Search found 11 matches
- Tue Mar 16, 2004 11:49 am
- Forum: Robotics
- Topic: processor preferences?
- Replies: 5
- Views: 5000
Re: processor preferences?
seeing as how this is for a course, rather than personal hobby, you might not have to worry too much about cost of the programmer vs. cost of the chip. you may only need one or two programmers that the students share during class time, meaning that the real cost savings over several years will come ...
- Thu Oct 02, 2003 10:23 am
- Forum: General Discussion
- Topic: RPM regulation
- Replies: 55
- Views: 26607
Re: RPM regulation
my suggestion: get a small risc microcontroller with PWM output and at least one external interrupt. should be pretty easy.
- Fri Sep 26, 2003 4:56 am
- Forum: Computer Programming
- Topic: code grabber
- Replies: 2
- Views: 3721
Re: code grabber
for hard-core "code-grabbing," learn assembler and go here: http://www.thefreecountry.com/programmi ... lers.shtml
- Thu Sep 25, 2003 5:09 am
- Forum: General Discussion
- Topic: physics ?
- Replies: 21
- Views: 9530
Re: physics ?
hehe as you can see, rick, i got the spanking right back.
- Wed Sep 24, 2003 10:34 am
- Forum: General Discussion
- Topic: physics ?
- Replies: 21
- Views: 9530
Re: physics ?
as several people here had mentioned and several people (in some cases the same ones!) had failed to keep in mind, if the ice cube is traveling in a vacuum, it will NEVER melt. liquid water needs pressure in order to exist. so all you have to worry about is the change from solid to gas. you might al...
- Sat Sep 13, 2003 8:14 am
- Forum: Robotics
- Topic: need inexpensive linear motion
- Replies: 12
- Views: 8634
Re: need inexpensive linear motion
ooo, creative
- Sat Sep 13, 2003 8:04 am
- Forum: General Discussion
- Topic: automatic transmission
- Replies: 10
- Views: 5169
Re: automatic transmission
hmmm... good idea
- Thu Sep 11, 2003 10:42 am
- Forum: General Discussion
- Topic: automatic transmission
- Replies: 10
- Views: 5169
Re: automatic transmission
wow... i'm really impressed with the number and quality of these responses. i plan to make the clutch pneumatic, because i still want to be able to drive it like a standard manual when i want. russ, i like that brake idea, i might add that feature later if i get around to it. no_vice, i think you ar...
- Wed Sep 10, 2003 1:59 pm
- Forum: Robotics
- Topic: need inexpensive linear motion
- Replies: 12
- Views: 8634
Re: need inexpensive linear motion
i think it's have to be a pretty hefty solenoid to produce 5 lbs of force... i'd definitely go with a servo, possibly from a hobby shop (to be used on large RC planes maybe), or one made from stephen's suggestions
Re: Vision
chessman has the right idea, but instead of diffracting the laser into dots, pass it through a line generator (basically a glass cylinder) to make a horizontal line. then mount the CCD camera sideways a little bit above the laser. what you'll get is an image of a vertical line on the screen. the top...
- Wed Sep 10, 2003 1:06 pm
- Forum: General Discussion
- Topic: automatic transmission
- Replies: 10
- Views: 5169
automatic transmission
i'm trying to design an automatic shifter for a manual transmission car, using pneumatics and based off of rpm and speed readings. i can do the pneumatics. that's just simple valve controls, and i can program pretty well, but i'm not to experienced in electronics. i'm looking at using the atmel atme...