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(...) ... (...) That's what I was trying to say above. Sometimes, I think faster than I type, so all the details don't make it to my fingers... Yes, adding pistons at various angles will help even out the "work" required. So, 2 large pistions at 180 (...) (20 years ago, 2-Jun-04, to lugnet.technic)
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| | Re: SSClagorpion - Compressor
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(...) Hi Benton, In my experience small pistons do not control switches very well. They only produce 1/4 the force a large piston does. I've made one small piston walker (URL) . It uses two pistons per switch, and the switches were chosen (...) (20 years ago, 2-Jun-04, to lugnet.technic)
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| | Re: SSClagorpion - Compressor
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(...) One thing not represented in your calculations is time. Compressing one large pump takes more force than it takes to compress one small pump. With six small pumps seperated by 60 degress of phase. We can compress/expand six small pumps in the (...) (20 years ago, 2-Jun-04, to lugnet.technic)
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| | Re: SSClagorpion - Compressor
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(...) Ok, so my co-worker (with a degree in physics) said (after many calculations) that the Work is directly related to the Volume. Assuming 6 small pistons pump the same volume as 1 large piston, it will take the same amount of work. Keep in mind, (...) (20 years ago, 2-Jun-04, to lugnet.technic)
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| | Re: SSClagorpion - Compressor
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Often, at work on Friday afternoon, we have informal discussions about stuff completely unrelated to work. This morning, I stood up and looked over my cube walls (not hard, they're only 4 ft tall) and said I had a question. I didn't get much (...) (20 years ago, 2-Jun-04, to lugnet.technic)
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| | Re: SSClagorpion - Compressor
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Are you going to make sure that all your control logic is done with small pistons? That would seem to save a lot of air, and thus perhaps also speed the system up quite a bit. (20 years ago, 2-Jun-04, to lugnet.technic)
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| | Re: SSClagorpion - Compressor
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(...) Not necessarily. If they're compressing in a rotating series, your output at any given moment is much smaller than if they were going off all at the same time, and the more positions you can get in the series, the steadier your stream of (...) (20 years ago, 2-Jun-04, to lugnet.technic)
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| | Re: SSClagorpion - Compressor
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(...) Well that depends on how they're routed down the line. If they all pass through a single hose at any point, bang goes your bandwidth. ROSCO (20 years ago, 2-Jun-04, to lugnet.technic)
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I finally had some LEGO time. Given the rate that RC Racer motors suck up current, Using two pumps with two motors and two battery packs, is about the best I can do. I did some measuring and calculating (only outer diameters :^( A large piston has (...) (20 years ago, 1-Jun-04, to lugnet.technic)
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| | Re: LEGO on TechTV
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(...) I'm not sure how well this will work. I just spoke with them, and in addition to the segment, the robots will be playing against people (staff & audience) during the entire show. How big is a one hour show, when converted to mpeg? :) Steve (...) (20 years ago, 1-Jun-04, to lugnet.mediawatch, lugnet.robotics, lugnet.technic)
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