Logo 5/6003D Build & V-Stabi setup videos by Mercuriell

[Mercuriell]

I don't know where to get all the bits to do that, however.
John

All you need is an M3 bolt at least 20mm long (the stand off is 15mm) - some sort of plastic spacer tube (have a look at some biros or felt pens - maybe the plastic refills) and a soft head - maybe a bit of fuel tubing - amazing what you can improvise - you might have noticed a white ring in the flybar bearing on the video - as I was short the 3D bits I used 4mm ID bearings and cut up a felt pen barrel to make a plastic spacer to reduce the ID to 3mm to take the flybar bolt - seems to work so well I'm loathe to change it even now I've got the right bits!

Alternatively I think you could do something with the T600N canopy standoff (http://www.wattsuprc.com.au/product_detail.asp?pid=HN6016)

[Finless]

John, just got a 500 to do a build vid on myself but CRAP man......... I watched these made by you and...... DAMN GOOD!

I am not sure I need to do them myself as yours are VERY good!
I think I may leave this up to you and just do a review or somthing?

BTW has Mikado in some way given your props or anything?

Honeslty these are really good and some of the best work from you yet! For me to do a build vid series over again would be a DAMN waste of time.......


Bob

[Mercuriell]

Thanks for the kind words Bob - I had real bad flu and a crappy camera for most of the LOGO vids so we definitely NEED the FInless take on the build so get cracking on them - it's good to be pre-armed with some of the concerns - cable routing / screw length / washers or not / canopy supports / bearing support / which motor etc the head's gonna be similar to the L14 you did - best of all you're gonna love flying the thing - I'm the only one with Logos at our flying field and all the Rappie and Rexxie flyers are getting Logo envy !!!

PS - the only Mikado contact I've had was a request from Ralf (via Shawn) to mail off the pinion that decided to part company with itself !

[ozsteel]

Great build videos - I've used them as part of my Logo 5003D build.

Some crucial aspects not covered (or I haven't found) are...

1. Tail belt tightening - procedure and how to tell if its tight enough
2. Motor pinion to main gear installation - backlash etc. - to avoid stripping teeth

I'd appreciate your advice on these. There seems to be a lot of "main gear stripping" posts on all the Forums. You've put the new counter bearing on your 600 but what about the 500 on 6s with a Hacker A40-8L-8pole 1,300kV?

Thanks again for your help.

[Mercuriell]

The tail belt tightness doesn't seem crucial - I pulled the boom firmly out - tightened the case and forgot about it (must go check!:o) - I don't think it slides around as much as thew Rexxies - as far as the pinion is concerned the instructions are pretty specific - no backlash and no bearing load :arggg: - I made sure the pinion was exactly right position on the motor shaft, Loctite'd it then did one motor bolt up firm but not tight - just able to swing the motor and pushed it gently into the main gear then did up the other bolt - seems less gear stripping issues on the L500 due to the less torquey motors and 5/6 rather than 10S

[Mercuriell]

Been putting off V-Stabi for a while but here goes - I can't claim to be a master of V-Stabi so I have had to figure it out as I went along - maybe the videos will give people wondering whether to go flybarless some idea of what's involved :)

1st up Installing the flybarless head and what's in the V-Stabi box ! (http://video.helifreak.com/?subpath=mercuriell&filename=VSHead.wmv) - wmv 28MB

[Finless]

Been putting off V-Stabi for a while but here goes - I can't claim to be a master of V-Stabi so I have had to figure it out as I went along - maybe the videos will give people wondering whether to go flybarless some idea of what's involved :)

1st up Installing the flybarless head and what's in the V-Stabi box ! (http://video.helifreak.com/?subpath=mercuriell&filename=VSHead.wmv) - wmv 28MB

Nice!

John it looks like you have a delta on the balls coming off the grips. e.g. they look too long and are not dead center of the head? Are you SURE those balls are screwed all the way on the grips?

Bob

[Mercuriell]

I think that's parallax error Bob in the camera - hard to get true square shots - even this overhead shot looks a bit offset but measuring ball link grip bolt gives the same measurement each side so I think they're OK - interesting observation!!

PS - All my balls are screwed on nice and tight ;)

Posted 2nd video on V-Stabi Electrics - wmx 14MB (http://video.helifreak.com/?subpath=mercuriell&filename=VSElectrics.wmv)

[Mercuriell]

OK paid a second visit to the head and darn it ! Bob is right :noteworthy Thanks Man ! :smokin: - basically the aluminium cone spacers on the grips can be teased down over the moulding on the grip to further centre the ball joint - this takes quite some effort to do and I ended up tightening the screws far more than I would otherwise have cared to. Other thing is that the ball link is collared and although the building schematic shows this collar facing toward the grip, flipping it so the collar is facing away from it further centres up the ball link and reduces delta.

[Mercuriell]

Posted video on how I setup Bank switching on the radio (http://video.helifreak.com/?subpath=mercuriell&filename=VSbanksetup.wmv)- wanted to do this while it was fresh in my mind !!! Have completed filminh of basic V-Stabi electromechanical and software setup and will post them later this week - test flew today after ironing out a few bugs and she's sweet - really looking forward to filming effects in flight of changing parameters

[th3tick]

On my VStabi display, it shows the AUX2 change, but it doesn't show the little box which shows the bank number it selects as you're seeing in your video.

EDIT: Also on the main screen, it doesn't update as I change banks, even thought the Aux on Live does change with the switch...

I'm running the latest (3.12 01.01.2008), so am not sure what makes it do that... It's almost like it's ignoring the Aux change. Is that something that needs to be activated?

John

EDIT2: got it. Have to set it to Bank 0/1/2/3 on the Overview tab, Bank Selection first...

MUCH improved over what I have my L500 set up to do, which is switch=banks 0=0, 1=2, 2=3, and try and remember ;)

[Mercuriell]

EDIT2: got it. Have to set it to Bank 0/1/2/3 on the Overview tab, Bank Selection first...

One of the first things I mentioned to do :roll: !

Also there is a later software John - I am using the (Beta) version 3.1 (http://vstabi.de/download/setup3.13.exe)3 which may have the box number enhancement ! I think Uli may have changed the defaults for collective gain and rate for the Logo5/600 plug in as that was very soggy in v3.12 :)

[th3tick]

One of the first things I mentioned to do :roll: !

I know. It's awfully embarrassing...

Will upgrade, but am worried about what that might do with the settings I already have... Leave the numbers alone but have different meanings? :wow2:

EDIT: ^^ still not reading well - got it now. Good thing it flew well today ;)

EDIT2: On the startup screen, it says 3.13 21.02.2008, but the 3.12 01.01.2008 is right for what it says on the main screen... I'll update to yours and see what's up.

John

[Mercuriell]

Long 30 min video posted about V-Stabi electromechanical setup in software, from scratch, unfortunately to make it a reasonable size screen res suffered of the screen shots but if you have used or have the software you will get around OK. If there is a demand I'll break it into bite-sized segments at higher res:

Electromechanical setup on V-Stabi on Logo 5003D - wmv 49MB (http://video.helifreak.com/?subpath=mercuriell&filename=VBES.wmv)

[Finless]

John just a tip next time you want to show video of a PC screen. I use a piece of software called "my screen recorder". It doesnt use a video camera. It records your screen mouse etc to a AVI and makes super small videos. You record audio with your PC mic.

Bob

[Finless]

John, just so happened I was messing with a V-stabi yesterday. I just watched your entire video. Good job. Explained some things I couldnt figure out and that was classic mode vs extended. We to noticed trims were hosed when it was set to extended.

But in the video you say that extended is for use without pressure sensors but that trims arent remembered, so you set up in classic. Did you later set it back to extended? If it is left in classic mode is it expecting feedback from the pressure sensors in flight? Reason I ask is we left it in classic and had pitch up problem in fast forward flight.....

Bob

[Mercuriell]

John, just so happened I was messing with a V-stabi yesterday. I just watched your entire video. Good job. Explained some things I couldnt figure out and that was classic mode vs extended. We to noticed trims were hosed when it was set to extended.

But in the video you say that extended is for use without pressure sensors but that trims arent remembered, so you set up in classic. Did you later set it back to extended? If it is left in classic mode is it expecting feedback from the pressure sensors in flight? Reason I ask is we left it in classic and had pitch up problem in fast forward flight.....

Bob

Thanks for screen recording tip Bob :) I'll refilm the video bits but had better get some flying in too ! Certainly trying to balance flicker, moire and resolution filming LCD screens I found unexpectedly tricky !

Classic mode relied on the air pressure sensor to input info re velocity into the V-Stabi algorithm to prevent the tendency to pitching up in FFF - later Uli found ways of correcting this via the programming and this is the Extended Mode - the payback is that hover is a bit more twitchy. I don't know why the trim settings aren't remembered in Extended Mode but that's the reality. So the advice is to setup in Classic and trim up then swap to Extended Mode where your trim settings will be recalled. The air pressure sensor is still available for those who prefer the feel of Classic Mode but want to correct for pitch up in FFF.

Amazingly (and that test flight was a true 1st flight from a scratch setup recodred by my 10yo son!) I have found little/no need for trim. I setup Classic for Normal Mode and Extended for Idleup (Banks 0 and 1) - I didn't have too much pitching in Classic Mode but I don't do blindingly fast flybys as I suspect Kevin likes :)

[Mercuriell]

As the computer screen resolution was blurred on the all-in-one video I will film a short series covering just the V-Stabi PC setup software using a screen recorder. If you want everything go to the Electromechanical setup video (http://video.helifreak.com/?subpath=mercuriell&filename=VBES.wmv)- if you want bite-sized software setup experience:

VS-Stabi Software - Basic overview avi 58MB (http://video.helifreak.com/?subpath=mercuriell&filename=VS1_Overview.avi)

[viper66]

Thanks John your a Legend. you've answered all my questions by just watching your videos
Keep up the good work look forward to seeing the Logo plugin version.