01-18-2004, 02:02 AM
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TinyRC Newbie
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Join Date: Dec 2002
Posts: 14
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Max power...
I was wondering if anyone knew how much voltage and current the servo board can handle... I have an HPI MMM that I was hoping I could use. I know I won't be able to feed the power the motor requires through the "ESC", but if I knew it's limitations, I can plan around it.
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01-18-2004, 02:03 PM
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Registered User
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Join Date: Dec 2002
Posts: 14
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Has anyone over come the problem of limited throttle range?
I mean, it only takes until about 1/4 stick to reach full throttle, makes trucks very jerky to drive. I'd like to be able to reach full throttle at around 3/4 stick. Other than using a TX with EPA (sorry but my good TX stays with my heli and possibly other aircraft), any ideas?
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01-18-2004, 02:41 PM
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Registered User
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Join Date: Jan 2003
Location: Germany
Posts: 103
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Hi,
thats the reason for a good speedcontroler instead of a servocontroler;-)
In a servo you must have a short time of reaction. I think you dont want to wait some seconds until the servo reaches his position.
To do this, the servo controler have a small 0-point and fullspeed at 1/4 stick.
I dont know a solution to modifie the servocontroler.
But I have a little circuit on my website ( www.mikromodell.de) . This is a cheap speedcontroler with "normal" ranges.
best regards
Thorsten
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01-23-2004, 05:10 PM
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TinyRC Pro
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Join Date: Jan 2004
Location: The land of all things faster than they need to be.
Posts: 63
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the ICS-50 should work if you use enough cells. The voltage cutoff is an annoyance, though.
The Pixie 7p is a better option, with a max. 7 amp draw and all the goodies, including adjustable cutoff. It should work nicely.
I personally think the ICS is a good idea, as with a cheap Li-Ion pack your TTTT will go for a looooooooooooong time
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05-26-2004, 12:59 AM
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Registered User
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Join Date: May 2004
Posts: 15
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So am I to understand that I could use a servo with a larger motor in place as a speed control? I am also building a 1/24 Monster Truck/Rock Crawler, and this would be a very economical and lightweight answer!
I would be running a Speed 300, is that going to kill my servo "speed controller"? I imagine in a rock crawling situation, running 6 volts and a Speed 300, the amps might be a bit much for a servo to handle, or is that guess an incorrect one?
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05-26-2004, 01:21 AM
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Overworked
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Join Date: Dec 2002
Location: Vacaville, CA
Posts: 212
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Yes a 300 sise motor will fry most servo board ESCs. You could try a large 1/4 scale servo but at that cost you might as well buy a standard micro ESC. There are many 1/24th and 1/18th RC models out there these days. Micro ESCs are easy to come by at that size.
IMO, a 300 motor is way too much for a 1/24 rock crawler anyway.
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