First step, building the main rotor head!



This shows the central head dampening adjustment bush. LH & RH threads allow the central driver to be rotated to send out the two nuts thus squeezing the orings together and making for tighter dampening. No more disassembling and changing out different duro orings!
















Fitted to the blade grips are top-hat bushes to protect the aluminium grip from the hard bolt. This bush also protrudes 0.7mm into the grip area to locate the blade-grip-washer, so no more plastic blade grip washers slipping about when inserting the blades

 

Next is the Main Shaft/Gear checking over. Already pre-assembled, just check over. All pre-assembled parts have been done up with loctite at torque wrench settings from Henseleit.

The size of the peak main gear on the Ø15mm main shaft is impressive.





Next up, the intermediate shaft section. Once again just a check over the pre-assembled parts. Damn this stuff has been well made



Next up, fitting the main and intermediate shafts to the chassis plates.


Managed to save a bit of the DryFluid Gear Lube for the heli...





Next a bit of CF sanding, got to radius one edge where the motor wires will pass over.



Very tidy little package

 

Next bolting on the skid mount and elevator rack bearing supports.





Now moving onto the Kosmik mount. This heli was designed on using a Kosmik 200 Cool, but I'm going to try a standard with fan (got it lying around). The Kosmik bolts to the CF plate with nylon bolts.





Next is time to move onto the tail boom holding section.




And now to bolt the boom holder to the main gear train section.





Next is time for the skids. Will be mounting the fixed skids now for building and the first few days out until the heli is dialed in, then will install the retractable skids once happy with the way it fly's.







Now for the tail servo mounts and tail control canter-leaver.

 

Up to the LDS system (Linear Servo Drive).

No servo horns to be seen......



Belt driven elevator servo rack arrangement.











Time for the roll cyclic racks, nice racks indeed!




The bottom guide-rod support is glued to the CF frame. I've never glued anything neatly in my life (even the misses eyelids, always messy when I overshoot the glue... )...



Now its time to open my package from RC Japan. Futaba BLS 172sv programmable servos should do the trick



Installation of the roll servos.







Installation of swash and elevator rack. Centering and swash leveling with spacer tool and using Futaba CIU2 programmer.

 

Tail boom and tail rotor time. First just glue in the threaded rod into the tail control tube.

Then apply the text decals to the boom. Applying decals is always shiz for me, not the steadiest hands and I can't ever get them aligned perfect.




Then the decals on the top of the boom. I found if I just use a couple spare kosmiks to hold it upright makes it easier to apply



Now its time for assembling the tail case components.

 

Oh wow... very nice. You can really see the quality in the parts...

 

Fully sick @ChopsyWA , Love it (and jealous!)
Simon

 

Wow the gear looks top notch, very impressive

Stuart
Citizen #507

 

nice work chopsy

 

Post above updated, once I've filled post #6 with pics I'll post new so the alerts just happen.

Will be trying to get it ready to fly by tomorrow evening, so much to do still - but keen to get her airborne!!!

 

From this morning, fitting the bicycle tube rubber pieces to the boom, then fitting the boom to the chassis.










Now time for the main shaft to get some head!

 

So onto making up some battery trays. Firstly sand the CF where the joints are so the glue gets a good hold.
Assemble together then mount onto the front of the heli and hold the tray sides together with lacky bands.
Then proceed to apply glue to the connection areas, I used Loctite 401 CA glue. Let set on the main frame for at least half-hour before removing from frame.




Next, this is what ruined my day! Getting a non-pyro motor into this bloody heli!
It is designed around the pyro 800/850 motors, where the motor shaft circlip is recessed into the stator face, allowing for the design to have the pinion face only 0.8mm away from the stator...
Unfortunately Scorpion motors have the circlip out from the stator face, and the TDR2 pinions do not have enough spigot inside to allow for recessing the pinion (pinions are grooved internally).
So I took a new motor shaft into town and turned it along on the lathe to bring the pinion closer to the stator - mine is currently 2mm away but I cannot get closer without re-machining the shaft again and doing away with the circlip...
It is fitted like this for now, will see how she goes...




This is the distance before machining the motor shaft - way too far. Sorry I didn't get a pic of after machining & fitting as I was a bit pissed off at the time about this motor dramas...

 

Nice approach to problem solving there!

 

The tail cage looks to be all one piece. I think you would have a hard time breaking this part and it would be super stable as well. Looking at the images, it would appear that the whole kit just reeks of quality.

 

Seriously love these kind off build threads, thanks for taking the time to post it up. The kit looks overly complicated but still quality shows, yeah to heli porn.

 

Sorry sounding kinda stupid but what does the bicycle tube do on the boom? Looking really out of place in a nice kit.

 

It will go over the canopy back edge where it contacts the boom to hold the canopy tight to boom. The other 4 pieces are put onto the boom so the boom doesn't have to be removed when the first tube wears, as it will eventually break down with use.
I'll post a pic soon.

 

Wow! I was just now able to sit down with my laptop and get a really good look at this thing! Transmission looks to be bullet-proof.... rack and pinion swash plate drives.....aerodynamic tail-boom cross section....
Those Bavarians don't do anything half-a$$ed these days!
It's like the Mercedes-Benz of the model helicopter world!