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I've just ordered a compressor pump, several pistons, valves, tees, and tubing to explore some of possibilities using pneumatics. The first thing that came to mind is the ability to move arms, etc., without the need for limit switches. - - - Nick - (...) (26 years ago, 11-Oct-98, to lugnet.robotics, lugnet.build)
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(...) Are they strong enough for practical use? (26 years ago, 12-Oct-98, to lugnet.robotics, lugnet.build)
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(...) A single pneumatic cylinder will break a 16-beam in half fairly readily. My (big) truck crane boom weighed about 4lbs, mith a center of mass about 18" from the bottom, and 3 cylinders could lift that when perched about 5" from the pivot. So, (...) (26 years ago, 12-Oct-98, to lugnet.robotics, lugnet.build)
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(...) Hmmm. Given all that, maybe I'll just continue to pass on them. (26 years ago, 13-Oct-98, to lugnet.robotics, lugnet.build)
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Chris (...) 1: (...) a (...) What sort of gearing do you need to operate the switches from a motor? Do you have any pictures of this assembly? I've often thought about trying it but never got around to doing it since I assumed that the power would (...) (26 years ago, 13-Oct-98, to lugnet.robotics)
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Matthew Miller wrote in message ... (...) 1: (...) a (...) Pneumatics are ok if you like them for the sake of it, for the sound of the puffs, the impressive sight of all the tubes, the compressor collecting pressure etc. If you just want to move (...) (26 years ago, 13-Oct-98, to lugnet.robotics, lugnet.build)
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Oh, and worst of all, the air switches are so tight that you need a strong Technic motor to switch them. We really need a compact electromagnetic air switch or at least a friction-free manual switch. Eric Brok (26 years ago, 13-Oct-98, to lugnet.robotics, lugnet.build)
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(...) Fortunately, the new technic motor doesn't need gearing down to throw an air switch. just directly connect a liftarm between motor and switch, but use a whit slip gear inbetween for safety. Eric (26 years ago, 13-Oct-98, to lugnet.robotics)
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Andy Bower wrote in message ... (...) With a lot of fiddling I managed to get a worm gear directly attached to a micromotor to operate the switch via a toothed plate. It made the whole assembly fairly compact (3x12x5 or so), but slow and noisy. (...) (26 years ago, 14-Oct-98, to lugnet.robotics)
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Moz (...) assembly (...) horizontally, (...) Micromotor (...) through (...) that (...) Thanks, I might give that a whirl. Andy Bower (26 years ago, 14-Oct-98, to lugnet.robotics)
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Pulleys and a rubber band should serve the same purpose as a slip gear. (...) (26 years ago, 14-Oct-98, to lugnet.robotics)
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(...) Hello, Don't give up on pneumatics just yet. See what you can do with them: (URL) s soh (25 years ago, 27-Jul-99, to lugnet.robotics, lugnet.build)
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I just bought my first cylinder and pump. Now I have to buy another one. That motor is so cool. Got to build it. Thanks for the page of instructions. Bob Fay rfay@we.mediaone.net The Shop (URL) s soh <cssoh@singnet.com.sg> wrote in message (...) (25 years ago, 27-Jul-99, to lugnet.robotics, lugnet.build)
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In lugnet.robotics, Soh Chio Siong writes: [snip] (...) [snip] Indeed don't! There is no better way to get great power and speed at the same time then the pneumatics. With a worm gear you can get great power, but not much speed, with the gears you (...) (25 years ago, 27-Jul-99, to lugnet.robotics, lugnet.build)
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(...) Another nice thing about pneumatics is that you can put the heavy compressor anywhere you want, and just run a couple of hoses off to the actual piston. This is useful at the business end of a robot arm, for example, where you want a powerful (...) (25 years ago, 28-Jul-99, to lugnet.robotics)
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FINALLY! some one has described a use for pneumatics! I keep debating on whetjer to buy some, because i don't know what to do w/them. My father is an engineer, but i remodel houses. I just like legos still as an adult. Thanks, & keep up the good (...) (25 years ago, 28-Jul-99, to lugnet.robotics)
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(...) Well, ultimately the pneumatic power comes from the motor that drives the compresser. At a given time frame you can only squeeze so much work out of the motor, and pneumatics is no magic. It gives you great power but still not much speed, if (...) (25 years ago, 28-Jul-99, to lugnet.robotics, lugnet.build)
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(...) (extra removed) (...) Don't forget, at the actuation end, a pneumatic-based motor should be liquid compatible, something the electric motors have a hard time with. Also, you can run the air lines quite far, so long as you are willing to accept (...) (25 years ago, 28-Jul-99, to lugnet.robotics)
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Hi, I was just wondering where i could find the small pumps that are used to make the compressors. I would like to find it as a seperate piece so that i do not have to buy a whole box. I got a lot of pneumatics with the set 8462 Tow Truck (available (...) (25 years ago, 29-Jul-99, to lugnet.robotics)
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(...) Hi Nicolas, You will find the parts in the Offical Lego web(www.lego.com) site thru the catalog link. select the service button and then the technic button. This will show you a list of available parts thru the Shop at home service. the part (...) (25 years ago, 29-Jul-99, to lugnet.robotics)
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Hi, thanks a lot for the info but i have one question. How do you order these parts. It says that you can not curently order them through the internet. Thanks in Advance. Nicolas Gauthier (25 years ago, 29-Jul-99, to lugnet.robotics)
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Hi, there are two ways to buys spare parts from the Service catalog: 1) Post the order to Lego France with a check (from a French bank); parts will be delivered within a week ONLY to an address in France (or Principality of Monaco, where I live) 2) (...) (25 years ago, 29-Jul-99, to lugnet.robotics)
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(...) You use the part numbers from the web page and then call the Lego Shop at home group in your country. The USA phone numbers are posted in the link (URL) or from the Shop-at-home specials link from the main lugent webpage Have fun ! John (25 years ago, 29-Jul-99, to lugnet.robotics)
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