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(...) Doesn't the H8/300 have a mode where you can scan up to 4 channels at once? Ralph (22 years ago, 12-Oct-03, to lugnet.robotics.rcx.legos)
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| | Re: Mechanical pneumatic piston
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(...) With four orientations that would be 0, 90, 180 and 270. However, you could get away with eight if you have one side of the worm gear at 0, 90, 180 and 270 and the other at 45, 135, 225 and 315, you'd just need to turn around every other gear (...) (22 years ago, 12-Oct-03, to lugnet.robotics)
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| | Re: Mechanical pneumatic piston
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(...) Very nice analysis! All seems perfectly logical to me! (...) The other problem is not having an axle long enough to put them on. So I connected them together with axles butting each other about halfway through each worm gear. And with 14 worm (...) (22 years ago, 12-Oct-03, to lugnet.robotics)
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| | Re: Mechanical pneumatic piston
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I have given this question some thought in the past and I came up with a theory. First of all some gear geometry background. Lego gears have 8 teeth per Lego unit (aka stud) of pitch diameter, the effective diameter to where the gears mesh. Using (...) (22 years ago, 12-Oct-03, to lugnet.robotics)
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| | Re: disable LNP
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(...) Mark is correct: I made the following two changes which will cause the sensors to be polled at 1KHz: in systime.c; added "bset #0x5,@_AD_CSR:8"; extern void clock_handler(void); ... sys_nohigh: mov.w #0x5a06,r6 ; reset wd timer to 6 mov.w (...) (22 years ago, 12-Oct-03, to lugnet.robotics.rcx.legos)
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| | Re: disable LNP
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(...) Sorry, nothing has made it to an official release. I think Joseph Woolley has some code where he reduced the sample rate to 1KHz (I think). You might try contacting him about it. Mark (22 years ago, 11-Oct-03, to lugnet.robotics.rcx.legos)
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| | Re: Mechanical pneumatic piston
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Restating for clarity, (I hope) I think the issue is the + shaped central hole. If you mounted these worm gears on an axle which requires them to be mounted at 0 (180), 45, 90, and 135, then of course you can't turn the gears anywhich way to line up (...) (22 years ago, 11-Oct-03, to lugnet.robotics)
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| | Re: Mechanical pneumatic piston
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(...) Okay, I understand better now. So unless you have two worms made consecutively, you're stuck. Thanks! :) ~Mike (22 years ago, 11-Oct-03, to lugnet.robotics)
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| | Re: Vision Command can see IR!?
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(...) Have a look here. (URL) (22 years ago, 11-Oct-03, to lugnet.robotics.vc)
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| | Re: Mechanical pneumatic piston
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(...) The gear rack has an advantage in that the teeth are parallel to the pinion gear's teeth. That ain't the case for the worm gear. The pitched worm interfaced to a pinion with normal straight teeth eats up most of the slop that you normally get (...) (22 years ago, 11-Oct-03, to lugnet.robotics)
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