10, to lugnet.robotics)
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| | Brickworld Registration Open
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(URL) Share - Learn - Explore - Discover The team at Brickworld is excited to announce that registration for the 2010 event at the Westin is now open. Preorder items will be posted on the web site soon (including 2 event kits). The theme is (...) (15 years ago, 1-Jan-10, to lugnet.events.brickworld, lugnet.fun.community, lugnet.announce, lugnet.general, lugnet.events, lugnet.robotics, lugnet.trains, lugnet.castle, lugnet.pirates, lugnet.space, lugnet.people, FTX) !
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| | Re: 12/29/09 Portland Snowstorm
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(...) Thanks for sharing this. A number of Technic contraptions have shown up during the past few weeks that somehow involved travelling over snow. Did you take any pictures of the things your group built? Jetro (15 years ago, 31-Dec-09, to lugnet.robotics)
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| | 12/29/09 Portland Snowstorm
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9 kids (10-11yo) were in class with me when someone from Oregon State University Extension came by to announce that it was snowing outside. Our first snow of the winter and 2 inches was on the ground in very little time. The surprise storm caused (...) (15 years ago, 31-Dec-09, to lugnet.robotics)
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| | Some new videos
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I have added a few relatively new videos to YouTube and my blog. Lip syncing robot This is a single motor that moves based on the intensity of the sound coming into the sound sensor (URL) Printer This is a robot that drops dominos in a pattern that (...) (15 years ago, 31-Dec-09, to lugnet.robotics, lugnet.announce.moc)
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| | Motorized sausage
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OK, here comes another one! (2 URLs) This has a new (?) method of locomotion - it rolls along just by changing its shape. The wheels are fixed to the body and do not rotate. In principle you could enclose the whole thing in a plastic bag and it (...) (15 years ago, 30-Dec-09, to lugnet.technic, lugnet.robotics, lugnet.announce.moc, FTX)
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| | Re: A fast NXT 2.0 ball sorter
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(...) Thanks ! (...) I initially thought I would have to do that, but actually in this design the speed limitation comes from the ball splitter mechanism (in the NXC version it runs full speed without stopping). I have not tried with alkaline (...) (15 years ago, 28-Dec-09, to lugnet.robotics)
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| | Automatic synchro drive
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Finally getting around to writing up some MOCs... (3 URLs) I wish I could take credit for this remarkable invention, but in fact I got the idea from (URL) here>. Not having any instructions for this one, I made my own, and tried to make it a bit (...) (15 years ago, 27-Dec-09, to lugnet.technic, lugnet.robotics, lugnet.announce.moc, FTX) !
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