 | | Re: SSClagorpion
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(...) Like Mark said, there's going to be quite a bit of weight on the main cylinder. That's where you're planning on having several cylinders to hold the weight, right? So, you're looking at about 5 per leg, 8 legs, or 40 cylinders? (plus other (...) (20 years ago, 26-Apr-04, to lugnet.technic)
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| | RCX.NET lets you program directly from .NET code
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Hi guys! Some weeks ago I was trying to build a remote controlled (web page) camera using my RCX and .NET. I tried many libraries and no one worked ok. Then I decided to built my own .NET library, and It worked perfect. Now I'm sharing this with (...) (20 years ago, 18-Apr-04, to lugnet.robotics, lugnet.robotics.edu, lugnet.robotics.rcx, lugnet.robotics.vc, lugnet.technic)
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| | Re: Generic replacement for flex hose
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(...) Yep I agree it's not cheap, but it's WAY cheaper than LEGO flex hose on bricklink - even if you take the cost of paint into consideration! I asked the guy at the model shop I got it from about longer lengths, he said they can't put it on reels (...) (20 years ago, 24-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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In lugnet.technic, Kevin L. Clague wrote: ... (...) ... (...) I notice that the cylinder with the weight on it is the vertical one in the middle, and that it's only a third of the way from the hip to the knee. Is one cylinder going to be enough to (...) (20 years ago, 24-Apr-04, to lugnet.technic)
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| | Re: Generic replacement for flex hose
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(...) There's also this, which may be the same stuff: (URL) is 0.40 each or 10 for 3.75 (0.375 each) I spoke to a supplier at a model railway show today. He was selling individual white styrene 3.2mm tubing about 14" long for 35p (50c?). I didn't (...) (20 years ago, 24-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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Wow, coolness. This is a good day! The leg is comming along nicely. Kevin, thank you for posting your progress. This is great. e (20 years ago, 24-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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This is a repost because FTX messed the URLs up. I'll study up on FTX when I have more time. Larry, can you please remove the previous post that matches this one? Man I love building with LEGO. It is such a relaxing and satisfying hobby. I’ve got a (...) (20 years ago, 24-Apr-04, to lugnet.technic)
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| | (canceled)
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| | Re: Electric motor 71427
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I had one motor with this problem. I have caled LEGO Netherlands and I would get a new motor if I was able to prove I had bought it within less then two years. Greetings Maico Arts "Brian Davis" <brdavis@iusb.edu> schreef in bericht (...) (20 years ago, 24-Apr-04, to lugnet.technic)
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| | Re: Electric motor 71427
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(...) Over what time period? What are you doing with them? I've got 16 (probably half used, off of eBay) in use for a couple years with one problem of this nature popping up (a recently purchased, *used* motor from eBay). Does anyone have any firm (...) (20 years ago, 24-Apr-04, to lugnet.technic)
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| | Re: Electric motor 71427
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(...) I have had six 71427 motors replaced, out of about 20. If you really want to open them, use a small flat-blade screwdriver to lever out the backplate at the bottom. It will be obvious that you've done this though, so it may invalidate the (...) (20 years ago, 24-Apr-04, to lugnet.technic)
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| | Re: Electric motor 71427
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(...) I've tried. a) it's hard to disassemble - you'll ruin it. You have to use drill just to take the motor out. You must carefully open it. b) in my case the permanent magnets inside turned to magnetic dust - there was nothing to clean/repair, it (...) (20 years ago, 23-Apr-04, to lugnet.technic)
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| | Re: The Pneumatic Reference
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(...) Kevin, I know you want to help. Real life caught up with me shortly after this announcement. I got my website permissions for this project about halfway done. I will give an effort to fisih up this weekend. -Orion (20 years ago, 23-Apr-04, to lugnet.technic)
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| | Re: New LEGO cranes website!
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(...) All the pages on my homepage are now translated in English, and some more information of the AK850 are added. (URL) website>. Anders (20 years ago, 23-Apr-04, to lugnet.technic, lugnet.modelteam, lugnet.build, FTX)
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| | Re: New LEGO cranes website!
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(...) Oh ROSCO, that is really a big project you are working on, I am curios to see some more photoes, please share the progress of the project with us, and thank you for the nice respond to my webpage. Anders (20 years ago, 23-Apr-04, to lugnet.technic, lugnet.modelteam, lugnet.build, FTX)
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| | Re: New LEGO cranes website!
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(...) Thanks Josh, nice respond on my work, im happy to hear that someone finds my models interesting. Anders (20 years ago, 23-Apr-04, to lugnet.technic, lugnet.modelteam, lugnet.build, FTX)
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| | Re: New LEGO cranes website!
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(...) Thanks Dennis for posting my new webpage in here, it has given a lot of visitors on my homepage and a lot of nice feedback. Anders (20 years ago, 23-Apr-04, to lugnet.technic, lugnet.modelteam, lugnet.build, FTX)
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| | Re: The Pneumatic Reference
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(...) Hi Orion, You can also find few tips and tricks on my site: (URL) no-return valve, and LEGO compatible air-muscle Regards Chris. (20 years ago, 23-Apr-04, to lugnet.technic)
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| | Re: Electric motor 71427
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(...) Hello, this happens from time to time. Contact Lego Consumer Affairs and they should be happy to replace them for you. I was checking through my motors and found three that were seized. Either from not being used, or for some reason or (...) (20 years ago, 23-Apr-04, to lugnet.technic)
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| | Electric motor 71427
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I have problems with two seized electric motors 71427 which come with 8479 sets. It is impossible to rotate shafts with bare fingers. Could anybody give me detailed guidelines how to safely disassemble them to clean or to repair them? Please, help (...) (20 years ago, 23-Apr-04, to lugnet.technic)
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| | Re: The Pneumatic Reference
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(...) Orion, I have a lot of stuff about pneumatics on my page, and especially brickshelf. My pages are MOC centric though. Brickshelf has lots of different ideas and examples. I'm good with pneumatic CAD designs, and would love to help generate (...) (20 years ago, 22-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) (URL) (20 years ago, 22-Apr-04, to lugnet.technic, FTX)
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| | Re: CSSOH Pneumatic Page?
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(...) Thanks, Yes - there are several links that need to be patched up after the re-location. But rest assured, everything's there. (20 years ago, 22-Apr-04, to lugnet.technic, lugnet.robotics)
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| | Re: CSSOH Pneumatic Page?
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(...) I love your site, cssoh, it's a fantastic reference. Unfortunately, there are a few broken links on there at the moment. One thing I wanted to look at was the instructions for your version of Hempel's double-acting pump, but the pictures are (...) (20 years ago, 22-Apr-04, to lugnet.technic, lugnet.robotics)
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| | Re: SSClagorpion
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(...) Detecting the table edge is not the problem. We can do that with a sensor in the hip/leg in addition to one in the foot. Then, when the leg is extended, and the foot is not touching, there is an error. The problem (as I see it) is that it must (...) (20 years ago, 21-Apr-04, to lugnet.technic)
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| | Re: CSSOH Pneumatic Page?
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(...) Alas, the ozbricks.net server seems to be down - due to heavy deluge? So the page has to be re-located once more to: (URL) there will not be the dreaded *Bandwith Limit Exceeded* problem yet again. (20 years ago, 22-Apr-04, to lugnet.technic, lugnet.robotics)
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| | Re: SSClagorpion
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(...) I have not seen the designs, I'm trying to catch up. Link? (...) Classic. That is a good one. (...) cool. e (20 years ago, 21-Apr-04, to lugnet.technic, FTX)
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| | Re: SSClagorpion
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(...) Probably not. Kevin (...) (20 years ago, 21-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) I could be wrong (missing something) but I think if the switch is flipped immediatly after they raise up, then the legs are in the correct position. If you're walking forward, and switch to reverse right as your foot comes off the ground, you (...) (20 years ago, 21-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) MOC-up! I love it! (20 years ago, 21-Apr-04, to lugnet.technic)
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| | Re: CSSOH Pneumatic Page?
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(...) Hi Orion, I could not find him either,so I contacted him and here it is... (URL) (20 years ago, 21-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) Oh! That's cool, I get it. (...) Right! Right! I get it, that answers the questions. I see. So the Spybots (oh course doi!) wouldn't be in the claws. The motors of the Spybot (located in the head or body or where ever) could trigger the Claw's (...) (20 years ago, 21-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) Welcome back Eric. I'm fine on parts. If you had a peek at my hip/leg prototypes, I was very happy with the hip sweep structure relative to stresses and strains, but not the leg strength with respect to horizontal stresses and strains. As you (...) (20 years ago, 21-Apr-04, to lugnet.technic, FTX)
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| | Re: SSClagorpion
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(...) Nope. It will force the legs to the correct position for walking backwards, and then drop the feet. Kevin (20 years ago, 21-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) Ok, so first of all, the Spybots, although limited, have one VERY cool feature. It's their IR capability. They have three IR sensors, so they can detect the direction of an IR signal from a controller, and/or another Spybot. So, if you set a (...) (20 years ago, 21-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) I'm back I'm back. What can I do? I want to build something. I'm gonna make a concept moc moc up. Pun intended. e (20 years ago, 21-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) Ahem, (...) So we can incorporate the tail's funtionality and weight to help aid the robot by swinging or uncurling the tail so it faces away from the body and is extended back. This shifts the center of gravity away from the front of the (...) (20 years ago, 21-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) Ahh now we are getting somewhere. (...) Hmmm, indeed, or perhaps if we monitor the time it takes for a Leg to hit the ground and then install a logic command that will take action if the leg does not hit the ground in a predetermined amount of (...) (20 years ago, 21-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) Hey that is interesting. How would the robot actually behave in this circumstance? We'll have to build it and teach it and build as necc. e (...) (20 years ago, 21-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) -snip- Good Read. (...) Question please. The Spybot. That's for Directional Control. Can you eloborate? I find this interesting. I have conceived of possible contrivences, I'm interested in dicussing a method. What would the Spybot's two (...) (20 years ago, 21-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion - robotic update
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The latest robotic update: As it stands now, SSClagorpion will: 1) Move: (one of these at a time) A) Walk forward & backward, B) Turn right & left C) Step right & left (move sideways) D) Stop 2) Open & close two claws on it's arms (via pneumatics) (...) (20 years ago, 21-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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|
I re-introduce myself into the fold. Reading, catching up. Meanwhile, what can you all tell me? What can I do? What's going on? Kevin how are you on parts? Steve, are we ok on sensors and controllers? Have we made progress? What can I do? Reading (...) (20 years ago, 21-Apr-04, to lugnet.technic, FTX)
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| | Re: SSClagorpion
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(...) I keep thinking about a rotary type walker, where the feet more or less go in a circle and the body is always moving forward. Please forgive me. :) So, when it lifts one leg group, and someone switches it into reverse, will it put those legs (...) (20 years ago, 21-Apr-04, to lugnet.technic)
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| | Re: 20-Wide model of a Dutch train
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(...) Or the red 1637 or 1837 (1) livery :-) Niels Karsdorp (1) In 1999 the Dutch railway stock was split between NS Reizigers (Passengers) and NS Cargo (Freight). The locomotives class 1600 for NS Reizigers were renumbered to class 1800, keeping (...) (20 years ago, 21-Apr-04, to lugnet.technic, lugnet.trains, lugnet.modelteam)
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| | Re: SSClagorpion
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|
In lugnet.technic, Kevin L. Clague wrote: <snip> (...) Oops: B expand = ~C & ~D & E & F (...) Kevin (20 years ago, 21-Apr-04, to lugnet.technic)
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| | Re: Good String for Your Models
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(...) (URL) (20 years ago, 21-Apr-04, to lugnet.technic)
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| | Re: 20-Wide model of a Dutch train
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(...) AWESOME work! First 1600-style Dutch engine I've seen in LEGO that truly manages to capture the right shape of the nose. (And no, 1876 is not a real number... the Almelo is 1618 but who cares. See (URL) for a list of names/numbers) As for 6-8 (...) (20 years ago, 20-Apr-04, to lugnet.technic, lugnet.trains, lugnet.modelteam)
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| | Re: SSClagorpion
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|
In lugnet.technic, Steve Hassenplug wrote: <snip> (...) Nope. The sequence is: 1. All feet down. 2. Lift one foot group 3. Sweep legs 4. put feet down 5. Lift other foot group 6. Sweep legs So it does not need to walk forward to lift the feet. (...) (...) (20 years ago, 20-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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|
(...) Again, the main goal is to know when the leg is extended, and the foot isn't touching the ground. So, you can mount the foot sensor so it's normally closed (pressed) except when the foot is on the ground and mount the leg sensor so it is (...) (20 years ago, 20-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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|
(...) There are a couple ways that come to mind. If you don't want to know the details, skip ahead... We want to know when the leg is extended, and the foot is not touching the ground. There will be four possible states: 1) Leg up, foot not touching (...) (20 years ago, 20-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) I can think of two was: use two touch sensors, and be able to read the state of both of them (you can do this with a 3rd party multiplex, or cybermaster sensors (which are kinda rare... right, Steve?), or use touch sensors stacked with (...) (20 years ago, 20-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) OK. You are going to put two touch sensors on one port? I thought you needed to know that the leg is fully extended, but not touching. How will you do that with one sensor port? (...) You are right, he needs to balance on the three feet that (...) (20 years ago, 20-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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|
(...) Right. That's listed somewhere in my prior ramblings. It should work fine with 2 inputs (one for each foot) (...) ... (...) We may need to figure something out, here. I think it WILL be a problem. At any given time, he will (could) have only (...) (20 years ago, 20-Apr-04, to lugnet.technic)
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| | Re: Working Fountain on TCLTC layout (Pics)
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(...) I'm glad it uses only the pump cylinders, which means that if the water causes the seals to fail over time it doesn't impact any other components. I tried to make a fire engine once, using the old pneumatic system with a non-return valve and (...) (20 years ago, 19-Apr-04, to lugnet.trains, lugnet.town, lugnet.technic, FTX)
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| | Re: SSClagorpion
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(...) I think that you are right, that they are the same thing. (...) Hmmm.... We would need to know two things to determine we'd hit the edge of the table. 1. The foot is down as far as it will go. 2. The down foot is not touching anything. We (...) (20 years ago, 20-Apr-04, to lugnet.technic)
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| | Re: 20-Wide model of a Dutch train
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(...) I liked it so much I downloaded the whole brickshelf folder (using a handy program). I'm stating the obvious here, but you could always mate Lego with commercial bogies and track in the appropriate scale. Now that would be cool. Steve (20 years ago, 20-Apr-04, to lugnet.technic, lugnet.trains, lugnet.modelteam)
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| | Re: 20-Wide model of a Dutch train
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|
Wow... Cool! It's huge. It's a beauty. Jeroen (20 years ago, 20-Apr-04, to lugnet.technic, lugnet.trains, lugnet.modelteam)
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| | 20-Wide model of a Dutch train
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|
well Dutch.... Ok, based on the French BB7200.... but it's the Dutch railways yellow version, oh yeah: and it has the crest of the city I grew up: Almelo. Don't know if 1876 is a real existing train number, but what the heck. Hello all you (...) (20 years ago, 19-Apr-04, to lugnet.technic, lugnet.trains, lugnet.modelteam) !
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| | Re: SSClagorpion
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|
(...) Is *up* the same as "not down"? I was thinking it was, but that may not be the case. (...) This sounds like we can NOT do the table edge detection stuff, using it's feet. Imagine you're crawling around on your hands and knees, with your eyes (...) (20 years ago, 19-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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|
(...) Actualy we need to sense when it is *up*. (...) As soon as you figure out that a foot is up, you can reverse directions. I'll have to study the state sequence, because there are two non-weight bearing pistons that control the feet, so it might (...) (20 years ago, 19-Apr-04, to lugnet.technic)
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| | Re: Working Fountain on TCLTC layout (Pics)
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|
(...) It actually pumps the water. A large part of the design problem was getting the system to pump an amount of water that wasn't too much and wasn't too little. I'd have to say that the final result was a triumph of trial and error:-) JOHN (20 years ago, 19-Apr-04, to lugnet.trains, lugnet.town, lugnet.technic, FTX)
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| | Re: SSClagorpion
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|
(...) Ok, we [plan to] have a sensor on the front foot, and can detect when that is down. So, no more sensors are required. So you said, the forward/backward must be changed while the feet are in the air. We've been thinking of having a touch sensor (...) (20 years ago, 19-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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|
(...) It is my belief that sideways walking will require a third degree of articulation in the leg/hip structure. It will cause the legs to swing towards and away from the body. By replacing the forward/backward part of the leg sweep with the side (...) (20 years ago, 19-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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|
(...) Ok, so what's required for walking sideways? One switch (= single set of switches, all activated at once) to switch from forward/back/turn to side-to-side? I'm sure that comes to about 16 reverser switches, or something. :) I just happened to (...) (20 years ago, 19-Apr-04, to lugnet.technic)
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| | Re: Working Fountain on TCLTC layout (Pics)
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(...) Is his system actually pumping water through the pistons, or is he using air pressure from them to push water through tubes? (20 years ago, 19-Apr-04, to lugnet.trains, lugnet.town, lugnet.technic, FTX)
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| | Re: Working Fountain on TCLTC layout (Pics)
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(...) That's pretty neat! It will be interesting to see if there's any deterioration of the pneumatic pumps over time, especially the seals. ROSCO (added .technic) (20 years ago, 18-Apr-04, to lugnet.trains, lugnet.town, lugnet.technic, FTX)
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| |
| | CSSOH Pneumatic Page?
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|
There are many references to the CSSOH Pneumatic Page with the URL of: (URL) haven't been able to access it at above URL, I tried a Google search but everything leads back to the above URL. Has this page been moved somewhere or is it down (...) (20 years ago, 18-Apr-04, to lugnet.technic)
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| |
| | Re: Master Builder Creatures (set 10023)?
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|
(...) (URL) From left to right: 1st row: Kofo-Jaga scorpion, Taku eaglet, Hoto firebug 2nd row: Ruki snapperfish, Fikou spider, Hoi turtle 3rd row: Goko-Kahu bird (aka Kewa), Husi pecking bird, Ussal crab 4th row: Kuna snake, Vako rhino, Makika (...) (20 years ago, 17-Apr-04, to lugnet.technic.bionicle, FTX)
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| | Master Builder Creatures (set 10023)?
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|
Can anyone tell me or point me to a list of what the creatures are in the Master Builder set (#10023)? (20 years ago, 17-Apr-04, to lugnet.technic.bionicle)
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| |
| | Re: The latest from Epsilon's Lego Williams range!
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|
(...) I have blue tiles in excess, but not in the sizes I really need. I have white tiles as well, but in order to do some of the trickyness to get the sidepods 1 plate thick I can't use tiles (and the sidepods look really odd if the white is higher (...) (20 years ago, 17-Apr-04, to lugnet.loc.au, lugnet.technic, lugnet.modelteam, lugnet.build.schleim, FTX)
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| | FLL National Championships in the Georgia Dome this week
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This week the FIRST LEGO League National Championships were held in Atlanta at the Georgia Dome (home of the Atlanta Falcons). So since the event was in my backyard I figured it would be fun to see what the event was all about. I got a position as a (...) (20 years ago, 17-Apr-04, to lugnet.technic, lugnet.general, lugnet.loc.us.ga)
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| | Re: SSClagorpion
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|
(...) I can see the good sense in putting the hip switches on their own sets of levers, as your pics show. That way, the force required for them and for the legs is independent, so there's no extra load on the switches. I am used to mounting the (...) (20 years ago, 16-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) Funny! My presentation at Brickest (classic?) was named Pneumatic Magic. When I started on quad242 I thought the cool thing was going to be the ability to make it modify its behavior to go backwards and turn, but the hardest part was the "no (...) (20 years ago, 16-Apr-04, to lugnet.technic)
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| | Re: The latest from Epsilon's Lego Williams range!
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(...) ... (...) You need to use slopes and tiles more, to smooth out the surface. Don't you have some blue and white slopes and tiles? Cheers, (URL) Sci-Fi LEGO> (20 years ago, 16-Apr-04, to lugnet.loc.au, lugnet.technic, lugnet.modelteam, lugnet.build.schleim, FTX)
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| | Re: SSClagorpion
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|
(...) That makes sense, but you may want to take a look at the video of Kevin's walkers: (URL) you see, at the end of each stride, all four legs are at the bottom of their travel. So while it is true that half the legs will have to support all the (...) (20 years ago, 16-Apr-04, to lugnet.technic)
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| |
| | The latest from Epsilon's Lego Williams range!
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|
Hello all! Not an aussie icon, but in the spirit of breathing some life into loc.au: (URL) the new williams fw26 (this is the 2004 williams for those who don't follow f1 all that much) I have finally developed the perfect MUCUS technique :) there (...) (20 years ago, 16-Apr-04, to lugnet.loc.au, lugnet.technic, lugnet.modelteam, lugnet.build.schleim, FTX)
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| | Re: SSClagorpion
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|
(...) A few things spring to mind about this: 1. I usually run robots from a car tyre air compressor at 25PSI. This gives good performance with 1-2 large cylinders moving at a time. Using 6 large pump cylinders as the air source, performance is half (...) (20 years ago, 15-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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|
(...) Well Steve, it might and it might not. Given 18 bits of state (two bits/pistons per leg plus two extra), we could have a total of 256K possible combinations of leg positions. We only want about about 10 of them. If we start out the pistons in (...) (20 years ago, 16-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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|
(...) Yes, I'd rather see a solid, strong, slow robot over a fast robot that succeeds in tearing itself apart. :) (...) That's the throw of the switches, right? Not the throw of the cylinders on the legs. So the legs will "move" at the same speed, (...) (20 years ago, 15-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
|
|
In lugnet.technic, Kevin L. Clague wrote: <snip> (...) So using #1 axle connectors as the linkage, we get a reduced piston expansion, down to 86% of maximum. Using technic axle joiner perpendicular, we can reduce the range to 70% of maximum. I can't (...) (20 years ago, 15-Apr-04, to lugnet.technic)
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| | Re: 6293 rc receiver Auxiliary output possible?
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thanks for checking Mark! that is more help than i expected. too bad it's not going to work. guess i'm going to have to buy another receiver from bricklink if i really want the extra output. bob (...) Bob Kojima ko@fial.com Fial Incorporated Telecom (...) (20 years ago, 15-Apr-04, to lugnet.technic, lugnet.robotics)
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| | Re: SSClagorpion
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(...) Thinking about this more....... One of the reasons that makes this slow is the inherent piston friction which combined with pressure defines the rate of expansion and contraction. So the rate is not very negotiable. But using rate * time = (...) (20 years ago, 15-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) <snip> (...) Well, I know of situations where LEGO has asked some people to recreate their MOCs for them. You know you have arrived if that happens. (...) Kevin (20 years ago, 15-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) ... (...) With twice the pistons, the pressure is not as great, but the volume of air would be doubled, right? Using logic, not physics, I think once the pressure is built up (to 13 psi) the compressor may have to do less work to keep it (...) (20 years ago, 15-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) Mark Riley was nice enought to point out the errors in my math. The area of the piston care is pi * r^2 = 0.2 Four times that is 0.8. So the minimal pressure needed is 10 pounds / 0.8 square inches or, 12.5 pounds per square inch. Still well (...) (20 years ago, 15-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) Hmmmm.... interesting question. I don't know much pneumatic theory, but..... Pressure is in pounds per square inch. So if we know the area of the face of a piston, and we know the pressure we can determine how many pounds a single piston can (...) (20 years ago, 15-Apr-04, to lugnet.technic)
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| | carousel on MOCpages
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I've finally finished the write-up of my carousel at (URL) to .spybotics because it's Spybot powered. (20 years ago, 15-Apr-04, to lugnet.robotics.spybotics, lugnet.technic, lugnet.town)
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| | Re: SSClagorpion
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(...) That's up to you. I'd like to see it move as fast as possible, but I think even if we make it as small as possible, it's going to weigh at least 10 pounds. 3 or 4 pounds will be the RCXs, battey box, Spybot, and motors. So, what will it take (...) (20 years ago, 15-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) This is a reality given large LEGO pneumatic pistons, but I knew this when I started this project by inviting Eric to join me. (...) Kevin (20 years ago, 15-Apr-04, to lugnet.technic)
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| | Re: SSClagorpian
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(...) That would probably convince me, if I knew who Tim was, and if I ever went to BrickFest. I'm not that dedicated an AFOL I guess. (20 years ago, 15-Apr-04, to lugnet.technic)
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| | Re: The Clague - Sophie Project
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(...) Well 16 segments means 32 pistons and 64 switches. I have that much easily, but the bulk of it is in-model in inchworm, quad242 and PHD. PHD is too expensive to keep around once I get it all hosed together and working. It has 48 switches in (...) (20 years ago, 14-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) Nope, but we could just eliminate #1 by just turning of the compressors. (...) It is still on the list, I was just leaving it out of the equation for a moment. (...) Yes, slow, more pressure, or more force. Shall I assume four pistons per leg? (...) (20 years ago, 14-Apr-04, to lugnet.technic)
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| | Re: 6293 rc receiver Auxiliary output possible?
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(...) Hi Bob, I opened two of my receivers, one was from set 8376 Hot Flame and the other was from set 8475 RC Buggy (I actually purchased this second receiver from BrickLink just to get the third output). The first thing I noticed is that the motor (...) (20 years ago, 14-Apr-04, to lugnet.technic, lugnet.robotics)
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| | Re: The Clague - Sophie Project
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(...) A sidewinding snake I saw on TV was in an M shape, with effectively two feet on the ground all the time. You'll have to synchronise four segments for each advancement of the 16-stage flip-flop! This is gonna bankrupt you and outstock TLC of (...) (20 years ago, 13-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) That was my second choice. Ok, three motors. If it can be worked out, we COULD combine #1 and #3, right? Leaving: 1) Function (walk/turn) 2) Direction (forward/backward/stop) I assume both of these groups are controlled only by motors, and at (...) (20 years ago, 14-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) Yes. (...) No. (...) No (...) No. Ignoring side walking for a moment..... 1) One motor to turn a single switch on/off. This allows or prevents walking. 2) One motor to flip 8 switches. This one controls walking vs. turning. 3) One motor to (...) (20 years ago, 14-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) Ok, so I'm thinking about motors to flip pneumo-switches. Each of these may be one or more switches, all activated at the same time. 1) Switch for Start/Stop (on/off) When this switch is "on" the scorpion will be walking. (legs going up/down + (...) (20 years ago, 14-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) Gents, I am going to upstate NY to prepare for an art show I have this weekend. I will be out of the loop for a few days. I look forward to picking this up when I return. e (URL) (20 years ago, 14-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) Unfortunately, whenever I see SSClagorpion I think of a boat. Maybe, we should give Eric the E and call it SCorp-Eon. :) Or, it could be SCHorpion. (20 years ago, 14-Apr-04, to lugnet.technic)
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| | Re: SSClagorpion
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(...) I like SCorPeon..... It has a nice ring to it. (...) Kevin (20 years ago, 14-Apr-04, to lugnet.technic)
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