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HomeAircraftHelicopterMain Discussion › Rave 90 ENV flybarless
06-26-2018 07:23 PM  19 days agoPost 1
helichopter

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springville, utah US

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i am almost done building my new rave 90 env flybarless, awesome quality, smooth and precise engineering so far can anyone tell me a good source for parts please also I'm planning on using vbar unit and running that as receiver at high voltage output to JR servos has anyone run one of these with vbar.. also any advantages or disadvantages to setting up 120 or 140 ccpm please.

No team theyre all gone

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06-27-2018 03:57 AM  19 days agoPost 2
JLF92677

rrApprentice

Southern California

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For Rave 90 ENV parts go to https://www.droneshelis.com/ for good service and fast shipping / delivery to USA. Free shipping for $150 and over orders. It flys like it is on rails, you will love it.

Sorry, can’t help you with vbar, I fly CGY750 and 120 ccpm.

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06-27-2018 06:23 PM  18 days agoPost 3
fueline

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ocala,fl

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Congratulations, I have several ENV's. You will love it. A+ service from dronesheli.

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06-27-2018 06:42 PM  18 days agoPost 4
helichopter

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springville, utah US

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does anyone have useful information relating to the ccpm set up I have it at 140 ccpm but if I'm understanding correctly from research where people have used vbar they used shorter balls.. some came in the kit for the 120 ccpm set up if that's the case for the vbar I'll change them over any input please will be much useful
:-)

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06-28-2018 12:48 AM  18 days agoPost 5
ErichF

rrElite Veteran

Sutton, NH

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I have the Vbar Neo with PRO firmware and it doesn't support 140° eCCPM. 140 is geometrically superior, I know, but VBAR doesn't seem to think so, and completely left that swash type out. I guess for smack 3D it doesn't matter if there are interactions in the system, and if there are, the VBAR will cancel them out anyways.

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06-28-2018 03:13 AM  18 days agoPost 6
Dr.Ben

rrMaster

Richmond, VA, USA

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At least with 5.xx firmware, Nick Maxwell manually set numbers to support 135/140 geometry.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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06-28-2018 04:10 AM  18 days agoPost 7
helichopter

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springville, utah US

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so with the standard vbar before the neo it's possible, or what about if I mechanically switch to 120 ccpm I mean if 140 is better why isn't there software to support it, I also have the option of installing a new total g in the machine just not sure which way to go, my flybarless fury extreme with the vbar had a very dialed in realistic agility to scale feel... you knew it was a bigger machine and you could feel it with the vbar I loved how precise it was, I'm trying to achieve that with this machine too

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06-28-2018 04:25 PM  18 days agoPost 8
pctomlin

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Texas

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The TotalG was a very good FBL back in the day, what I started with. Still a good FBL, but way behind the times now as far as features/governor. My FBL of choice now is the MSH Brain. Have two Rave Ballistics that I fly, love them. Have a Ballistic canopy signed by Curtis, he use to frequent funflies in Texas quite a bit.

If you do decide to go with the TG, I have the latest firmware, fc11_3c7, and the setup program I can send you. May have to clean out some cobwebs, but could help you out with setting it up also. It would work well with an ESC governor as a stand alone FBL. Only issue might be if it is not set up for DSMX if you fly Spektrum.

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06-28-2018 05:08 PM  18 days agoPost 9
helichopter

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springville, utah US

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I'm flying spectrum and machine is nitro so.. I also tune my motors very well and set up all my throttle curves so I do not need a governor.. thank you all for your much appreciated input

No team theyre all gone

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06-29-2018 12:51 AM  17 days agoPost 10
ErichF

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Sutton, NH

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Honestly, with the integrators built into these new FBL units, there is little need for perfect mechanical geometry anymore. Mechanical setups can be quite sloppy and these things will overcome without you even knowing. Any errors detected in the airframe that it doesn't see commanded from the sticks is nulled out instantly. Same thing happened when heading hold gyros first came out. As long as your pitch range settings are proper and the servo angles are squared at zero pitch, the FBL controller will do the rest.
helichopter
so with the standard vbar before the neo it's possible, or what about if I mechanically switch to 120 ccpm I mean if 140 is better why isn't there software to support it

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06-29-2018 12:53 PM  17 days agoPost 11
raholek

rrVeteran

Zachary, Louisiana

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Used the numbers from Nick Maxwell for the 140 setup. Flew great with a Vbar. Use the governor, it works great.

One of the best helis of all time. Flies great and a joy to do maintenance.
A damn shame that CYE closed.

www.redstickrc.net ama#: 968515

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06-29-2018 03:51 PM  17 days agoPost 12
helichopter

rrNovice

springville, utah US

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would you be kind enough to send me the numbers and how to's for Nik Maxwell's set up with the vbar please I think I'm gonna try it, thank you very much

No team theyre all gone

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06-29-2018 10:50 PM  16 days agoPost 13
raholek

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Zachary, Louisiana

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Actually got them off a thread on one of the forums. Will try to dig them up.

www.redstickrc.net ama#: 968515

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06-29-2018 10:57 PM  16 days agoPost 14
raholek

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Zachary, Louisiana

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From another source(ahem)
Default Re: VBAR SWASH SETTING (140)
Ok here goes.

From Nick.

The top numbers are angles: that's pretty unarguable since its a 135degree ccpm and 135 degree system. The back is 270 essentially they did the calculation based around the elevator axis, so 90 degrees out of phase vs front->back. 270-135= 135 for the front left, front right is 45 because 360-270=90 and that angle is half that distance so = 45 degrees

As for the bottom numbers those are distances relative to the ball position away from the main shaft. I forget the real numbers but if you measure the front two (those are the constants) and set those equal to 100, measure the back distance and cross multiply and divide based off the front numbers set to 100% and you get the distance percentage of the back point relative to the front point. So given you want the front servos to move the furthest, set those to 100, and the back post is shorter (by 28%) so you want it to move only 72% of the travel of the front servos to deflect the back of the swashplate the same amount as the front two. So the numbers should be 72/100/100.

The angles and distances will not cause the elevator bracket to break. The pivot of the elevator control link is fixed... It cannot see and side load even if you turned the phasing 45-90 degrees. The load on the servo is purely torsional load based around the servo spline point. Being a fixed pull pull length it's not even possible to get any side load on the servo spline. As when one rod gets longer the other will get shorter the same amount.

Now, if his swash ring number is too high, yes of course this could break the mount. In VBar they are setup for direct link helis where there is much more mechanical loss as the servo/linkage is deflected. So if he is setting his swash ring number based off high and low pitch not neutral pitch, yes, it'll bind really bad at neutral. As tgey cut the top and bottom swash travel a lot to precebt binding in direct link helis. That has nothing to do with distances or measure points though as those only calculate the pivot accuracy around the center of the swash plate and the interaction of the three servos to create pure input, not for high and low pitch. It's purely a linear calculation. The swash ring changes the linearity from mechanical loss of leverage/deflection as you move the swash up and down. All the servos move equally for that, so no compensation needed.

For awhile Nick was on team with Curtis. This was his post about the 140 option.

www.redstickrc.net ama#: 968515

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