Ultimate #36 Mod Thread (& Shogun Parts)

Ultimate #36 Mod Thread (& Shogun Parts)
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All Forums >> RC Helicopters >> Electric RC Helis >> Walkera Helis - Dragonfly, etc.. >> Ultimate #36 Mod Thread (& Shogun Parts)

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Ultimate #36 Mod Thread (& Shogun Parts) - 6/8/2006 2:41:04 AM

Posts: 480
Joined: 6/8/2006
From: Selangor, MALAYSIA
Status: offline

Hi everyone,
I posted this on another forum. Just like to share it here as well.

I've had the #36 bird a while now. And decided to Mod it to the MAX as I've got ample time (bored).

I found that this bird is great for modelling work as the plastic frame can easily be altered and improvements done everywhere.
If you've given up on the bird, maybe here you'll find some interest to do something about it.
If you've got one that you've also mod-ed beyond recognition, please put your great works here! I'm sure a lot of us are always looking for great new ideas.

RE: Ultimate #36 Mod Thread (& Shogun Parts) - 6/8/2006 2:44:38 AM

Posts: 480
Joined: 6/8/2006
From: Selangor, MALAYSIA
Status: offline

Edit.

< Message edited by borneobear -- 7/27/2006 9:20:17 AM >

(in reply to borneobear)

RE: Ultimate #36 Mod Thread (& Shogun Parts) - 6/8/2006 2:46:29 AM

Posts: 480
Joined: 6/8/2006
From: Selangor, MALAYSIA
Status: offline

Edit.

< Message edited by borneobear -- 7/27/2006 9:21:17 AM >

(in reply to borneobear)

RE: Ultimate #36 Mod Thread (& Shogun Parts) - 6/8/2006 2:49:03 AM

Posts: 480
Joined: 6/8/2006
From: Selangor, MALAYSIA
Status: offline

These are the list of things I didn't like about the #36:

1) Crappy electronics (RTF Version)
2) Non adjustable tail boom
3) Too skittish (need to tame the beast)
4) Gear mashing between main gear and tail pully not good due to bendable plastic frame
5) Smaller main gear bearing compared to the T-Rex - won't last long.
6) Non adjustable fly bar weights
7) Smaller main gear compared to the T - Rex
8) Main gear one way bearing always slipping in the plastic main gear housing
9) Didn't like the small canopy
10) Didn't like the plastic tail unit
11) Everything else.

The only thing I liked about the #36 was the main gear shaft - much better than the shogun main gear shaft.

So with this list - I got busy!

(in reply to borneobear)

RE: Ultimate #36 Mod Thread (& Shogun Parts) - 6/8/2006 2:56:54 AM

Posts: 480
Joined: 6/8/2006
From: Selangor, MALAYSIA
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First up on the list was the crappy walkera electronics. No work here, basically just buy and plonk it in:
1) Reciever : Futaba R145iP:

2) 3 units of GWS Naro+F H/BB servos:

3) Tail digital servo from Helidirect (HDS 577) (Helidirect.com)

4) I'm using the Futaba 9CHP radio:

5) 401 Futaba Gyro (worth it?)

(in reply to borneobear)

RE: Ultimate #36 Mod Thread (& Shogun Parts) - 6/8/2006 2:58:58 AM

Posts: 480
Joined: 6/8/2006
From: Selangor, MALAYSIA
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Oops, the receiver is Futaba R146ip, PCM 35MHZ.

(in reply to borneobear)

RE: Ultimate #36 Mod Thread (& Shogun Parts) - 6/8/2006 3:09:00 AM

Posts: 480
Joined: 6/8/2006
From: Selangor, MALAYSIA
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First off, I wanted to deal with the non adjustable tail boom. J-Ken tried to solve it this way:
http://www.rcgroups.com/forums/showthread.php?t=408112

I decided to try a simpler way, using tail servo holders (http://www.helidirect.com/product_i...roducts_id=1242). I just drilled two holes on the frame for the servo holder screws and CA-ed these great plastic clamps onto the frame:

(in reply to borneobear)

RE: Ultimate #36 Mod Thread (& Shogun Parts) - 6/8/2006 3:12:42 AM

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From: Selangor, MALAYSIA
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To further hold the tail boom in place, I replaced the small screws that hold the two sides of the frame together, made the hole bigger with a 2mm drill bit, and used these Hirobo link rods instead:

Like so:

(in reply to borneobear)

RE: Ultimate #36 Mod Thread (& Shogun Parts) - 6/8/2006 3:16:21 AM

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From: Selangor, MALAYSIA
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With this plastic clamp in place and using the hirobo rod / nut 'clamp', I could precisely control the placement of the tail boom.
I found this critical in my later mods.

(in reply to borneobear)

RE: Ultimate #36 Mod Thread (& Shogun Parts) - 6/8/2006 3:20:15 AM

Posts: 480
Joined: 6/8/2006
From: Selangor, MALAYSIA
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The #36 has this nasty problem of the tail drive pully eating up the pin that holds it to the shaft. This results in the shaft spinning as you trottle up, but the pully doesn't - causing your tail to go into a stupid uncontrolled anti-clockwise spin.
Here's a picture I gave to Chevron who had this persistant problem:

(in reply to borneobear)

RE: Ultimate #36 Mod Thread (& Shogun Parts) - 6/8/2006 3:22:32 AM

Posts: 480
Joined: 6/8/2006
From: Selangor, MALAYSIA
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This is how I initially solved the problem - Using the Trex / Align metal pully with grub nuts:

Some modifications were required to get it to fit in, but I didn't have those worn out pin housing issues anymore:

(in reply to borneobear)

RE: Ultimate #36 Mod Thread (& Shogun Parts) - 6/8/2006 3:27:31 AM

Posts: 480
Joined: 6/8/2006
From: Selangor, MALAYSIA
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After I saw the DF60 re-design by walkera, where the tail drive pully is placed directly onto the main gear, I decided to go with that set up.
The best value for money was to buy this Shogun kit, find xmseller (Jeff) (http://cgi.ebay.com/zoom-zap-shogun-400-CNC-6061-32-T-pully_W0QQitemZ6063234069QQihZ009QQcategoryZ2563QQtcZphotoQQcmdZViewItem).

Here was my first try at fitting this pully to the main shaft, with mostly stock parts:

This is what the original set up looks like (unimpressive..

)

< Message edited by borneobear -- 6/30/2006 1:26:53 AM >

(in reply to borneobear)

RE: Ultimate #36 Mod Thread (& Shogun Parts) - 6/8/2006 3:35:10 AM

Posts: 480
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From: Selangor, MALAYSIA
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Here's what it looked like after installation:

(in reply to borneobear)

RE: Ultimate #36 Mod Thread (& Shogun Parts) - 6/8/2006 3:41:24 AM

Posts: 480
Joined: 6/8/2006
From: Selangor, MALAYSIA
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To guide the belt down the tail boom, I had to mod this shogun tail raiser, so that i could be fitted onto the #36 frame:

I cut it in half and just screwed it on:

(in reply to borneobear)

RE: Ultimate #36 Mod Thread (& Shogun Parts) - 6/8/2006 3:59:22 AM

Posts: 480
Joined: 6/8/2006
From: Selangor, MALAYSIA
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You can (just) see the guide works in this picture:

I later figured that the tail boom allum part was unnessesary - it added weight and locating the guied near(er) to the main drive pully caused some tension/ stress to the belt. I decided to use a simpler alluminum tube, long screw and CA (+ Nylon) to placed the guide more to the back:

This is a top view of the frame - you can see the holes where I originally placed the guides and the latest possition, much further to the back, towards the tail boom support:

(in reply to borneobear)

RE: Ultimate #36 Mod Thread (& Shogun Parts) - 6/8/2006 4:07:43 AM

Posts: 480
Joined: 6/8/2006
From: Selangor, MALAYSIA
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Obviously the stock belt would not fit into this new set up. The belt that came with the shogun conversion was not nearly long enough to do the job either.
I looked high and low for a belt of suitable lenght, and found Econobelt.com:
http://www.econobelt.com/Q460/RFQ/TBelt/02.htm
They advised me to get this belt from their stocks: QB-MXL01888-012. But at USD 25, including shipping, I thought it was a bit too steep. <