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Old 12-28-2009, 03:27 PM
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Default servo motor???

i want to make a crawler and i read around a bit and was wondering what was the general census of an HS-55 servo and if its a good one do i need the micro?
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Old 12-28-2009, 05:10 PM
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by census you mean...? If your asking for info on it i will say it is a good place to start if your converting to a servo motor, plenty reliable but the gears aren't metal. For about $14 you cant go wrong unless you wire it wrong. Here are the specs on the servo if you wanted it.

Speed: 0.17 sec at 60°
Output Torque: 15.27 oz-in (1.1 kg-cm)
Weight: 0.27oz (7.8g)
Length: 0.89" (22.8mm)
Width: 0.45" (11.6mm)
Height: 0.94" (24mm)

most "stock" 130 motors usually do 1-2oz-in max torque at 6v or 36-56g-cm
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Old 12-28-2009, 05:57 PM
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Quote:
Originally Posted by dreamingISdrifting View Post
by census you mean...? If your asking for info on it i will say it is a good place to start if your converting to a servo motor, plenty reliable but the gears aren't metal. For about $14 you cant go wrong unless you wire it wrong. Here are the specs on the servo if you wanted it.

Speed: 0.17 sec at 60°
Output Torque: 15.27 oz-in (1.1 kg-cm)
Weight: 0.27oz (7.8g)
Length: 0.89" (22.8mm)
Width: 0.45" (11.6mm)
Height: 0.94" (24mm)

most "stock" 130 motors usually do 1-2oz-in max torque at 6v or 36-56g-cm
by cencus i mean what all of you think about it, and are those specs for the micro hs?
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Old 12-28-2009, 06:00 PM
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i have read a few bad reviews mostly motor faliures
but iv been running one for about a year with no probs , a nice upgrade is the 65 same size but with metal gears
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Old 12-28-2009, 06:53 PM
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Quote:
Originally Posted by reaper View Post
i have read a few bad reviews mostly motor faliures
To elaborate on that, I feel most of these failures have been due to the higher voltages we use to power our Xmods. The HiTec HS55/HS65/HS81 are rated for only 4.8V (6.0V max) and in many cases we're powering our Xmods with 2S LiPo rated at 7.2V. At 4.8V, which I am assuming is what Reaper is running his at to have such a long life, you're putting much less strain on the motor and should theoretically see a longer life due to this.

However, at $10 a pop, it's not that bad if they last a few months then die. Only takes about a half hour to mod a new one to a three-sixty rotational and go out crawling again!

Cheers,
Kyle.
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  #6  
Old 12-28-2009, 06:58 PM
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+1 /\

i would say that is a very good point , i am in-fact running the stock 4 cells
and to be honest i think for a crawler it is far superior liths are pointless , they are to powerful and the extra weight of the AAA's help traction
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Old 12-28-2009, 07:21 PM
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Quote:
Originally Posted by bnR34 View Post
by cencus i mean what all of you think about it, and are those specs for the micro hs?
yes they are the specs for the hs-55, if you want a micro servo with metal gears, get this it's way better than the hs65 and at a much lower price.
http://www.hobbypartz.com/9gexidimeges.html Very good price, +its digital, i am running 2 of these on my blade cx2 heli for atleast 3 years now and everything is still working properly and smoothly.

But about the motor failures i am not too sure about that, i run 8+volts (lipo) on my heli and they are working fine, but maybe thats cuz 80% of the power goes to the motor anyways.
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Old 12-28-2009, 07:31 PM
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yes but your heli has BEC so reduces the power to less than 6v

what we do with servo's is mod the to 360* rotation and use as drive motors
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