 | | I need a Propeller
|
| Hi, for a MindStorms project I need a (working) propeller. I plan to drive it with two of the old-style 9V motors. It should move as much air as possible. I estimate that the diameter should be somewhere between three and four inches. I wonder what (...) (25 years ago, 23-Nov-99, to lugnet.robotics)
| | | | | Re: I need a Propeller
|
| =>From: "Stefan Elsner" <spamtrap02@lowpoly.com> =>.... =>for a MindStorms project I need a (working) propeller. I plan to drive it =>with two of the old-style 9V motors. It should move as much air as possible. =>I estimate that the diameter should (...) (25 years ago, 23-Nov-99, to lugnet.robotics)
| | | | | Re: I need a Propeller
|
| Well, if model airplane props were for moving air, then every house fan would have one. Prop design is based on efficiency, not quantity of air moved. And the RPM environment, power available, fluid type, etc... None of the LEGO props are very good (...) (25 years ago, 23-Nov-99, to lugnet.robotics)
| | | | | Re: I need a Propeller
|
| Hi Dave, I'll take a non Lego part only as a last resort, especially with this project. I think I'll get the Mini-Heli and do some tests. Looks very much like the propellers I got with my Cox engines some time ago. Gearing two old-style technic (...) (25 years ago, 23-Nov-99, to lugnet.robotics)
| | | | | Re: I need a Propeller
|
| There is a 3 inch prop in Set #8412, but it does not move a lot of air. I was going to send a picture to you, but I could not get through your "spamtrap". -- Bob Fay rfay@we.mediaone.net The Shop (URL) Elsner" <spamtrap02@lowpoly.com> wrote in (...) (25 years ago, 23-Nov-99, to lugnet.robotics)
| | | | | Re: I need a Propeller
|
| Hi Bob, << There is a 3 inch prop in Set #8412, but it does not move a lot of air>> Do you think it's the same as in #8215? <<I was going to send a picture to you, but I could not get through your "spamtrap".>> Sorry. Actually, it's a valid e-mail (...) (25 years ago, 23-Nov-99, to lugnet.robotics)
| |
