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I've just started to play with this set. WOW!! despite my earlier post about the B I G box but lots of empty space i like this set..... for the parts. WOW. Lego has come VERY VERY close to my "dream" of a RC lego "system" when I first saw the very (...) (21 years ago, 28-Dec-02, to lugnet.org.ca.rtltoronto)
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| | Re: 8475 -- a good buy
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In lugnet.org.ca.rtltoronto, Chris Magno writes: <snip> (...) Its a very fun set, and it gets better when you throw the RC and motors 'n stuff into the supercar! :) Dave K (21 years ago, 28-Dec-02, to lugnet.org.ca.rtltoronto)
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| | Re: 8475 -- a good buy
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(...) Dave, I've just messed around with the motors.... they have 2 out's one spins at 1200 RPM and the other 1700. when I added my famous worm to 24 and added it to my "kick your butt" king of the hill r13 game... I was saddened. these motors seem (...) (21 years ago, 28-Dec-02, to lugnet.org.ca.rtltoronto)
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| | Re: 8475 -- a good buy
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(...) There's a problem though. The mappings are weird. The second regular 9V out is mapped to the bottom controller paddles IIRC. The first regular out is mapped to the... RH top stick? And the steering output is LH top stick? That's doesn't really (...) (21 years ago, 28-Dec-02, to lugnet.org.ca.rtltoronto)
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| | Re: 8475 -- a good buy
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(...) I agree. (...) Why didnt _I_ think of that... (...) Except that the one for the drive wheels is also proportional - ie, if you push the stick in the controller a little bit, they go slow, and you you push it a lot, they go fast. I think there (...) (21 years ago, 28-Dec-02, to lugnet.org.ca.rtltoronto)
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| | Re: 8475 -- a good buy
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(...) As soon as i read this I had to try it.... I'm so excited... (sec.) . .. .... ..... ........ Your wrong. :( I added a motor, clicked it into my RPM-o-Meter and just nudged the stick a tinsy-tiny little bit.... NOTHING! then I smooched it just (...) (21 years ago, 28-Dec-02, to lugnet.org.ca.rtltoronto)
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| | Re: 8475 -- a good buy
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(...) hmm. I'll have to think about this, but I'll bet, with a little work and a couple polarity switches, you could make an AB skid steer. I think it would take some fancy wiring (like the 18v thing) and some precice gearing, but think about this: (...) (21 years ago, 28-Dec-02, to lugnet.org.ca.rtltoronto)
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| | Re: 8475 -- a good buy
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(...) When you get stuck in the corner, sheesh. Calum (21 years ago, 28-Dec-02, to lugnet.org.ca.rtltoronto)
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| | Re: 8475 -- a good buy
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(...) Am not!! (...) Were you using a geared 9v motor non loaded? If so, then it's not surprising that you noticed no difference. Try it with a load. I tried it with a weight at the end of an arm, and at one point on the controller it just buzzed, (...) (21 years ago, 28-Dec-02, to lugnet.org.ca.rtltoronto)
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| | 8475 -- motors and steering Oh My
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(...) Yes I was testing on an unloaded 9V geared motor. Thats how my RPM-o-Meter works best. (...) I just re-did this test and you are correct. when you load a geared motor (i put a 40t gear on the motor and put friction on the teeth) then you can (...) (21 years ago, 28-Dec-02, to lugnet.org.ca.rtltoronto)
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| | Re: 8475 -- a good buy
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(...) IF you get stuck in a corner, then your opponent comes up behind ya and WACKS ya. -- Chris (21 years ago, 28-Dec-02, to lugnet.org.ca.rtltoronto)
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| | Canada, a great place to live (was 8475 -- a good buy)
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(...) 10 hour drive just too much.... You could always come live in Canada. Swear an oath to the Queen, and never worry about medical insurance again. Plus Lego is Cheaper here. rtlToronto, doing our little part to reverse the "brain drain" (URL) (21 years ago, 28-Dec-02, to lugnet.org.ca.rtltoronto)
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| | Re: 8475 -- motors and steering Oh My
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It is indeed PWM. I got out my oscilliscope and checked it, and here are the results I got: At setting 1 (closest to off): Th: 1ms Tl: 2ms Tt: 3ms 9Vpp At setting 2: Th: 2ms Tl: 1ms Tt: 3ms 9Vpp And at full on, it's just 9v DC. (...) (21 years ago, 29-Dec-02, to lugnet.org.ca.rtltoronto)
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| | Re: 8475 -- motors and steering Oh My
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(...) cool. Thanks Trevyn. now if only I had an O-scope and knew what Th, T1, and Tt meant?? ;) Chris (21 years ago, 29-Dec-02, to lugnet.org.ca.rtltoronto)
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(...) It doesn't matter. DMM's are not good at measuring pulsed signals. (unless you have one of the more expensive true-RMS meters which can calculate the average of a non-sinusoidal waveform. You really need an oscilloscope for this. (...) It will (...) (21 years ago, 30-Dec-02, to lugnet.org.ca.rtltoronto)
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| | Re: 8475 -- motors and steering Oh My
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(...) Th - Time signal is High Tl - Time signal is Low Tt - total time ------________ Th Tl <---- Tt --------> Matthias Jetleb P.S.: Th/Tt is defined as the duty cycle, expressed as a percent. Therefor: Th=2ms, Tt=3ms = 66% duty cycle. This is (...) (21 years ago, 30-Dec-02, to lugnet.org.ca.rtltoronto)
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| | Re: 8475 -- a good buy
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(...) This reminds me of a go-cart race I was involved in once. 9 or 10 of us rented the place, and it turns out one person was a maniac - always smashing into people. Hyperaggressive when passing. Annoyed a lot of us. So inevitably, he'd end up (...) (21 years ago, 30-Dec-02, to lugnet.org.ca.rtltoronto)
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| | Re: 8475 -- a good buy
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(...) Who said anything about racing? :) I think Chris has this Battlebots esque tanks with big hammers thing in mind... Calum (21 years ago, 30-Dec-02, to lugnet.org.ca.rtltoronto)
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| | Re: 8475 -- motors and steering Oh My
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Still no baby..... (...) umm, thanks Matt.... but I did put in the winky face after my last statement.... and since you did bring it up my DMM does do true RMS. that's why I have never felt the need for an o-scope. my electronics projects just don't (...) (21 years ago, 31-Dec-02, to lugnet.org.ca.rtltoronto)
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| | Re: 8475 -- a good buy
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All the more reason to want to be fast & agile. Jeff E (...) (21 years ago, 31-Dec-02, to lugnet.org.ca.rtltoronto)
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