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  #1  
Old 10-31-2007, 12:11 AM
Grant Tokumi Grant Tokumi is offline
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Servo Linear Actuators

This is some cool stuff IMO. Opens up many possibilities.

http://www.servocity.com/html/12v_linear_actuators.html
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Old 10-31-2007, 10:22 AM
viper7016 viper7016 is offline
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Yes, but I'm waiting to see how small their small version is. Maybe usable in RC.
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Old 10-31-2007, 10:35 AM
xfusion xfusion is offline
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0.50" per second is pretty slow, even the worst r/c servos can do that in 1/2 that time.
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Old 10-31-2007, 11:41 AM
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Now I can make that crane I always dreamed of.
-Eric
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Old 10-31-2007, 09:46 PM
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Quote:
Originally Posted by xfusion View Post
0.50" per second is pretty slow, even the worst r/c servos can do that in 1/2 that time.
Please post the link to any servo that moves 175 lbs vertical without burning out trying... or compare apples to apples and leave the oranges out.
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Old 11-01-2007, 01:04 AM
Grant Tokumi Grant Tokumi is offline
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Wow. Didn't expect this thread to turn into a pissing match.

The real beauty of these IMO is that it is the first linear actuator I've seen that has position control, like how servos work.

If it was used for steering a full size go cart or something large like that, when your transmitter steering channel is at neutral, having position control means the wheels are pointed straight ahead, just like what a servo does. That vs typical actuators out there where when your transmitter is at center, your wheels just stop moving and is pointing in whatever direction it was previously at.

Happy Halloween!
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Old 11-01-2007, 01:12 AM
Grant Tokumi Grant Tokumi is offline
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Hmmm. As I look again at the site, I might have linked to the wrong product. This is the one that seems for sure to have the position control

http://www.servocity.com/html/heavy_..._actuator.html



The giveaway is the servo plug coming out of the unit.
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Old 11-01-2007, 06:36 AM
xfusion xfusion is offline
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I think the only way that you're going to get an actuator in your system is if it's pneumatic, motor-gear ones are much too slow. The actuators with the servo plug only do 0.25" / second @ 50lbs which kinda sucks..
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Old 11-01-2007, 08:39 AM
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To respond to the asinine comments, what I was saying was these weren't in any way linked to servos. You took all your energy responding to something you couldn't see (the forest for all the trees). Eric was talking about using it to make a crane. I thought about a tow truck. I will be willing to bet that many other people that looked at the link thought of something else as well, but you in your narrow mindedness thought about replacing your steering servo. Who said anything about it being used for 1/10th scale or maybe 1/18th in your class of racing? I am thinking 1/4 scale and larger (those of us over 30 can actually afford more than zipzaps) and thought it was cool that someone took the time to post something interesting. You on the other hand wanted to discredit anyone posting anything that wasn't relevant to "your way" of using little plastic toys. Keep in mind, there are other people other than you pushing the earth to make it spin. Don't waste everyone else's time by responding; it will only show your ignorance and I don't really care to hear what you have to say if it is only negative.

BTW, your "*" key is stuck on your keyboard (probably from playing HarryPotter or Lord of the Rings too much).
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Old 11-01-2007, 08:42 AM
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xfusion, why were you comparing their 'oranges' our 'apples' in terms of speed?
They're products with two entirely different purposes. Apples turn small tires, oranges move heavy loads.
How fast would a linear actuator have to move on a scale r/c piece of construction equipment (bulldozer, crane, etc.)? If you get that crap moving too fast you'll just be throwing stuff around rather than actually lifting/moving it like you want to.
-Eric
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