 | | New MOC added: Scania R143 with steered trailer and loading crane
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I just added this model to my website. It's not new because I already built it eight years ago. (URL) Scania R143H> (URL) (19 years ago, 22-Oct-05, to lugnet.modelteam, lugnet.technic, lugnet.announce.moc, FTX) !
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| | Re: High Failure Rate of New Type 9V Geared Motor
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(...) I'm guessing it may also be cheaper / easier to manufacture. ROSCO (19 years ago, 22-Oct-05, to lugnet.robotics, lugnet.technic)
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| | Re: High Failure Rate of New Type 9V Geared Motor
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(...) I suspect it's bad design. Perhaps the way the brushes rub on the PCB as pointed out by Philo ((URL) "This higher friction explains why 43362 stops faster when you give the shaft a twirl, and why its no-load current is higher (9mA vs. 3.5mA)". (...) (19 years ago, 22-Oct-05, to lugnet.robotics, lugnet.technic)
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| | Re: High Failure Rate of New Type 9V Geared Motor
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(...) I sent Nathanael Kuipers an email regarding the motors and asked him to forward it to the proper person. Do you think it is excessive torque, excessive use, or just a bad piece design that causes this problem? Nathan (19 years ago, 21-Oct-05, to lugnet.robotics, lugnet.technic)
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| | Re: Idea Books 8888 and 8889
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(...) Very interesting. Thanks! Keep em coming! (19 years ago, 21-Oct-05, to lugnet.technic, FTX)
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| | Re: Gray code vs. Binary
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(...) Haha! I've found a better way to do it, and a better drawing :-) Take my Pick and Place robot circuit: (URL) out the Elbow pistons and switch and connect the Elbow piston inputs to the Wrist piston instead (effectively draw the horozontal (...) (19 years ago, 20-Oct-05, to lugnet.technic)
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| | Re: Gray code vs. Binary
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(...) Hi Mark, You are right. I've had the wrong term in my head all this time. Gray code is not what I was thinking about I guess...... I'll have to go study Gray code better, and then study your descriptions. Man I wish you had a scanner and could (...) (19 years ago, 20-Oct-05, to lugnet.technic)
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| | Re: Gray code vs. Binary
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(...) Hi Kev, I think the cheapest way to do 3 or 4-bit binary with pneumatics would be to use gray code and convert it. Gray code always changes the least significant bit possible in order to achieve a change to a new state, so there will always be (...) (19 years ago, 20-Oct-05, to lugnet.technic)
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| | Re: Idea Books 8888 and 8889
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When I was approx. 16 years, I built (URL) this> (book 8889, pages 38-41). Lousy picture, I know (my dad didn't want me to take a picture myself). Trying to rebuild something without building instructions was always more challenging... ;-) If I (...) (19 years ago, 20-Oct-05, to lugnet.technic, FTX)
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| | Gray code vs. Binary
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To all those pneumatic gurus..... The classic pneumatic timing circuit made with one switch per piston changes state following gray code (i.e. only one piston changes at a time). This means that a two piston timer goes through these states: (...) (19 years ago, 20-Oct-05, to lugnet.technic)
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