flybarless noob tarot zyx

[giles]

i have recently converted my elyq vision 50 comp to flybarless. I have all servos arms set at 90, and level swash at mid stick. At full negative and full positive pitch the swash is not level. i used to use mixing when flybared to get a level swash at -+ pitch. To get the swash level on full neg and pos i would need quite alot of travel adjustment. Should i not worry about a level swash at -+ on a flybarless system.?

[giles]

ok. So i have discovered so far that it doesn't matter if the swash plate does stay level in max pos and negative collective, just to make sure swash is level at mid stick for getting equal pitch on both blades. So far its installled on my ELyq vision comp 50, just waiting for replacement bearings for the blade grips. Might as well change the bearings while im at it. also changed the bearing arrangement in the grips to bearing-thrustbearing-bearing (more support). Was originally bearing-bearing-thrust bearing. Will keep you posted on how it fly's. This is my first flybarless heli ( apart from 130x). So if it fly's better than the flybar then i will be happy with that.

[trillian]

I have only worked with a BeastX as yet but in general the idea is that the FBL controller is always going to be making corrections and you're always in a control loop. So it just needs to know things like the swash travel limits before binding, usually where a certain amount of cyclic pitch is (6 degrees in the case of the BeastX) etc.

I converted a Vision Ultimate to FBL and it worked very well.

[sp4rky-m4rky]

The swash should defiantly be level throughout. With the heli sat on the bench, motor unplugged, going full neg to full positive the swash should defiantly remain level. Defiantly an issue. All your servo horns are the same length, you haven't got like the pitch channel in your tx giving more travel? Is it the same servo being out at full neg and full positive? Also regarding the thrust bearings, They should be positioned on the outside (closest to the blades). The other bearings are not designed to take end load. At the minute the outer bearings will be taking the thrust and your thrust bearings probably wont be working much, if at all. They are on the ends for a reason so I suggest swapping them back.

[aparkin]

+1 with sp4rky m4rky

[giles]

The swash should defiantly be level throughout. With the heli sat on the bench, motor unplugged, going full neg to full positive the swash should defiantly remain level. Defiantly an issue. All your servo horns are the same length, you haven't got like the pitch channel in your tx giving more travel? Is it the same servo being out at full neg and full positive? Also regarding the thrust bearings, They should be positioned on the outside (closest to the blades). The other bearings are not designed to take end load. At the minute the outer bearings will be taking the thrust and your thrust bearings probably wont be working much, if at all. They are on the ends for a reason so I suggest swapping them back.

yeah all servo horns 90 but with some subtrim to level them which maybe why they dont travel the same. Also the position of the elevator servo means the link rod from the horn to the swash is a different slope to the aileron and pitch servo rods. the elevator is the one that brings the swash out of level the most. at top makes swash slope down and at bottom makes swash slope back..wierd, used mixing to get it level with the when i was flying with flybar.

The grips can take the bearings in two different configurations, you just have to use a different washer that means the end loads will not transfer on the radial bearings. if you look at the elyq competition manual http://www.google.co.uk/url?sa=t&rct...42080656,d.d2k
it shows both ways.

[aparkin]

used mixing to get it level

erm i used travel adjustment to increase are decrease the amount a servo can travel and level swash at high and low end points (correct me if I'm wrong)

[moyesboy]

on the XYZ use the independent software form the guy in NZ (theres a link in the ZYX section on here).
Work through that and you will setup all the tx channels to get the right centre points and end points so the ZYX sees exactly the right settings at mid stick and full up and full down (I set one of the pitch curves to 50,50,50 to get the mid stick right).
Then work through the other settings to adjust the zyx to make everything right. It seems to work a treat!

So first you adjust the tx to make the zyx see all the rtight control throws and miod points (reading whjat it sees on the pc screen).
Then you set the zyx to move the swash correctly by adjusting on the pc and looking at the heli.

[Mikej]

On the ZYX you don't need to have the swash travel equal throughout - the ZYX will keep the heli level irrelevant of whether or not the travels as equal (unless you are hovering it is highly unlikely that the swash will be "flat" (i.e. perpendicular to the main shaft) much at all.

Using mixes to get the swash level is a no-no I'm afraid - you don't want to use any mixes as these will be seen as stick inputs, confuse the heli and mess up the leveling at top / bottom of movement - just set the swash level at mid-stick and let the electronics worry about keeping a flat heli in flight.

If you want to set it up spot on then go in to the Monitor screen and adjust the sub-trims to get 0 on all channels and then adjust the EPAs to give you +100 / -100 travel on the monitor screen for each channel.

Good luck,
Mike (5 ZYX FBL's + 2 Beastx + 2 Robird G31)

[miskin]

I've just purchased this

Tarot 450PRO V2 Flybarless Super Combo/ Silver (Free Shipping) [FYTL20006B-SC] - US$245.80 : Miracle Mart, RC Helicopters RC Cars RC Planes Parts for Cars Parts for Helicopters Accessory Xtreme Production

It Should be here within the next month hopefully

I know its a clone and i will probably get bashed for it but its for son to learn with . It will be mine / his first FBL that we have to setup everything else has been BNF. The Bulid of the heli wont be a problem its the FBL side thats got me kind of worried I'm used to the Flybar setup . It will be programed to a DX8 .
So i will be following this thread closely

Anthony

[giles]

On the ZYX you don't need to have the swash travel equal throughout - the ZYX will keep the heli level irrelevant of whether or not the travels as equal (unless you are hovering it is highly unlikely that the swash will be "flat" (i.e. perpendicular to the main shaft) much at all.

Using mixes to get the swash level is a no-no I'm afraid - you don't want to use any mixes as these will be seen as stick inputs, confuse the heli and mess up the leveling at top / bottom of movement - just set the swash level at mid-stick and let the electronics worry about keeping a flat heli in flight.

If you want to set it up spot on then go in to the Monitor screen and adjust the sub-trims to get 0 on all channels and then adjust the EPAs to give you +100 / -100 travel on the monitor screen for each channel.

Good luck,
Mike (5 ZYX FBL's + 2 Beastx + 2 Robird G31)

cool thanks. That is how i have set it up. will be a while till i get to test fly it with time and weather.

[giles]

first hover and no problems.pitch pumps are perfectly straight so it doesnt matter about level swash top and bottom. I thought i had set the gain on the front page for cyclic at 25 but it was actually the agility. no wonder i had to yank the sticks right over to make it do any thing. the gain was set to 40. gyro is mounted with a metal plate between two pads. had the tail vibrate quite alot due to running rich at a lower head speed but didn't effect the stability.

massive improvement over flybar, loops track straight.