Direct To Swash (DTS) mod

[Ber60]

Hi guy's tought I share this mod with you .
It is a modified version of the Direct To Swash mod
http://www.helifreak.com/attachment.php?attachmentid=44137&stc=1&d=1207237979

Inside the frame
http://www.helifreak.com/attachment.php?attachmentid=44138&stc=1&d=1207237979

Lexan (plexi like but softer) servo holder
http://www.helifreak.com/attachment.php?attachmentid=44139&stc=1&d=1207237979


As you can tell I like to mod and had a new camera to test
Hope you enjoy the pics
More pics
http://www.helifreak.com/attachment.php?attachmentid=44156&stc=1&d=1207256449

http://www.helifreak.com/attachment.php?attachmentid=44157&stc=1&d=1207256449

http://www.helifreak.com/attachment.php?attachmentid=44158&stc=1&d=1207256449

[DierWolf]

Ber60...

When you get the chance add some more detail, this will be stickied shortly.

[DierWolf]

Maybe in White ? :)

Vh9wNCLBTQA

[Ber60]

From who is that albino ?
I think I recognize the lazy mary tough

What no background music ?

[DierWolf]

Ber60 your Camera rocks, mine used to work as good as that then all of a sudden its crap... anyways..

Here folks, didnt want to sticky the other thread with Trex Head video so its also appropriate here.

BELT CP WITH DTS MOD & T-REX HEAD.

k1XVAE6ETqY

[DierWolf]

DTS MODIFICATION - ALTERNATIVE VERSION

Advantages to the DTS mods are:

1) Swashplate is more precise now, hardly any CCPM interaction due to slop.
2) The heli is much lighter after the mod with the removal of 4 linkage rods, 3 bellcrank levels, 6 bearings and abit of the frame material.
3) Option of mounting the Lipo on the upper part of the frame thus improving the roll characteristics of the heli as the cg is closer inline with the tail boom.
4) Cheap to carry out, the E352 mounts (Alternative method only) costs only $5.20 and is the only item you'll need. I believe this is the most "bang for the buck" anything that I have ever done.
5) The helis now flies very precisely, there is no pitching during forwards, punchups are vertical (not slewing to the side as previously) and the heli seems to be a little more agile (due to the weight reduction)

http://i30.tinypic.com/30rmjrc.jpg

http://i25.tinypic.com/2lbme84.jpg

http://i31.tinypic.com/23wjm11.jpg

http://i29.tinypic.com/fdhthl.jpg

http://i29.tinypic.com/1p9p4l.jpg

[CodeB4U]

I have the E325 servo holders. Can you take a better picture of where you mounted them? Maybe an outline of the holder and the body? Picture is too dark, it's hard to distinguish what is what and where you used the screws to mount them.

[DierWolf]

Its Trial and Error, mount your servo on the Servo Base and find where the link is the straightest to the swash with the servo arm at 90 degrees... Thats where you mount it to the frame

[DexRast]

can anyone point me in the direction of the servo mounts, ive checked ebay and various other searches and cant find them anywhere,

thanks in advance

[DierWolf]

Sorry the new crew should have thought of that :) But we were so oppressed with not being allowed to post links to sites we forgot.

Servo Tray your looking for is for the Mini Titan E325..

This site has some.

http://www.eboyztoyz.net/index.php?op=showitem&sku=8181

http://www.eboyztoyz.net/images/I6070/I6070_1.jpg

[$$shane$$]

Anyone ever seen a DTS mod on a carbon Belt frame?

[DierWolf]

Not yet, and personally i would not do it with that frame... Unless you want to experiment that is.

[$$shane$$]

My frame should show up in about a week and a half. I'll do some measuring and 'fiddling' and post my results.

[DierWolf]

It can be done, just i dont trust Esky's single direction weave of the carbon fiber that much.

You can do it the way they have it on the King II, look up some pictures of its carbon fiber frame and you will see how the 2 servo's are mounted at the rear and the one up front on the side.

God only knows why they would switch from direct to swash to links on a newer bird.

[helihathnofury]

Ber60,
My DTS mod is very similar to yours, but I have not cut as much of the left side support away to make way for the pitch servo. This has left me with less servo travel due a shorter servo horn. I believe that i will have to cut more away, so on your mod, has this made the left side if the frame a bit weak, or have you strengthened it somehow?

Mike

[DierWolf]

Look at the side rib right at the center of the frame in line with the shaft.

There is a High ridge then lower section then back up to a high ridge again... cut away
up to the 2nd high ridge, leaving the ridge there, that should allow enough space for
the servo arm and also keep the servo from touching the shaft.

Again the servo acts as a replacement beam so really no additional strengthening is needed, ifyou want to add you can do it right at that section the same way you did the bracing for the back 2 servos.

[helihathnofury]

Yes, thanks I see what you have done; will need to do the same [when dexterity permits!!].

Mike

[Ber60]

Dierwolf you have a way with words I like :thumbup:

[helihathnofury]

What's this? Some form of mutual admiration society? Wouldn't be allowed on the 'other' forum !!!
:shock:

[Ber60]

HaHaHa THANKS Thanks LOL

Man I still love it

[niteflyer]

hi...ive juz blinged my bcp rotor head...flying ok but wondering the pros n cons of using that e325 servo tray on the bcp..if its GOOD then id like to go that way too!thx!

[DierWolf]

Never did the mod that way (i placed my servos inside the heli) but the original way was with the e325 servo mounts and never heard any complaints.

The reason i opted to go with the internal servo mod is you get a better direct straight line to the swash whereas with the servo mounts you still have a little angle.

[Ian 777]

Dierwolf is right

I Made my own servo mounts to get the position just right and it works great, but having the servo's in the middle of the frame is a better layout. Not sure weather moving the front
servo is really worth it as the original link is very good and pretty free from play:)

All the bes Ian

[helihathnofury]

I must have had a friday afternoon Belt, as the pitch servo linkages were really sloppy, and I really couldn't do anything about it!!!! The DTS mod is a good one and I can't wait to get my bird in the air again.

Mike

[$$shane$$]

So on friday I received my carbon frame and all the CNC bearing blocks...cool stuff. I spent saturday and sunday putting it together and adding the DTS mod. i did alot of measuring and trial and error stuff and finally went with the E325 servo mounts. With the extra real estate on the carbon frame (there's no cutouts like in the plastic frame) it allowed me to mount the servo mounts where ever I wanted, therefore allowing for a very precise and perfect 90 degree mount to the swash. It turned out pretty awesome.
after 2 days of working on it, leveling the swash and checking the radio I noticed that most of my servos were reversed from the plastic frame setup...no problem, I'll just reverse them in the radio...

As I was in the carport getting ready to spin it up and check the blade tracking I plugged the motor leads back in and for some reason the motor never kicked on as I was moving the collective...hmm...weird :confused:. Well, I thought I would unplug and replug the battery and let the ESC re-initialize. Brilliant! it worked! and as soon as it beeped 3 times it spun up at FULL THROTTLE! Just as a small note in case this wasn't completely obvious to everyone...the heli really doesn't like going from 0 to 3000 RPM instantly!

So somewhere in my infinite wisdom I reversed the throttle so at bottom stick it was full throttle and at top stick it was at zero throttle. :arggg: Now I have to replace the main gear (the current one is perfectly smooth all the way around), the spindle, and possibly the main shaft.

Oh well, live and learn. next time I will back the motor away from the main gear to verify proper operation after a major configuration change.