 | | Re: CD auto feeder project —Steve Baker
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| | | (...) I always forget about the way-back machine. (...) Well, re-reading it, it's evident that he's using old pneumatic parts that you can't get anymore. However, his problem was to produce a really strong vacuum - enough to hold the whole weight of (...) (20 years ago, 4-May-04, to lugnet.robotics)
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| | | | | Re: CD auto feeder project —Mark Riley
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| | | | | (...) Fortunately, the situation isn't quite so dire: (URL) actually quite a bit more available now than when I picked up much of my old pneumatic stuff a year or so ago. Mark (20 years ago, 5-May-04, to lugnet.robotics)
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| | | | | | | Re: CD auto feeder project —David Glynn
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| | | | | | Thanks Mark! This is turning out to be easier then I thought - now if only I could remember where I hide my credit card! "Mark Riley" <markril@hotmail.com> wrote in message news:Hx7x2F.p9u@lugnet.com... (...) found (...) (URL) > (...) pneumatic (...) (20 years ago, 5-May-04, to lugnet.robotics)
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| | | | | Re: CD auto feeder project —David Glynn
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| | | | Steve, thanks for the pointer, I'll be spending some time going over Rob's window walker figuring out how he did things. (...) I'd be suprised if they were! Though I did find the perfect suction cup on-line: (URL) get more perfect then that. (...) (...) (20 years ago, 5-May-04, to lugnet.robotics)
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| | | | | | Re: CD auto feeder project —Steve Baker
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| | | | (...) >> suction and pushing the cylinder down again releases it. (...) Yes - the yellow ones on the left. The 'normal' use for those things is to pump air in the bottom tube to make the cylinder extend - or pump air in the top to make it contract. (...) (20 years ago, 5-May-04, to lugnet.robotics)
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| | | | | | RE: CD auto feeder project —Andy Gombos
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| | | | | (...) Don't those hard plastic tubes fit over the cylinder connectors? I know they can bind the flexible hoses, so a small "boot" to bridge the gap wouldn't be able to suck together very much. That would reduce the problem of length, at least. Andy (20 years ago, 6-May-04, to lugnet.robotics)
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| | | | | | Re: CD auto feeder project —Brian Davis
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| | | | (...) Note you can also use the same effect to make an all-Lego suction pump (without the checkball valve). The trick is to cycle a piston and a standard valve together. Hook the central port on the valve to the airtank (or whatever else you want to (...) (20 years ago, 9-May-04, to lugnet.robotics)
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