Hi Brett, Nice work so far on the head. I have been planning a 2DOF head for a while. I have decided to use a PSH (PowerSmartHead) design from Wilf. The PSH...
Neil Wilf has a 'lock-on' addition to the PSH in his folder in the files section. (I'd give you the direct link, but I get a huge unwieldy thing, that I know I...
Hello Wilf et al, ... I might doubt my comprehension but never your contribution. As the thread progressed, I found myself in need of clarification. I was ...
Hello Martin, ... Very interesting. Whether or not this is BEAM is up to you, but I hope you will share more details as the project progresses. One quick...
... Sharp work. I admire your skills at working with copper and brass. Two independent Power Smart head circuits will work. Still, with all this talk about...
... that ... One can link to any group's messages, files, or link sections using the group name followed by the desired section. Note the section name must be...
I found a new magazine that may be of interest to BEAMers and hackers. It is called Make (www.makezine.com). There is an article in the 2nd issue on how to...
Hello Tom, Much obliged for the further explanation and reading recommendation. I do have a two servo walker built. I plan on trying out the OISM net before...
Hey All, John, don't get discouraged if math isn't your thing. "Chaos Theory Tamed" still has a great glossary which will help with the terminology in some of...
I need help making a LED Fade In and Out. If i build a simple flip flop and have the 2 leds on one side will that work to fade 2 leds in and out at same time?...
Hey guys, I just designed my first head(or robot for that matter). It is very simple, based on the LM324. It only has a few components, 1 IC, 2 resistors, 2...
Hey Robert, I am interested to see how your head turns out! I love looking at other peoples robots for inspiration and ideas. I have never, however,...
Brett Hemes
hemes@...
Jun 2, 2005 3:49 am
49557
hi guys, i'm a newbie in robotics and is just trying out building beam robots. i am trying to learn through a series of articles BEAM Robots Step-by- step...
This doesn’t really have to do with robotics but I was wondering exactly how fast can you get a stepper motor going? Does anybody think that with a very ...
Hey Bill, Take a look at Wilf's SpectrumRunner or Quad LED Fader You might only need one channel instead of all four. its the closet i can think of right now. ...
It should work control wise, but according to the datasheet the outputs of a LM324 has a short circuit output current of 60 ma. Even if you could run at that...
Hi Muhammad, Welcome to our group. Unlike 74LSxx chips, these 74HCxx cmos logic chips require virtually no input current. This means that the capacitance of...
... Well, there are three phase motors that will go several times that speed, and MIGHT be thought of as a sort of stepper motor. The principles and waveforms...
Hello Robert, I have tried a similar circuit using LM386s (aka the Herbie chip). It works alright but uses a lot of current when the light is equally matched. ...
Ahhh! Thanks, Wolfgang. I'm sure you posted something similar a while back, but I couldn't find it. (Err...gotta admit I didn't look REALLY hard). Now I've no...
Just a fast oscillator is not enough when you want to drive a stepper motor fast. Theoretically it may be possible to drive the motor that fast but there...
Dilip Sathe
sathe_dilip@...
Jun 2, 2005 2:50 pm
49566
Hey Drew, Where can i find it at? In Wilfs file folder? I plan on using it as a bit more advanced POCmark hehe. Consiting of a few leds mounted on some brass...
here is the QuadLEDFader: http://www.solarbotics.net/library/circuits/bot_ornament_qlf.html SpectrumRunner3 is attached. LEDfader is also attached. (wished I...
... I have plans on using some sort of lock-on when both Cds cells are equals light, turn off all power to the op amp and therefore the motor. I would use...
I think it's possible but not very easy, definitely not practical. A hard drive stepper typically goes 7,200 RPM and there are 10,000 RPM drives also, but...
Bill, Here is a vid of the QLF in action... www.robot.plus.com/Vids/qlf.avi 477KB I believe the randomness occurs when the four channels interact. If you were...
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