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Home✈️Aircraft🚁Helicoptere-Elec-Helicopters New or Limited ActivityMS Composit › Duzi main mast too short for the x3d?
01-15-2006 11:42 PM  13 years ago
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tchavei

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Portugal

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Duzi main mast too short for the x3d?
Hi all


After a mild crash a decided to upgrade my X3d's head. I got myself a full metal duzi head plus the metal swashplate and beller mixer. Now I have some problems fitting all that on the main frames...

I noticed the main mast that comes with the duzi head is a little shorter than the original (mesured right from below the blades grips). When I put the head on its lowest setting (max positive - swash at lowest position and try to fix the mast on the main gear its about 3mm too short? The only two ways I see to fix that is:

1. Raise the swashplate a little but then at the max negative pitch the antirotation pins are out of their bed and at the lowest swashplate point I barely get any positive pitch

2. remove the E067 colar but then the main gear would float up
and down... not acceptable.

What am I doing wrong? I know the head fits the X series but I already spent 2 hours and I can't find and answer

Any help appreciated

Tony

--------------------
"Perfection and patience usually walk side by side..."
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01-16-2006 01:51 AM  13 years ago
Micro-Maniac

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Pasco,Washington Formerly: Captain Chaos

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Well you'll find that the swash isn't movable either. The non-adjustable connecting rods hold the swash position.

Have you tried assembling it on the heli. Insert the bare shaft into the mast, attach the main gear, slide on the collar, then the swash, then the head, flybar, connecting rods etc?
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01-16-2006 02:36 AM  13 years ago
DarkHorse1

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Gloucester UK

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There are some X3D's out there with Duzi head setups .
Drop Duzi and email about it (mduziREMOVETHIS@post.cz).

I have heard that a 3 mm drill bit can substitute for the main shaft, a lot stronger I would imagine.


Hornet X 3D Twister(Axi 2208/20, Tsunami), MS-116 ESC, MS-044 gyro, KOK Extréme white blades, 3xTP1320 prolites ~15mins, AUW=375g. Futaba7C

www.hornet-heli.com - General Discussion is back online.
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01-16-2006 11:05 AM  13 years ago
tchavei

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Portugal

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Hi again folks


I contacted Martin Duzi about this and it seems that the X3D uses the new MS main gear (two one way bearings) what means the duzi mainshaft is 8mm too short to work properly.

Seems I have three choices:

a) Use the old MS maingear
b) Use the new MS original shaft
c) Use Duzi's maingear (MT4011)

Well I'm not interested in using the old maingear and the original shaft is a joke (I can bend it in my hands) so either I get the Duzi's maingear or I make my own shaft.

Oh well one more week downtime.

Cheers
Tony
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01-16-2006 11:23 AM  13 years ago
Nick T

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West Sussex, UK

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tchavei

Ms do a hardned main shaft also - does not bend like the original soft one!

Bick T
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01-16-2006 12:33 PM  13 years ago
tchavei

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Portugal

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Yes, I just saw that.

Maybe I'll just get the hardened mainshaft and work with that. I'm still waiting for my tail pinion gear (the one that locks onto the maingear) to arrive since I striped it on my last encounter (doesn't look very striped but it lets the tail slip alot)

The MS shaft will need to be cut down a little since the duzi head uses a two piece mainshaft (if you can call it that) because of the single spindle they use in the head. I hope it works.

Tony

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01-16-2006 01:54 PM  13 years ago
Micro-Maniac

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You may as well get the Duzi main gear as you'll likely end up with it anyways.. Once you've started on the upgrade road, you can never stop until you reach the end don't ya know?

It traps you just like the Hotel California.. You can check out anytime you like, but you can never leave. Prisoners of our own device' and all.
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01-16-2006 02:05 PM  13 years ago
tchavei

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Portugal

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LoL Captain Chaos

In fact the Duzi gear is the last available item for the x3d that I don't have. I have all other upgrades

The truth is I don't know if it is just a set and replace item. Seems rather complicated to me to trim the main frame and modify the carbon tail braces? The pics that are available for this mod are for the Hornet II only. I already had some problems making the lipo holder rigid using the duzi servo supports. I don't know if I'll manage to modify that without any input. I've already searched the net but nothing about the X3D + duzi head + duzi main gear. A shot in the dark?

Cheers
Tony

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01-16-2006 02:22 PM  13 years ago
Micro-Maniac

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I actually didn't do any modifications to my H2 to accept the Duzi Axi-set. The c/f battery tabs didn't interfere with it so I left them intact. I couldn't fit all the nuts and bolts at the rear end like the directions show, so I just have the 2 rear landing gear bolts through the whole works holding it all together. So I actually only had to drill 2 little holes in the c/f frame.

Who says you have to follow directions and not be creative yourself anyways? I didn't even mount my Duzi servo mounts the way, or even where, the directions said so I could keep my gyro (401) in the stock location.
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01-16-2006 02:31 PM  13 years ago
tchavei

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Portugal

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Well, talk about creative. Everybody was saying 1500 kokam lipos wouldn't do for a X3D and there it is flying like a feather. Perfect balance and power (maybe too much power but 20 min flying is awesome).


Seems I'm going to order the axi set then. Lets find out if it works or not.

With the 300 twister motor the 12 tooth pinion should be enough no? Not very interested running a 3200 rpm head for now

Tony

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01-16-2006 02:53 PM  13 years ago
Micro-Maniac

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I don't know how the balance will work out on the X3D with the Axi-set. We're able to shift our batteries around on our H2s. Maybe you can ignore the directions some more and put the Duzi Axi motor mount forward of the mast instead of rearward of the mast.

I figured I'd try the 12 tooth first myself. I have it fitted, but I actually haven't tried it out yet. It turned winter on me and I'm not fond of playing out in the cold.
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01-16-2006 05:33 PM  13 years ago
tchavei

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Portugal

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Well after some email exchanges with Martin Duzi he sent me a pic of the axi maingear installed on a X3D. Suprisingly it shows the motor mounted up front for balancing purposes

I just ordered the kit so I feel poorer but happier. I also have 4 conical tail gears on order since I guess those and the 12 pinion gear will be the only stuff to strip in the future.

In the meanwhile I found about a DIY main shaft from an old cdrom and I happend to find 5 old cdrom drives here at work. I know have 2 hardened mainshafts to try out when I get home (the others were to short) That should keep me running until the new axi gear arrives.

Tony

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03-01-2006 03:36 PM  13 years ago
skiv

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uk

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tony have you got the new gear set fitted to your hornet yet as i brought the duzi head and other bits and noticed that the sharft was to short.

i ended up useing the stock sharft and had a bit hanging out the bottom.

can you post a pic of your x3d if you have the gear fitted as iam interested in getting the gear myself

many thanks stuart
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03-01-2006 04:01 PM  13 years ago
tchavei

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Portugal

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Yes I got it But the duzi head was made for the Hornet 2 so the shaft that comes with it is either:

a) Hornet 2 Maingear
b) Duzi metal gear


I choosed the later one. Heck, I have all the Duzi upgrades in the world!

I still haven't flown it though since I got a little pissed of with the little bugger and I'm still in denial.

I can post pictures of the install tonight if interested. I mounted the motor on the back side as I was planning to use 1500mAh Kokam batteries instead of the standart 1320mAH ones.


Tony

--------------------
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03-01-2006 04:03 PM  13 years ago
skiv

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yeah thanks tony some pictures would be great when you get a chance

thanks stuart
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03-02-2006 02:15 PM  13 years ago
tchavei

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Portugal

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Here's a pic for generall apreciation. If you need detailed pics let me know.

(I'm selling it cheap )


TOny

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03-02-2006 06:33 PM  13 years ago
skiv

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uk

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very nice tony

looks very much like mine the only things differnt is that you have the gear set and servo mount set.

does that servo mount make a differnce becouse iam still sticking mine down with servo tape and they do tend to flex the plate that they are sitting on.

how much you asking for it out of interest

many thanks stuart
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03-02-2006 09:39 PM  13 years ago
tchavei

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Portugal

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Hi

Glad you like it. I performed the total upgrade (you can check the list of upgrades on Duzi's site) because I hate glue... I really really hate it. And I can proudly say that the only drop of glue I have now is on the boom supports.

About the price...

Since I already invested 1,033.76$ + 82,50$ in extra spare parts and never flew it since my total (insane) upgrades (I had a mild crash on my 8th stock flight that broke the MS blades) I would be happy to get 700$ for it


Tony

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03-02-2006 10:23 PM  13 years ago
skiv

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uk

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you should fly it mine has the duzi head swash mixer set seesaw set flys really well.

you will love it you can do rolls loops standing still its amazing how tight you can loop it.

iam starting to fly my hornet more than my raptor and x400
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03-02-2006 11:36 PM  13 years ago
tchavei

rrProfessor

Portugal

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Well I only didn't test fly it because I encountered some problems setting up the CCPM... I'm used to hirobos and HPM. I spend an hour trying to make the swash true in its full travel but wasn't able too. Seems elevator servo always decided to move slower than the other two. I also was kinda fed of it already so I just put it on a shelf.

About the duzi head... I doubt it will transform the hornet to a near 30 sized stability bird. It was way too reactive for my taste in the stock form. Even my Evo 50 with 8 deg cyclic hasn't the devil inside it like this one... so far I only crashed once... and it was with the hornet. I think that explains it all.

As I'm a soon to be father I will cut a little on work and spend much more time at home... maybe I'll find the guts to give that bird another chance.

Tony

--------------------
"Perfection and patience usually walk side by side..."
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