Slowing lasers?
6 posts • Page 1 of 1
Slowing lasers?
I am making an electronic electric motor (like a brushless RC motor). But the problem is I can't figure out how to have throttle control. Currently I have 4 lasers triggering themselves, and 4 magnets being triggered from those lasers, so its going a bit too fast for the motor to run. So back to the original question, How can I slow the lasers or create a throttle control so it will run slower when I need it to?
PS If I make the hinge a motor to help it get to speed around 100 rad/s and turn off the hinge motor it runs fine.
PS If I make the hinge a motor to help it get to speed around 100 rad/s and turn off the hinge motor it runs fine.
- Ratboy14
- Posts: 3
- Joined: Thu Apr 12, 2012 7:06 pm
Re: Slowing lasers?
Its all to do with the timing of the magnets "firing", I expect you know that a brushless speed controller slows the timing down when the motor is just starting, to get it going. You need to figure out a way to link the lasers and the rpm, so more rpm then faster timing, this is usually done by blocking the lasers with objects that rotate with the stator or bell, so when the object gets out of the way, the laser fires. So a slow speed means the lasers fire at a lower frequency. Most throttles, in algodoo and in real brushless motors are done by either, by turning the magnets on for a shorter time (Low throttle) or having the magnets activated for as long as possible without beginning to slow the motor (High throttle).
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Nxdt - Posts: 1019
- Joined: Mon Aug 31, 2009 6:32 pm
- Location: Scotland!
Re: Slowing lasers?
Nxdt wrote:Its all to do with the timing of the magnets "firing", I expect you know that a brushless speed controller slows the timing down when the motor is just starting, to get it going. You need to figure out a way to link the lasers and the rpm, so more rpm then faster timing, this is usually done by blocking the lasers with objects that rotate with the stator or bell, so when the object gets out of the way, the laser fires. So a slow speed means the lasers fire at a lower frequency. Most throttles, in algodoo and in real brushless motors are done by either, by turning the magnets on for a shorter time (Low throttle) or having the magnets activated for as long as possible without beginning to slow the motor (High throttle).
Well what if I add a programmable delay in the lasers so I can make a slider or something that lessens the delay for more throttle. That part is what I was stuck on since I don't know how to make a delay of some sorts.
- Ratboy14
- Posts: 3
- Joined: Thu Apr 12, 2012 7:06 pm
Re: Slowing lasers?
Delays are usually done mechanicaly, you could spawn a ball, and the delay can be controlled by the height it falls until its hits an object (Call it the trigger) with code to start the laser. You can then control the delay by adjusting the position of the trigger block using a mechanical piston.
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Nxdt - Posts: 1019
- Joined: Mon Aug 31, 2009 6:32 pm
- Location: Scotland!
Re: Slowing lasers?
Nxdt wrote:Delays are usually done mechanicaly, you could spawn a ball, and the delay can be controlled by the height it falls until its hits an object (Call it the trigger) with code to start the laser. You can then control the delay by adjusting the position of the trigger block using a mechanical piston.
YES! That is perfect, as you can tell I am not that great at thinking of simple things as I tend to overthink them. Thanks for the help.
- Ratboy14
- Posts: 3
- Joined: Thu Apr 12, 2012 7:06 pm
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