 | | Re: R/C skid steer test
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(...) Oh yes! it can steer when going forward. With the current gearing though, it spins out. I should try to drive the adder/subtractor input with an 8-tooth gear rather than the current 24 to slow the turning rate down. Though I suppose I couldn't (...) (18 years ago, 7-Feb-07, to lugnet.org.ca.rtltoronto, lugnet.technic)
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| | Re: R/C skid steer test
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(...) Nice! Can it steer while also moving forward, or does the switch work with just a 3-position action (turn right/go straight/turn left)? Could you also use 3 12-tooth gears for the side opposite the 2 24-tooth gears, or did you use the 2 (...) (18 years ago, 6-Feb-07, to lugnet.org.ca.rtltoronto, lugnet.technic)
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| | Re: Mechanical obstacle avoider 2
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"Alexander Holroyd" <holroyd@shaw.ca> wrote in message news:JD16LC.Bos@lugnet.com... (...) That is just excellent! Thanks for sharing it. Bob (18 years ago, 6-Feb-07, to lugnet.technic)
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| | Re: New inline 4 cylinder Pneumatic Engine - No valves.
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"Rick Clark" <jrclark@nospam.aol.com> wrote in message news:JD0Ap8.6Mt@lugnet.com... (...) OK, We are waiting for the details. Really has my head spinning trying to figure out the timing. Bob (18 years ago, 6-Feb-07, to lugnet.technic)
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| | Mechanical obstacle avoider 2
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Here is another 100% mechanical "obstacle-avoiding rover". Like my previous attempt at: (URL) has only one motor and no electronics. This one is based on a simpler principle. The left and right sides operate independently - on each side the wheel (...) (18 years ago, 6-Feb-07, to lugnet.technic)
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| | Re: New inline 4 cylinder Pneumatic Engine - No valves.
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(...) Very interested. I'm always on the lookout for new cam designs. The engine's very cool, although I can't quite visualize the motion. Thanks! Rick C. (18 years ago, 5-Feb-07, to lugnet.technic, FTX)
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| | NXT controlled Red Quad
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(URL) NXT controlled Red Quad> - completed 2-3-07 (URL) controlled Red Quad>> Motorized tail - neck and head (3 URLs) Ultrasonic - Touch and Sound Sensors (URL) Sensor>> (URL) Sensor>> (URL) Sensor>> Custom eye lights courtesy HiTechnic - 68.8 x 36 (...) (18 years ago, 4-Feb-07, to lugnet.announce.moc, lugnet.robotics.nxt, lugnet.technic, lugnet.build.mecha, FTX) !!
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| | New inline 4 cylinder Pneumatic Engine - No valves.
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Not quite the same old inline 4 underneath - this engine is only single acting, because to make it double acting would mean double the amount of t-pieces and cables, which is already a lot. anyway, no valves in this engine at all, just a mechanism (...) (18 years ago, 3-Feb-07, to lugnet.technic, lugnet.announce.moc, FTX) !
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| | New modded parts
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Here's an update on my parts experiments. I've added quite a few Technic parts: (URL) expansion link (URL) , based on a 1x3 thin liftarm, allows an axle or peg to slide in the 1x2 slotted hole. Very useful for steam engines: (URL) (It would go (...) (18 years ago, 2-Feb-07, to lugnet.parts.mod, lugnet.loc.uk, lugnet.announce.moc, lugnet.parts.custom, lugnet.technic)
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| | Re: R/C skid steer test
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(...) Nice idea. I made a similar prototype some time ago, which does not need a battery pack, but which can not have both tracks running in opposite direction. Some images here: (URL) Julien (18 years ago, 2-Feb-07, to lugnet.org.ca.rtltoronto, lugnet.technic)
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