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Old Feb 19, 2012, 10:02 PM
Registered User
Tokyo
Joined Jan 2010
700 Posts
Discussion
Favorite Mods for Genius & Mini CP

I am currently flying my genius and mini cp exclusively now. My other (fp) helis are just plain boring compared to these little cp guys. A little background on my skill level and flying style. I like to practice 3d in my living room and I crash a LOT! I enjoy being reckless and taking unnecessary risks

The following two mods are my absolute favorite mods for the genius and mini cp.


Benmlee's Servo Saver w/ O-ring for Added Tension
Benmlee's servo saver web page: http://benmlee.com/Genius_Servo_Saver.htm
My post for adding the o-ring: http://www.rcgroups.com/forums/showp...postcount=2066

Benmlee came up with a sweet idea to allow the servo arm to slip in a crash, thus saving the servo gears. I tried this mod, but no matter what I did the arms would slip during flight as they were too loose. By fixing a stock genius o-ring over the arm you can really tighten up the servo saver, but still allow enough give for the arm to slip during a crash. I have been flying with this mod over 200 flights now and it never slips during flight, but always slips in a crash.

Below are the ideas we have so far for adding tension to a servo saver:

- Genius/mini cp O-rings
- 1.5mm inside diameter fuel tube
- Dental floss or dental floss and ca
- 2mm heat shrink

Please post if you have other ideas. We have to improve this mod and stick it to Walkera (i.e. never give them another penny for servos OR servo gears...which are no longer available at the time of this writing).


Pmerritt's O-ring & Shim Mod
Pmerritt's post: http://www.rcgroups.com/forums/showp...postcount=1830
More photos in my post here; http://www.rcgroups.com/forums/showp...&postcount=688

Pmerritt discovered a way to eliminate slop in the head. This is an easy awesome mod. I have loads of flights on the buna o-rings and they still look brand new, checked them last night when I had to replace a bent feathering shaft. Others have also been able to get a snug fit by filing down the feathering shaft slightly. I prefer the shims as they are perfect every time and easy to replicate.


Best Batteries
Number 1 Choice: I like this 350mah battery suggested by Kopteri2010
http://www.rcgroups.com/forums/showp...&postcount=773

Number 2 Choice: Stock Walkera 240mah lipo. Can't believe how good this battery is for a stock Walkera lipo. Such a contrast to the crap lipos they gave us with the genius. As much or more power than hyp 240's.

Number 3 Choice: Hyp 240's. These are the oldy but goodies that are very popular. However, with other choices available I suspect sales on these will be waning.
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Last edited by bytemuncher; Mar 06, 2012 at 08:05 PM.
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Old Feb 21, 2012, 03:29 AM
Registered User
Tokyo
Joined Jan 2010
700 Posts
Update 1: Gear Audit @ 100 flights (21/Feb, 2012)
I did a gear audit to check to see how the gears were holding up with the extra tension of the o-rings. Everything looked great! I will definitely continue using the servo saver + o-ring. HIGHLY RECOMMENDED!

Update 2: Gear Audit @ 250+ flights and ~300 crashes (1/March, 2012)
Did another gear audit and gears are still pristine. Love this mod, but I love sticking it to Walkera by NOT BUYING THEIR SERVOS!!
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Last edited by bytemuncher; Mar 01, 2012 at 09:54 PM.
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