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HomeAircraftHelicopterRobbe Cuatro - Millennium - Nova - Dyna-X › WANTED clutch assembly for Robbe Futura Gold
04-01-2018 06:09 PM  3 months agoPost 1
Blazer7671

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Pueblo west

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Hello...I'm after a clutch assembly for the Futura Gold edition. The whole thing as it goes on top of the engine.

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04-01-2018 08:10 PM  3 months agoPost 2
Yeager

rrApprentice

Lisbon, Portugal

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Blazer7671
clutch assembly for the Futura Gold edition
Any part numbers?

Robbe Nova Cuatro Gas/Nitro, Futura Nova Nitro, Futura SS Nitro, Vario Scale S300C/1002/21 Gas.

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04-02-2018 03:42 AM  3 months agoPost 3
Blazer7671

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Pueblo west

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4105, 4123, 4122, 4120, 4125, 0245, 4153. Those are the parts according to the plans. I have 4172. Basically, I need the pulley. I'm going to make my Futura Royal electric

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04-02-2018 07:23 PM  3 months agoPost 4
dela

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Stillwater Oklahoma

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I might have one, but it is likely that you will want a different size pulley, depending on the KV of the motor you choose and the number of cells in the battery.

Have you done the motor calculations to know how many teeth you want on the pulley?

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04-02-2018 08:12 PM  3 months agoPost 5
Blazer7671

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Pueblo west

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dela
Have you done the motor calculations to know how many teeth you want on the pulley?
I have a 42 and 48 tooth main pulley and 500kv Kontronik 700 motor. 375 belt and planning to run 8 or 10s. I got in touch with a guy that makes pulleys for motors. I wasn't aware there were different ratios for the pulleys until last night. I basicly want this to fly like a sport machine...not a 3D monster.

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04-03-2018 11:20 AM  3 months agoPost 6
Sparkhead

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Melbourne Australia

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Any reason you want the clutch? I’ve converted a few of my Robbes to electric and have done direct drive. You can buy belts at pulleys pretty easily to suit.


Mick.

Robbe & Futaba.

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04-03-2018 06:24 PM  3 months agoPost 7
Blazer7671

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Pueblo west

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Sparkhead
Any reason you want the clutch? I’ve converted a few of my Robbes to electric and have done direct drive. You can buy belts at pulleys pretty easily to suit.
I kinda want it after seeing a guys scale copter. The spool up is sooooo sweet! I thought it'd be nice in the Royal fuse. I can't seem to find belts anywhere....were should I look?

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04-03-2018 07:37 PM  3 months agoPost 8
Pistol Pete

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Seffner, FL

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Try your luck here
https://www.mcmaster.com/#timing-belts/=1a3wsog

~~Enjoying the hobby one flight at a time~~

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04-04-2018 08:26 AM  3 months agoPost 9
Sparkhead

rrKey Veteran

Melbourne Australia

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I have bought both pulleys and belts from here-

https://piesau.com.au


Mick.

Robbe & Futaba.

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04-05-2018 12:58 AM  3 months agoPost 10
Blazer7671

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Pueblo west

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My helicopter knowledge starts at the Raptor 30 V1. I know the Futura has the 45 deg offset phasing...that's easy enough to understand as I have a couple multi blade copters. The ins and outs of the Futura are still new to me.

the belts are AT5 and the length is in mm, right? I found this place....http://www.designatronics.com/. I think I can find what I need there. Now all I need to do is learn what I need.

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04-05-2018 07:38 AM  3 months agoPost 11
R.J.

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SF bay area, CA USA

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I converted a Futura SE to electric by machining a motor shaft-clutch adapter that drove an old clutch via the setscrew. Machined a clutch bell and attached a pulley that ran on ball bearings on the clutch adapter shaft. Made a motor mount plate to fit in sideframes.

http://www.scalerchelis.com/phpBB2/...php?f=42&t=8519

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04-05-2018 02:45 PM  3 months agoPost 12
Blazer7671

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Pueblo west

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sounds interesting, but can't see anything of the thread unless I join the site.

still looking for a clutch assembly.

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04-05-2018 03:36 PM  3 months agoPost 13
Craig G.

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Central NC

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Blazer, I'm converting a Nova mechanic to electric to install in my Futura Royal. I'm using a clutch as well for the same reason you mentioned plus I can't stand fighting against the motor when rotating the head ccw (minor issue for most I know). I'm going with a Scorpion 450kv motor using a 22 tooth clutch bell and 48 tooth pulley. Overall 10:6 ratio on 12 cells should give it about 1700 RPM headspeed. I'm using an extended 8mm shaft on the motor which will allow a second support bearing above the clutch assy. Using the same part number bearing holder used on the mainshaft with a 8mm ID bearing. Should work as well on the Gold version as it does on the Nova. Strongly recommend this to relieve stress on the motor bearing.

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04-06-2018 12:35 AM  3 months agoPost 14
R.J.

rrVeteran

SF bay area, CA USA

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Blazer7671
sounds interesting, but can't see anything of the thread unless I join the site.
Sorry, I guess the Futura Gold is different than the SE, but here's some of the photos to possibly give you some ideas:

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04-08-2018 06:37 PM  3 months agoPost 15
Blazer7671

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Pueblo west

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pretty cool. So as I really don't know the Futura all to well, I've found I have the wrong head (long story) and that the shaft is 10mm. I have a bunch of Raptor 30/50 parts and plan to use from the swash up for the Futura. Unless I can find a Futura head. I DO have a swash....so that's a start, right?

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04-08-2018 07:45 PM  3 months agoPost 16
Craig G.

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Central NC

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Blazer7671
I DO have a swash....so that's a start, right?
No... because of the 45 degree phasing youll find that Robbe specific parts are needed.

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04-09-2018 02:51 PM  3 months agoPost 17
Blazer7671

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Pueblo west

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Craig G.
No... because of the 45 degree phasing youll find that Robbe specific parts are needed.
I was thinking I could use the mixed in the radio...just like phasing a multi head.

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04-10-2018 03:32 AM  3 months agoPost 18
Sparkhead

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Melbourne Australia

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Yes this is no problem. I have used the RJX head on one and and Align head on another this way. Just put your phasing out by 45 degrees.


Mick.

Robbe & Futaba.

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04-12-2018 02:26 AM  3 months agoPost 19
Blazer7671

rrNovice

Pueblo west

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Sparkhead
I have used the RJX head...
thank you for that! I was wondering how to make this work with a 10mm shaft.

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04-12-2018 05:46 AM  3 months agoPost 20
Sparkhead

rrKey Veteran

Melbourne Australia

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If you want to use a different head you can also sleeve a 12mm head. I did this with the Align head on my Royal. In the middle of the anti-rotation assembly there’s a sleeve that’s ID 10mm and OD 12mm. Just had to turn down the raised section in the middle.


Mick.

Robbe & Futaba.

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HomeAircraftHelicopterRobbe Cuatro - Millennium - Nova - Dyna-X › WANTED clutch assembly for Robbe Futura Gold
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