Previous in Forum: Dispersion Motor PWM Operation   Next in Forum: Material Trolley Without Cable Drum
Close
Close
Close
2 comments
Rate Comments: Nested
Anonymous Poster #1

Project

05/29/2012 9:10 AM

can anybody tell me how to make a propeller clock...because i want to make a project in that??

Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#1

Re: project

05/29/2012 9:13 AM

Isn't the whole idea of the project to develop a new design, i.e. one that has not been plagiarised from another's design work?

__________________
"Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Reply
Guru

Join Date: Jul 2007
Posts: 4448
Good Answers: 143
#2

Re: Project

05/29/2012 4:53 PM

Sure. Just take about a 2 foot propellar and mount it on a small motor - you could use a steam engine if you can get one to go fast enough. Mount a small air-driven generator in the hub with the vane cups out on the tips. Then put a distributed matrix of LEDs on the prop blades such that they blink the correct time, but depend on the prop rotating at speed so that retinal persistence puts the blinking LEDs together into digital numbers.

Sounds like fun.

__________________
"Well, I've wrestled with reality for 35 years, Doctor, and I'm happy to state I finally won out over it." Elwood P. Dowd
Reply
Reply to Forum Thread 2 comments

Previous in Forum: Dispersion Motor PWM Operation   Next in Forum: Material Trolley Without Cable Drum

Advertisement