 | | Re: New technique: Cascaded Trinary Pneumatics (aka mid-stop)
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In lugnet.technic, Mark Bellis wrote: <snip> (...) Hmmmm..... this paragraqph mentions two pistons and three switches.... (...) I look forward to seeing them! (...) More ways are better! (...) Me too! (...) Kev (19 years ago, 3-Oct-05, to lugnet.technic, lugnet.robotics)
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| | Re: Video of Cable Shovel In Action
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(...) Re: control, I am using switches and a project box that I purchased at radioshack. Unfortunately this does not allow for proportional control of machine functions, it is bang-bang. You can see the tethered remote in the first two pictures in (...) (19 years ago, 3-Oct-05, to lugnet.technic, FTX)
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| | Re: Liebherr LR-1750
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(...) I get most of my parts from Bricklink. I order them in bulk from a few select sellers, so I can ususally get pretty good deals on most of them. I have even bought 1 x 16 beams in black and red for $0.50 a piece. You just have to be on the (...) (19 years ago, 3-Oct-05, to lugnet.technic)
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| | Re: Road grader
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(...) Nathan, I called my brother in law who owns a large utility company, which has about 4 of the Cat 14H Motor Graders, and he said that the front tires tilt for two reasons. The first is when you are going in forward, it gives you a better (...) (19 years ago, 3-Oct-05, to lugnet.technic)
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| | Re: Liebherr LR-1750
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Alvin, your pictures look good even though they are inside- however It will be nice to see the final ones. Where do order your parts from? Bricklink or Dacta? Is there a way to order those without using paypal? Nathan (19 years ago, 3-Oct-05, to lugnet.technic)
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| | Road grader
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Why do the front tires of Road graders tilt sideways? My guess is that 1)it might lower the blade, it won't lower that much 2) to be able to drive on a tilted surface. If the first is true, it would not lower the blade much unless they tilt more (...) (19 years ago, 3-Oct-05, to lugnet.technic)
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| | Re: Liebherr LR-1750
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(...) have a rather large quantity on hand. I actually have two other cranes that are still assembled along with the two visible in the pictures. One is a smaller model of a Manitowoc 888, which I keep on my desk at work: (URL) the other is a model (...) (19 years ago, 3-Oct-05, to lugnet.technic)
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| | Re: Liebherr LR-1750
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(...) WOW!!!! your cranes are always amazing. i can't wait for more detailed pictures and the weight test. most impressive! you must have a large inventory of parts to keep two huge cranes like that together. bob Bob Kojima Fial Incorporated Telecom (...) (19 years ago, 3-Oct-05, to lugnet.technic)
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| | New technique: Cascaded Trinary Pneumatics (aka mid-stop)
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(...) I have succeeded in directly cascading trinary pneumatic stages (where cylinders stop in the middle). This is a direct development of my mid-stop pneumatic JCB steering mechanism, which I first described here two years ago: (URL) (second (...) (19 years ago, 3-Oct-05, to lugnet.technic, lugnet.robotics, lugnet.announce.moc, lugnet.loc.uk)
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| | Re: New technique: three position piston control
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(...) I tried to make a sequencer using two mid-stop piston configurations, and it didn't work out on paper (at least the cases I tried.) Hmmm...... I think that with a walker, you probably need to add one more switch to instrument full (...) (19 years ago, 2-Oct-05, to lugnet.technic, lugnet.robotics, FTX)
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| | Re: Crazy building moment?
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(...) this. But i'm gonna use conventinal rc parts for power (ie motor, prop, servos) and make the rest of the plane Lego. I don't know how "pure" this is and i don't care. All i want is to make a plane made of mostly Lego fly. I might be naive but (...) (19 years ago, 2-Oct-05, to lugnet.technic, FTX)
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| | Re: New technique: three position piston control
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(...) 6 legs and 3 leg groups is a great idea!! (...) I've think about overshooting the mid point and i don't know sure but i think it will overshoot the mid point whan you link them in serie isn't it?... and when you build it into a walking beast i (...) (19 years ago, 2-Oct-05, to lugnet.technic, lugnet.robotics, FTX)
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| | Liebherr LR-1750
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Well, I finally got around to posting some pictures of the early stages of my latest creation. It is a model of a Liebherr LR-1750 crawler crane to go along with my LR-11200. The pictures are still being "moderated" but here is the link; (URL) (...) (19 years ago, 1-Oct-05, to lugnet.technic)
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| | Re: Video of Cable Shovel In Action
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(...) Ah - understandable. I actually stocked up on them from bricklink, as I so often found them useful. I admit - I tend to agree with you on the noise making it "larger than life". Any chance of videos of the upgraded hoist then? One other thing (...) (19 years ago, 1-Oct-05, to lugnet.technic)
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| | Re: Interview about my hobby on the Dutch TV
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(...) One does not need to understand Dutch to enjoy this video. I watched the video 5 times back to back. Those trucks are huge! That Scania LS111 is the most beautiful Lego truck I have ever seen. The Menck M154 is Motorized, which I did not know (...) (19 years ago, 1-Oct-05, to lugnet.modelteam, lugnet.technic, lugnet.publish, FTX)
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| | Re: Alvin Brant, what is your email address?
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(...) Nathan, check your inbox. If you have one from "bubba brant" then you have it now. Alvin. (19 years ago, 30-Sep-05, to lugnet.technic)
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| | Re: New technique: three position piston control
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In lugnet.technic, Kevin L. Clague wrote: (SNIP) (...) Sadly not, though I'll upload a lot more to my Brickshelf once my digital camera arrives. That will be better than circuits for explaining the positions of offset switches. I had also planned to (...) (19 years ago, 30-Sep-05, to lugnet.technic, lugnet.robotics)
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| | Re: Video of Cable Shovel In Action
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(...) I probably could reduce bulk and noise by using worm gears, but at the time I built that part of the machine I only owned two worms and I needed them in other places. The 'crowd' has two motors and transmissions and I had already used one worm (...) (19 years ago, 30-Sep-05, to lugnet.technic, FTX)
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| | Re: Video of Cable Shovel In Action
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(...) Cool. Could you get less noise and a reduction in space using a worm gear? I seem to remember them being less efficient, but they would give good reduction, and should lower the noise considerably, although they may require placing motors (...) (19 years ago, 30-Sep-05, to lugnet.technic)
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| | Re: Download Problems With Video of Cable Shovel In Action
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(...) That might explain why I had no difficulty - I *always* download first, then watch something, I am just too careful and would not like my browser being crashed by slightly awkward content.. Danny -- (URL) - Build Robots (19 years ago, 30-Sep-05, to lugnet.technic)
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