 | | Re: Using airtanks on 8868
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(...) Sure, but in the original configuration of 8868, you have more control, as you can turn the compressor on and off for short durations and yield relatively small changes in the stroke of the cylinder. Adding an air tank really makes this much (...) (25 years ago, 20-Sep-99, to lugnet.build)
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| | Re: Using airtanks on 8868
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Hydraulic and pneumatic systems work differently. In the first one, your working fluid is an incompressible one (liquid oil, generally) so you have the full control of the stroke length of any piston.But in the case of pneumatics, the working fluid (...) (25 years ago, 20-Sep-99, to lugnet.build)
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| | Re: Using airtanks on 8868
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John Morgan wrote in message ... (...) really (...) the (...) then (...) valve (...) I have thought of using different valves. If one could use a valve based upon pressure (slower pressure increases). This would allow a slower response to the (...) (25 years ago, 20-Sep-99, to lugnet.build)
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| | Re: Using airtanks on 8868
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(...) Hi Fredrik, That lack of control of the cylinders has been my experience too. You really have to barely open the valve to be able to stop in partially extended movement. I wonder if you designed a cam that would squish the tubing past the (...) (25 years ago, 19-Sep-99, to lugnet.build)
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| | Web Page
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My Lego page moved to (URL) added some new stuff (no new creations though, prepare for more after I get these pictures developed!) There is now something I call Lego Site of the Year. If you have a Lego page you can nominate you site and enter it in (...) (25 years ago, 19-Sep-99, to lugnet.general, lugnet.space, lugnet.build)
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| | Re: Using airtanks on 8868
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(...) Don't you loose all precise control with the air tank? My experience with using the air tanks is that when you flip the switch, the cylinders go _smack_ to the extreme position at once. Fredrik (25 years ago, 19-Sep-99, to lugnet.build)
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| | Re: Using airtanks on 8868
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Where will you put the diesel fuel? -- Bob Fay rfay@we.mediaone.net The Shop (URL) Möller <tobias.moller@telia.com> wrote in message news:FIArEt.60B@lugnet.com... (...) will (...) (25 years ago, 19-Sep-99, to lugnet.build)
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| | Using airtanks on 8868
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Take a look at this picture: (URL) see those white things, that are supposed to look like air tanks? If you have two of the blue, *real*, pneumatic air tanks, you can replace those white things with them. I tried that, but I own only one airtank. It (...) (25 years ago, 19-Sep-99, to lugnet.build)
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| | Re: want a LEGO Phone?
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Good idea! Any picture? :) I bought a Tyco phone like this one: (URL) it's not real Lego... When I was a kid, I built a mechanical calculator that could add and subtract numers from 0 to (I think it was) 52. I has no practical use for, but it was (...) (25 years ago, 18-Sep-99, to lugnet.build)
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| | Instruction scans for 1775?
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Does anyone have set 1775, the airline promo? (URL) like to get scans of the instructions, or if you can, upload them to brickshelf.com so everyone can use them. (25 years ago, 18-Sep-99, to lugnet.build)
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| | Re: 1999 Technic
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(...) Hmmm ... I can only agree to a part of this ... the line is much better than last year (or possibly the year before) ... but ... (...) this is part of the problem ... I picked up the 8445 (Indy Storm) ... and I liked the selection of parts (...) (25 years ago, 18-Sep-99, to lugnet.build)
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| | want a LEGO Phone?
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Do any of you want a Lego phone? I've herd about them and always wanted one, but could never find one. One day I had a sudden idea.. what is Lego for? To build with. So I built a Lego phone, and it works just fine. So if you want a Lego phone, make (...) (25 years ago, 18-Sep-99, to lugnet.build)
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| | Touch Sensor Rotation Counter (was: proud of myself (+ some questions))
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(...) If you want to free up your rotation sensor and only have a need to count rotations (as in this application) you might want to try my Touch Sensor Rotation Counter (inspired by Laurentino Martins' design). I find it a bit easier to actually (...) (25 years ago, 17-Sep-99, to lugnet.robotics, lugnet.build)
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| | Re: Six Wide Hummer model
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Brian Sauls wrote in message ... (...) the (...) LDraw part #6583--1x6x3 plate w/ train wagon end. Brian (bbq) Sauls (while looking for something completely different, of course.) (25 years ago, 17-Sep-99, to lugnet.cad, lugnet.build)
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| | Re: proud of myself (+ some questions)
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(...) second (...) As part of a different project, I wrote a snippet of code that would maintain a specific speed regardless of the surface. It's based on a rotation sensor target vs. time. If it's going too slow, the motor speed is bumped up by (...) (25 years ago, 17-Sep-99, to lugnet.robotics, lugnet.build)
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| | Ha! (was Re: proud of myself (+ some questions))
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Got up in the middle of the night, moved the slip-clutch to a different position in the drive train (now attached directly to the motor shaft, in fact). Get much better results -- can drive across carpet without breaking a sweat. Should have thought (...) (25 years ago, 17-Sep-99, to lugnet.robotics, lugnet.build)
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| | Re: Six Wide Hummer model
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(...) I believe it comes in at least black, yellow and dark grey. Maybe light grey too, I forget. (25 years ago, 17-Sep-99, to lugnet.cad, lugnet.build)
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| | Re: Six Wide Hummer model
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(...) I believe it's under the Train category. Steve (25 years ago, 17-Sep-99, to lugnet.cad, lugnet.build)
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| | Re: proud of myself (+ some questions)
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(...) The two motors drivetrain (coupled through a differential) that others suggested is a very practical and effective solution. If you want to try a "different" thing you can set up a vehicle with two or more gears. Less effective but fun to set (...) (25 years ago, 17-Sep-99, to lugnet.robotics, lugnet.build)
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| | Re: Six Wide Hummer model
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(...) Pretty nifty. Is there a way to access the instructions, or am I actually gonna' have to think for myself? :) Brian (bbq) Sauls (25 years ago, 17-Sep-99, to lugnet.cad, lugnet.build)
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