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In lugnet.technic.bionicle, Terry Prosper wrote: . (...) YES! This thing is HUGE! Check out my 3 year old holding this thing: (URL) you can find one it would be a BIG HIT if your lil' brother-in-law likes to make his own creations, BUT if he is one (...) (20 years ago, 9-Apr-04, to lugnet.technic.bionicle, lugnet.general, lugnet.market.shopping)
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| | Re: pneumatic cylinder: why not hydraulic ??
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(...) Mark, I thought this one through, and I get it. I can see how it works. The solution works equally well as my solution. I don't think mine is any more or less complicated, just different. Less hoses, more T's and other technic parts than (...) (20 years ago, 9-Apr-04, to lugnet.technic)
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| | Re: Bulk Bionicle tubs at TRU
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(...) Checked around and it appears this project was initiated by the Bionicle team here in LEGO Americas. TRU just happened to be the lucky beneficiary of the production of the tub. FYI builders with a flare for unconventional creativity -- this (...) (20 years ago, 9-Apr-04, to lugnet.technic.bionicle, lugnet.general, lugnet.market.shopping, FTX)
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| | Re: Bulk Bionicle tubs at TRU
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The ad for this bionicle 'tub' came out last Sunday. I stopped in today (Thursday) and they had five on the shelf (Las Vegas). I picked some up for a friend. I'm not into bionicle, but this does look fun to play with. :) Corey www.brickitgood.com (20 years ago, 9-Apr-04, to lugnet.technic.bionicle, lugnet.general, lugnet.market.shopping, FTX)
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| | Re: Bulk Bionicle tubs at TRU
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Hey guys, I'm not a bionicle fan. I say this to illustrate the fact that I know very little of bionicle sets and parts and their use and the way people "play" with them. My lil' brother-in-law is having his birthday soon and I know he asked for (...) (20 years ago, 9-Apr-04, to lugnet.technic.bionicle, lugnet.general, lugnet.market.shopping)
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| | Re: pneumatic cylinder: why not hydraulic ??
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(...) I'd love to see a picture of your reversor, as verbal explanations by themselves are often much harder to comprehend. (...) Again, I'd like to see this. My pneumatic mux that can act as a polarity reversor, can just as easily be used for an (...) (20 years ago, 8-Apr-04, to lugnet.technic)
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| | Re: pneumatic cylinder: why not hydraulic ??
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(...) The amount that a fluid can be compressed varies with the fluid, the temperature, the pressure and other things. Water can be compressed too much - that's why trucks don't use it for their hydraulic systems. Hydraulic fluid is special oil that (...) (20 years ago, 8-Apr-04, to lugnet.technic)
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| | Re: pneumatic cylinder: why not hydraulic ??
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(...) I get the impression you've complicated things by putting different switches at different lever angles. My reverser idea puts the switch lever pivots 16mm apart, all in a line with 2-beams between: BSBSBSBSB along a beam of length 17 holes, so (...) (20 years ago, 8-Apr-04, to lugnet.technic)
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| | Re: pneumatic cylinder: why not hydraulic ??
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In lugnet.technic, Kevin L. Clague wrote: <snip> (...) Actually this multiplexer is more efficient because it uses less parts: (URL) (20 years ago, 8-Apr-04, to lugnet.technic)
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| | Re: pneumatic cylinder: why not hydraulic ??
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<snip> (...) Hi Mark, I've thought about this in the past, and ruled it out because it is such a specialty. Do you think there is a big enough market to justify a book on this topic? Kevin (20 years ago, 8-Apr-04, to lugnet.technic)
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| | Re: LEGO at the Bauma 2004 construction equipment trade fair
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Thank you very much for posting these pictures! must have been a great convention to attend. i especially liked the series of pictures of the red Liebherr crane. bob (...) Bob Kojima ko@fial.com Fial Incorporated Telecom Monitoring Solutions 4343 SW (...) (20 years ago, 8-Apr-04, to lugnet.technic)
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| | Re: pneumatic cylinder: why not hydraulic ??
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(...) It is my understanding that fliuds cannot be compressed. So a cylinder hooked to another cylinder with fluid in between (assuming no leaks), would always provide 1 to 1 movement. I'm not an expert in hydraulics, but I think your claim above (...) (20 years ago, 8-Apr-04, to lugnet.technic)
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| | Re: pneumatic cylinder: why not hydraulic ??
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(...) I have created a pneumatic polarity reversor using four pneumatic switches. I did an analysis and my pneumatic multiplexor works as a hydraulic switch that does not have a free release. (URL) above picture contains two pneumatic multiplexers. (...) (20 years ago, 8-Apr-04, to lugnet.technic)
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| | Re: LEGO at the Bauma 2004 construction equipment trade fair
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Hi Beat, (...) that doesn't work here, can't you just put the description on the page? Jürgen (20 years ago, 8-Apr-04, to lugnet.technic)
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| | LEGO at the Bauma 2004 construction equipment trade fair
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Hello Friday and Saturday 2 and 3 April I have been in Munich visiting the worlds largest trade fair of any kind, the Bauma construction equipment show. And as I know that there are a lot of crane and construction equipment fans here on (...) (20 years ago, 8-Apr-04, to lugnet.technic, FTX)
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| | Re: pneumatic cylinder: why not hydraulic ??
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Not alone thinked about it a while back,currently studing fliud power and in the fluid power industry (...) Lego pneumatic cannot be used for hydraulic's period! Nor will there be such a thing put out by lego there in the toy industry not heavy (...) (20 years ago, 8-Apr-04, to lugnet.technic)
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| | Re: pneumatic cylinder: why not hydraulic ??
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purpledave@maskofdestiny.com (Purple Dave) wrote in <Hvtrvs.sBv@lugnet.com>: (...) And where would you leave all that fluid? Fluids aren't compressible (yeah, they are, but so much less than air that I'm close enough for government work). (20 years ago, 8-Apr-04, to lugnet.technic)
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| | Re: pneumatic cylinder: why not hydraulic ??
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(...) Not necessarily. Assuming both cylinders are the same size, a full pump cylinder stroke will only result in a full working cylinder stroke if the working cylinder doesn't have significantly more resistance than the pump cylinder. If the (...) (20 years ago, 7-Apr-04, to lugnet.technic)
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| | Re: pneumatic cylinder: why not hydraulic ??
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(...) One key thing about hydraulics has always been "avoid leaks". To switch the fluid, just invent something I've wished for for years - the reverser switch. This switch has four ports, used in opposing pairs. Clockwise in a circle they would be (...) (20 years ago, 7-Apr-04, to lugnet.technic)
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| | Re: MStamp
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(...) Yes, eventually that will happen. The tricky part is actually buying the stamp. :) I'm a little worried that the ink will drip out of the ink pad since it's inverted but I'll just have to cross that bridge when I get to it. As for the real (...) (20 years ago, 7-Apr-04, to lugnet.robotics, lugnet.technic, FTX)
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