 | | Single acting pneumatics with spring return
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Hello again, I think I should have another go at this... I wanted to say "Check this out, I found an interesting application for the old pneumatic cylinders" What it came out sounding like was "Mr. Soh was wrong! Look at me prove him wrong!" Sorry (...) (23 years ago, 6-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: Strengthening Gears
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I hahe been lurking on this conversation for a bit. Here are some random thoughts: Blocks, Gears and Axles use three different materials. By that I mean the are differnet grades of the same material or totally different materials. I lean towards (...) (23 years ago, 6-Mar-02, to lugnet.technic)
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| | Williams F1
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Heya all, will be the Williams F-1 car produced ? If so, when ? And for which price (cca) will it be saled ? Thanx. Rene (23 years ago, 6-Mar-02, to lugnet.technic)
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| | Re: Strengthening Gears
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(...) This is just a wild thought, but what if the boiling process doesn't alter the the strength of the material, but helps to reduce stress concentration points? If the gear deforms ever so slightly (i.e. negligible deformation- no change when (...) (23 years ago, 6-Mar-02, to lugnet.technic)
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| | Re: Pneumatics: the old and the new
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(...) And most other pneumatics systems do too, but its easier if you have a tank in which you have a high pressure (or a low pressure). (23 years ago, 6-Mar-02, to lugnet.technic, lugnet.robotics)
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| | New moc: 80% completed Atlas Copco Roc F7cr
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hello everyone! For almost a year after I first planned to build this machine, its finally 80% completed. the only problems I have to struggle with know, are the rotateable boom; how to reinforce it, and make the rear end completed, and adding a few (...) (23 years ago, 6-Mar-02, to lugnet.technic)
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| | Re: Strengthening Gears
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(...) I talked to my co-worker who's a rock climber about this interesting matter and he claims that climb ropes get better and better from stress regarding max weight/pull capabilites, however they also get crispier. Climbing ropes are generally (...) (23 years ago, 6-Mar-02, to lugnet.technic)
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| | Re: Melting Point of ABS (Re: Strengthening Gears)
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(...) No, it's thermoplastic. But too much heat, or even localized hot spots, can scorch it and make it unusable. (23 years ago, 6-Mar-02, to lugnet.technic)
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| | Re: "One set" pulling challenge
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(...) Okay, ignore that message, Ross just had to go and make a spring motor so he does not use any external parts. Actually cool as an iceberg :) /Tobbe (URL) (23 years ago, 6-Mar-02, to lugnet.technic)
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| | Re: "One set" pulling challenge
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(...) Not that I want to spoil anything but the rules imply only to use one set and 8466 does not contain a motor. But perhaps you're pulling for something else? Sorry if I was unclear on this :( /Tobbe (URL) (23 years ago, 6-Mar-02, to lugnet.technic)
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| | Re: Strengthening Gears
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(...) Personally I counted on a big melt and hoped it would not ruin my kitchen hardware :) /Tobbe (URL) (23 years ago, 6-Mar-02, to lugnet.technic)
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| | Re: Pneumatics: the old and the new
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(...) Hey, don't blame me if it should fall off though ;-) Speaking of wall climbing robots, does anyone have or seen one of these 4-legged Climb@Tron creatures shown at (URL) look kinda cute especially Vertibug. And at $14.95 each, they're a lot (...) (23 years ago, 6-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: lube
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(...) Interesting, what brand did you use? I tried some of this from a spray can (I can't remember the brand offhand) and it made things worse! Essentially things seemed to get a lot more jittery; I found good way to test the effectiveness was to (...) (23 years ago, 6-Mar-02, to lugnet.technic)
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| | Re: Pneumatics: the old and the new
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(...) Hi, those who have the old pneumatics and a couple of the blue air tanks may want to try the experimental setup at (URL) it! And I suspect the window walker critter would still work without the air tanks :-) (23 years ago, 6-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: Too much crane?
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Impressive! Like so many others, I just wanted to jump in and say outstanding work. Ashley Glennon (23 years ago, 6-Mar-02, to lugnet.technic)
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| | Re: Melting Point of ABS (Re: Strengthening Gears)
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(...) That explains it. And it smells pretty bad too - that's what alerted me when I had my "accident". ROSCO (23 years ago, 6-Mar-02, to lugnet.technic)
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| | Re: lube
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(...) I dunno. Does it still squeak even when the pumps are disconnected? I've noticed with my compressors, the extra back pressure on the plunger causes more squeaking, which disappears when pressure is released. I'm not even sure whether it's the (...) (23 years ago, 6-Mar-02, to lugnet.technic)
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| | Re: Melting Point of ABS (Re: Strengthening Gears)
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IIRC, ABS is a thermoset plastic. The first time you melt it it's workable at a relatively low temp and solidifies nicely, but heating it again won't melt it, only deform it and finally burn it : ( -Xanthra47 Ross Crawford <rcrawford@csi.com> wrote (...) (23 years ago, 6-Mar-02, to lugnet.technic)
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| | lube
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Hi everyone, I noticed that teflon was not listed in the lube faq. It can be purchased at bicycle shops in an aerosol can or dropper for under 10 dollars. It is a dry lubricant that is clear and doesn't attract dust. I used it with my clock and was (...) (23 years ago, 6-Mar-02, to lugnet.technic)
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| | Re: Strengthening Gears
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Wow ! Interesting results. I would have bet my firstborn that it would weaken them. Anyone else try this ? I might just to see if Tobbe's result is a fluke... (23 years ago, 6-Mar-02, to lugnet.technic)
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