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Rockfrog · 08-18-2009, 10:58 AM

OK, so I'm putting together a Venom Creeper. It's just for fartin' around, no comps - don't think there's anything up here anyway.
I have an old 27T Trinity Monster Horsepower Stock motor I've pulled out of my aged Marui Ninja (yes, my stuff is old). Back in '98 I fried the ESC turning it with a 7 cell pack (Futaba MC210CB) ... so ... I want to see if the motor is still working, I tried just direct connecting a 9V battery to it (but I'm guessing there's not enough grunt) I got the motor to twitch ... that's about it. I can spim the shaft by hand and it seems fine there so not seized. I'm guessing I need to hook it up to an ESC to provide enough juice to spin it? I don't want to risk smoking my only ESC (cheap DTX intellispeed, rooster crawler on the way though).

short version - can a 27T be spin tested just hooking it up to a 9v battery?

why? because it's the only motor I have (beside a couple old mabuchi/johnson drill motors)

thanks for any help.
Dave

grimgard · 08-18-2009, 11:06 AM

TRy a 1.2V AA battery it should work for testing.

Rockfrog · 08-18-2009, 02:36 PM

No go, but ... Ryobi to the rescue ... used an 18V drill battery (just touched it) and the motor spun up perfectly. Crisis averted ... now I just have to bring my old 2/3A 6cell packs back to life ... hopefully it's just the result of my crappy soldering skills 4yrs ago (this'll teach me for just boxing everything up and stuffing it in a closet for 4yrs).

08-18-2009, 10:58 AM	#1
Rockfrog Rock Crawler Join Date: Sep 2005 Location: Duncan, BC, Canada Posts: 750	Call me supernOob - motor testing question OK, so I'm putting together a Venom Creeper. It's just for fartin' around, no comps - don't think there's anything up here anyway. I have an old 27T Trinity Monster Horsepower Stock motor I've pulled out of my aged Marui Ninja (yes, my stuff is old). Back in '98 I fried the ESC turning it with a 7 cell pack (Futaba MC210CB) ... so ... I want to see if the motor is still working, I tried just direct connecting a 9V battery to it (but I'm guessing there's not enough grunt) I got the motor to twitch ... that's about it. I can spim the shaft by hand and it seems fine there so not seized. I'm guessing I need to hook it up to an ESC to provide enough juice to spin it? I don't want to risk smoking my only ESC (cheap DTX intellispeed, rooster crawler on the way though). short version - can a 27T be spin tested just hooking it up to a 9v battery? why? because it's the only motor I have (beside a couple old mabuchi/johnson drill motors) thanks for any help. Dave

08-18-2009, 11:06 AM	#2
grimgard I joined the Band! Join Date: Oct 2008 Location: Bay Area Posts: 1,024	TRy a 1.2V AA battery it should work for testing.

08-18-2009, 02:36 PM	#3
Rockfrog Rock Crawler Join Date: Sep 2005 Location: Duncan, BC, Canada Posts: 750	No go, but ... Ryobi to the rescue ... used an 18V drill battery (just touched it) and the motor spun up perfectly. Crisis averted ... now I just have to bring my old 2/3A 6cell packs back to life ... hopefully it's just the result of my crappy soldering skills 4yrs ago (this'll teach me for just boxing everything up and stuffing it in a closet for 4yrs).

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