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Post by killbucket on Apr 5, 2007 23:19:52 GMT -5
If this is assembled already, I want to see pics. When you have a truly good idea, you are not alone with it...
Materials List:
1/4-scale servo, 2 each. Mod the motor inputs as for a magwinder mod.
Tripod, weighted or anchored.
Transit and elevation mount/pintle to fit:
Your favorite AEG. (Hmmm, what will I pick?)
Wireless security camera.
nice long control cable.
small electric solenoid
two center off SPDT toggle switches momentary type.
One momentary switch
Big batteries to overcome the long cable run.
Laptop or TV set.
Audio/P.A. gear optional.
Sit on the couch, or at your desk at work, or around the corner...
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biged
Master sergeant 
Posts: 468
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Post by biged on Apr 6, 2007 4:12:56 GMT -5
Already been made. Two guys in college made a remote tracking P90 a couple years ago... A laptop computer controlled it like a sentry gun. They wrote a whole article on it. This is'nt the link but you can google more about it. www.technovelgy.com/ct/Science-Fiction-News.asp?NewsNum=502Another remote controlled gun was made by Lester in Ct. He owns RC car store. Had way too much time on his hands. His conclusion was, once the remote gun is spotted, people go around it. It became a bunker brick. If you look around the remote controlled Airsoft tanks can be found. They can upgraded but is difficult to get one to shoot above 300 fps. I have seen the $99 baby monitors already used in the field. Battery operated camera and monitor. The camera is about the size of a mouse, and the monitor is the size of a TV remote. Transmission range 200 feet. You can buy them at home depot. A DC car wind-shield wiper motor is much better suited for traversing, more torque. ///ed/// |
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Post by killbucket on Apr 8, 2007 4:36:24 GMT -5
Yes, I'd seen the Computer comntrolled LPEG.
Skip the computer. I just want to play from my Lay-Z-Boy.
I've already got one wiper motor from HSC, but was going to use it to drive a large Airsoft gun. Imagine the spring it could compress. Just overfeed it voltage to get the ROF up.
Yes, too powerful for skirmishing. Great for Squirrel Hunting.
Before anybody shrieks, I wouldn't shoot a squirrel REALLY.
Setting cats on fire is funny, as long as you don't actually DO it.
Great idea on using the motors for t & e.
An alternate use would be for later when I get the M2 up and into production, a chair mount (turret) with two guns on each side and a trick black box fire control.
The sentry gun is a separate idea, I agree they are of limited use (Metal Gear Solid players know this well!). But a gun that can be placed around the corner on a moments notice, with remote view, would be slick.
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biged
Master sergeant
Posts: 468
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Post by biged on Apr 9, 2007 5:24:36 GMT -5
Increasing voltage to speed up performance works but has limitations max input for any 12vdc motor is 14volts. Using the servos to traverse and elevate will have a finite lifespan. Balancing the gun would be key to increasing their use. Especially the elevation. The servo would work elevating the gun barrel but then fall back down each time the elevation was used. A high-torque motor coupled with a rheostat to adjust traverse speed would avoid overadjusting & bouncing. My best success at shooting around corners and up stairwells has been 90 degree bend .75 inch diameter electrical conduit with an old camo mirror attatched with a hose clamp. I slip it over the end of the barrel and shoot... Works really great!  ///ed/// |
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Post by killbucket on Apr 9, 2007 23:43:54 GMT -5
Like the old curved barrel guns tank crews had. Slick!
How about we switch the gun to a glock18, put it in a suitcase such that it opens like a big pop-up book? Spring-loaded, with a remote release?
Airsoft Tanks. Why aren't these more popular? Telepresence- cameras on board, scale battleground, hit sensors on the tank bodies, etc. Again, Squirrel patrol would be interesting playback.
Very intuitive on the balance issue. Pivot points are seldom arbitrary. You can balance an item on your fingertip, and its motion is easy to adjust. Suprising how many engineers don't get that.
On heavy transit assemblies, I've seen ice cream maker gearboxes put to use. Burly gears for stiff ice cream churning (the only time that sentence appears on this forum).
Also true on the voltage limitation except:
DC motors make unlimted horsepower (at 0 RPM), given unlimited power. Trick is keeping them cool. And keeping duty cycle in mind. (Somebody tell LPEG buyers this, already).
Old car heater motors were once converted to trolling motors, voltage upped like crazy. They ran fine,and were susceptble to rust unless treated well. They were cheaper to replace.
There's a can around the wiper motor, I haven't cracked it yet. Considering as long as wiper motors must run at times, I surmise there is coolant inside. If not, the can should make some sort of cooling possible.
Stock speed is ~80RPM...Too slow... Need >400RPM
I used to use freeze-zone to chill my RC boat motors that didn't have cooling lines on the motors. I had the cans wrapped with thin lead solder to increase the mass. A long shot of freeze, and stay on the throttle hard for a good FOUR (not three) minutes before the windings flew apart.
Ah, the good old days.
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biged
Master sergeant
Posts: 468
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Post by biged on Apr 11, 2007 4:51:50 GMT -5
The tank was just a RC tank with a 30 rd(?) mag. The range was at best that of a crappy springer pistol.
(Like half the normal range of a spring pistol..)
They were $100-$200+.
Have'nt seen a remote airsoft tank being used since 2003.
///ed///
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Post by killbucket on Apr 11, 2007 10:42:37 GMT -5
I had one of the Doyusha RC tanks a while back.
A good example of a toy that is more fun to daydream about, than to actually put to use.
An airsoft gun on a RC truck would make more sense. You could gun and run with it. The tank was a slow pig, and for some reason, it just didn't translate to adult use, the ways cars and trucks do. I was embarassed to take it out in public.
A coworker bought the thing from me. He sold it two weeks later to some other starry-eyed enthusiast.
Hey, put a fake bush over the tank, and add cameras for stealthy recon work!
I know, we're in 1942 here, rc didn't exist....
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