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Mercuriell · 11-28-2008, 06:33 AM

Build videos on MA Furion can be found here - plan to use Scorpiom 2221-8 with a JAzz controller and Futaba 3156 on cyclic - not sure on gyro - may start off with 401 and 9257

Mercuriell · 12-26-2008, 11:30 PM

Figured out a fix to the problem of the servo arms on the Futaba servos - notably the 3156. Some have shied away from the Futaba servos and gone Hitec because of the flimsy cross arms needed to make the 11mm radius required - there seem to be NO 3rd part Futaba mini servo arms available.

Thought I'd make up some CF arms and came across a packet of Custom Heli Products CF arms for the TREX 600 - these are pre-drilled for 15mm but it's easy to bolt the three together and drill a hole at 11mm - then you can take the standard wheel which is a nice snug fit inside and use it to mount to the servo output shaft.

The beauty of these is that you can adjust to get zero-subtrim then tighten up the locating M2 bolts (even drill a 3rd if your like) - I can't imagine a lighter yet more rigid fix !! You can mount the balls under/over to best line up with the swash

PS - you do have to trim down the opposite CFarm to stop if fouling the canopy

xcraftllc · 03-01-2009, 10:33 AM

thanks for the vids. BTW, do JR servo arms fit on futabas? I know they have a 10 mm hole in one of there arms.

Laurens · 03-01-2009, 10:53 AM

The big ones don't fit, so I bet the small servo arms won't fit either.

razeyoshi · 05-30-2009, 03:15 AM

ready heli insane crash contest (DIXONS CRASH) (2 min 22 sec)

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ready heli insane crash contest (DIXONS CRASH) (2 min 22 sec)

" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="505"></embed></object>

how about a repair video...

hokie_steve · 06-06-2009, 07:00 AM

Why not just use the Futaba heavy duty arms for the 3156?
http://www3.towerhobbies.com/cgi-bin...?&I=LXWDH3&P=7

clever · 06-20-2009, 08:44 AM

My manual says 13mm for the servo radius. Should it be 11mm as stated above?

11-28-2008, 06:33 AM	#1 (permalink)
Mercuriell HF Support Join Date: Sep 2006	MA Furion - Build Videos Build videos on MA Furion can be found here - plan to use Scorpiom 2221-8 with a JAzz controller and Futaba 3156 on cyclic - not sure on gyro - may start off with 401 and 9257 __________________ John

12-26-2008, 11:30 PM	#2 (permalink)
Mercuriell HF Support Thread Starter Join Date: Sep 2006	Futaba arms Figured out a fix to the problem of the servo arms on the Futaba servos - notably the 3156. Some have shied away from the Futaba servos and gone Hitec because of the flimsy cross arms needed to make the 11mm radius required - there seem to be NO 3rd part Futaba mini servo arms available. Thought I'd make up some CF arms and came across a packet of Custom Heli Products CF arms for the TREX 600 - these are pre-drilled for 15mm but it's easy to bolt the three together and drill a hole at 11mm - then you can take the standard wheel which is a nice snug fit inside and use it to mount to the servo output shaft. The beauty of these is that you can adjust to get zero-subtrim then tighten up the locating M2 bolts (even drill a 3rd if your like) - I can't imagine a lighter yet more rigid fix !! You can mount the balls under/over to best line up with the swash PS - you do have to trim down the opposite CFarm to stop if fouling the canopy Attached Thumbnails __________________ John Last edited by Mercuriell; 03-01-2009 at 03:16 PM.. Reason: Add PS

03-01-2009, 10:53 AM	#4 (permalink)
Laurens Registered Users My HF Map location Join Date: Apr 2004	The big ones don't fit, so I bet the small servo arms won't fit either. __________________ Logo 800/Jeti DS16

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03-01-2009, 10:33 AM	#3 (permalink)
xcraftllc Registered Users Join Date: Mar 2008	thanks for the vids. BTW, do JR servo arms fit on futabas? I know they have a 10 mm hole in one of there arms.

06-06-2009, 07:00 AM	#6 (permalink)
hokie_steve Registered Users Join Date: Apr 2006	Why not just use the Futaba heavy duty arms for the 3156? http://www3.towerhobbies.com/cgi-bin...?&I=LXWDH3&P=7

06-20-2009, 08:44 AM	#7 (permalink)
clever Registered Users Join Date: Feb 2006	My manual says 13mm for the servo radius. Should it be 11mm as stated above?

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