 | | RE: RCX Controlled Air Compressor Tester
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For what its worth, the Lego Shop@Home catalog is offering the #8250 Rescue Sub for $25.00, discounted from $49.50. Big pump, air tank, one valve, one big cylinder, long yellow beams and nifty molded shapes. For the price, I'm thinking of getting (...) (25 years ago, 28-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)
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| | Re: RCX Controlled Air Compressor Tester
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(...) I have tried to emphasise all the time in my web pages. It has probably reached the theoretical limit of efficiency for the small pump. It will be difficult to build another compressor that can surpass his mini compressor. On the other hand, (...) (25 years ago, 28-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)
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| | Re: RCX Controlled Air Compressor Tester
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(...) Thanks, Indeed, my first attempt was to use a rotational sensor positioned with the axle at the pivot point of the lever arm and tried to datalog the angular movement using DACTA Control Lab. However, the resolution of the rotation sensor (...) (25 years ago, 28-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)
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| | Re: RCX Controlled Air Compressor Tester
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A Lego testing machine for Lego compressors... wow, one of the coolest Lego things ever seen around! I love the idea and love your implementation, and find your results very useful. BTW, I think that the Ralph Hempel's double-action compressor (...) (25 years ago, 28-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)
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| | Re: RCX Controlled Air Compressor Tester
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Nice work! For a while it looks that you could travel back in time using this recording device, before you realize that the pen draws an arc when the paper doesn't move ;-). Could it be possible to add a rotational sensor and datalog the time and (...) (25 years ago, 28-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)
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| | Re: RCX Controlled Air Compressor Tester
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(...) Thanks for the nice comments and suggestions. As a matter of fact, I'm working towards a doctorate in Legorobotology, majoring in Pneumatics (what else) from the University of Legoland, if not MIT :-)) -- C S Soh (URL) where air is power (25 years ago, 28-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx, lugnet.technic)
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| | Re: RCX Controlled Air Compressor Tester
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(...) Er, <wipes egg off face> never mind. They're on the next page. Missed that the first time. However the Limit switch reference probably should be changed. I merely hosted the diagram that I was mailed, and I cannot take credit for coming up (...) (25 years ago, 28-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx, lugnet.technic)
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| | Re: RCX Controlled Air Compressor Tester
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Wow. Did you do that for a paper or thesis? Very worthy research with a surprising outcome. I am sure most of us would surmise that the big sprung cylinder would give more efficacious designs because the displacement would be larger. This site (...) (25 years ago, 28-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx, lugnet.technic)
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| | Re: RCX Controlled Air Compressor Tester
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(...) Thanks, The Advanced Pneumatics Set is Lego DACTA #9633. It's a great set to start pneumatics although its considered a bit expensive. It's pictured at my page on: (URL) S Soh (URL) where air is power (25 years ago, 28-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)
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| | Re: RCX Controlled Air Compressor Tester
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Thanks for the great comparison between compressors! I have been wondering which one was actually the best. Now to make a better one! One question though, what is the set number for the Advanced Pneumatics Set? Great Work! John Matthews C S Soh (...) (25 years ago, 28-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)
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| | New Lego model pages at my Website
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Hey all, Just kinda a preview -- I added my minifig-scale Droideka and some microfig-scale models to my Web page. Check it out at the bottom of: (URL) don't think there's anything there that I haven't already posted to LUGNET; I figured that folks (...) (25 years ago, 28-Sep-99, to lugnet.build)
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| | RCX Controlled Air Compressor Tester
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Hi, all pneumatics fans, For some time I've been trying to figure out how to objectively compare the performance of the various air compressor designs especially the ones using the large pneumatic hand pump which seem to be coming into fashion (...) (25 years ago, 28-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)
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| | Re: Bass
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(...) I think they came from the little adventurers 5925 Pontoon Plane. Josh Spaulding (25 years ago, 24-Sep-99, to lugnet.build)
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| | Re: Bass
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(...) page (...) stuck. I really like how you did the feet, they look like how they do in the game. Where did you get those brown slopes? Greg "Um, yeah, that too." Majewski (URL) (25 years ago, 23-Sep-99, to lugnet.build)
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| | Re: Bass
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(...) Oops! Thanks for the correction, Matt. Josh Spaulding (URL) (25 years ago, 23-Sep-99, to lugnet.build)
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| | Re: Bass
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(...) That's because it's (URL) (25 years ago, 23-Sep-99, to lugnet.build)
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| | Re: Bass
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(...) Proto (...) it'll (...) The link doesn't seem to be working. I get a Tripod prompt that says the page doesn't exist.. Greg "" Majewski (URL) (25 years ago, 23-Sep-99, to lugnet.build)
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| | Re: Bass
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(...) Okay, finally got around to uploading a scan: (URL) not exactly a masterpiece, but if you like that sort of thing, maybe it'll inspire you... Josh Spaulding (25 years ago, 23-Sep-99, to lugnet.build)
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| | Re: Horses (Was: Lets get a datsville castle going)
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[ FUT lugnet.build ] Brian Sauls: (...) Thanks. (...) The basic idea for both horses and elephants come from official LEGO models and idea books. (...) Yup (had to include a few 1x2's to get it right though). A friend of mine is taking care of it at (...) (25 years ago, 23-Sep-99, to lugnet.castle, lugnet.build)
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| | Re: Horses (Was: Lets get a datsville castle going)
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Adam Payne wrote in message ... <snip> (...) Oooo...oooh! Aaahhh...hhh! Thanks for the tip--gonna' build that one. Gotta' by some bricks..... Brian (25 years ago, 22-Sep-99, to lugnet.build)
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