Fun, Learning, Friendship and Mutual Respect
START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopter Support > Electric Micro/Mini Helicopters > Zoom/Shogun 400


Zoom/Shogun 400 Electric - Zoom - Shogun 400 Specific Discussion


Reply
 
Thread Tools Display Modes
Old 12-15-2006, 10:04 PM   #81
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default

Better pics and lower inverts. :wink:



borneobear is offline        Reply With Quote
Old 12-15-2006, 10:05 PM   #82
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default

Grass cutting with heli gets you this:

borneobear is offline        Reply With Quote
Old 12-15-2006, 10:06 PM   #83
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default




Oh well.
borneobear is offline        Reply With Quote
Old 12-16-2006, 09:41 PM   #84
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default

Well, I didn't think there was much more mods to do. But I guess this will never end. :?

Anyway, I'm using this to mount my motor:


Which leaves me the original shogun motor mount to mod. I basically just cut it off at the yellow line and made two holes at the red dots:
borneobear is offline        Reply With Quote
Old 12-16-2006, 09:44 PM   #85
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default

I then flipped the two servo mountings over (the original front alum mount is now used to mount the motor mount - does that make sense?)

Anyway, I now have to front holes for my next mod (arrow):

borneobear is offline        Reply With Quote
Old 12-16-2006, 09:49 PM   #86
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default

With these front mounting holes, I intalled a square alum plate (red arrow) that I bent at about 45 degrees. Mounting was via two nuts and bolts:



I also added a support CF plate (?) - black arrow.
borneobear is offline        Reply With Quote
Old 12-16-2006, 09:51 PM   #87
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default

The whole purpose of this was to make an elevated battery mount:



Which functions likes so:

borneobear is offline        Reply With Quote
Old 12-16-2006, 09:54 PM   #88
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default

By elevating the battery higher, my horizontal center of gravity shifts higher. As I understand it, the closer the C of G is to the tail boom line, the easier it is to roll the heli.
Well, I don't know is this is the way to check horizontal C of G, but here's how I do it:

Hang the heli as close as possible to the tail boom line - by the main gear : :mrgreen:



And I find my head side is now slightly heavier:

borneobear is offline        Reply With Quote
Old 12-16-2006, 09:57 PM   #89
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default

I noted three improvements by doing this mod:

1) Its now very easy to install and take out the Lipo batt due to is being closer to my canopy opening:



2) My canopy now does not carry any of the lipo weight - therefore I can grind down the canopy further to lose weight.

and 3) I DOES ROLL BETTER!!!!

I love this hobby. :wink:
borneobear is offline        Reply With Quote
Old 12-17-2006, 02:00 AM   #90
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default

A vid of the CCPM mechanism: layout & movement:
Attached Files
File Type: wmv ccpm_mechanism.wmv (4.76 MB, 162 views)
borneobear is offline        Reply With Quote
Old 12-22-2006, 10:22 AM   #91
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default

It feels real weird not having anything else to do -mechanically - to this bird. Its flying perfectly.


I'm bored.


Anyway, Chopchop at RCGroups posted this wiring diagram to improve power distribution:



Original post:
http://www.rcgroups.com/forums/showp...9&postcount=23
borneobear is offline        Reply With Quote
Old 12-22-2006, 10:27 AM   #92
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default

I modified it very very slightly to improve it further. The wiring basically involves A, B and C. "A" is to improve Earth by having an additional wire to the negative return. B is to improve positive (volt/power) to the two servos which work hardest at keeping the heli up in the air and another to the gyro (also power hungry). And C is where all the positive points from the servo to the BEC meet up.
Very simple really.

Will post pictures of the set up.
Happy flying.
borneobear is offline        Reply With Quote
Old 01-09-2007, 07:52 AM   #93
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default



ENUFF SAID.
borneobear is offline        Reply With Quote
Old 01-09-2007, 08:00 AM   #94
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default

Well, I haven't posted much mods lately. Mainly cuz there hasn't been any. Which I think is a good sign that my model has finally reached its equillibrium.

I did however run into a weak spot yesterday:



The arrow above points to my servo arm connected to the push-pull rod. I'm using an aircraft connector (easy to adjust rod lenght). Where this connector is bolted to the plastic servo arm, I found tons of BINDING.
borneobear is offline        Reply With Quote
Old 01-09-2007, 08:04 AM   #95
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default

Here's the offending item:



The plastic hole where the connector is bolted to binds it as its bolt is tightened. If it is tightened too much, it will bind more, while if I tighten too little, it starts to wobble.
borneobear is offline        Reply With Quote
Old 01-09-2007, 08:14 AM   #96
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default

Here's the solution:



I use these copper bushings that were lying around my tool box.
borneobear is offline        Reply With Quote
Old 01-09-2007, 08:16 AM   #97
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default

I can't recall where they came from, but I think it was from my original #36 bird's see-saw arm support:

borneobear is offline        Reply With Quote
Old 01-09-2007, 08:20 AM   #98
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default

All I had to do was file the copper bushings to exactly the height of the servo arm, drilled a hole JUST big enough for it to be pushed in. Here's the end product:




borneobear is offline        Reply With Quote
Old 01-09-2007, 08:26 AM   #99
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default

By lining the servo arm with copper bushing, I feel very little binding of the servo rod connector.
Obviously to get rid of all the binding - bearings should be used. But I don't have that size at the moment. Another way would be to use servo ball links.
But for now, I'm happy with my copper bushings.

Happy flying! :wink:
borneobear is offline        Reply With Quote
Old 01-14-2007, 07:49 AM   #100
borneobear
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Location: Kuala Lumpur, MALAYSIA
Default

Flying in the highlands of Borneo...
Attached Images
File Type: jpg rimg0108.jpg (488.7 KB, 104 views)
borneobear is offline        Reply With Quote
Reply




Unregistered
Go Back   HeliFreak > R/C Helicopter Support > Electric Micro/Mini Helicopters > Zoom/Shogun 400


Zoom/Shogun 400 Electric - Zoom - Shogun 400 Specific Discussion

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Copyright © 2004-2011 - William James - Helifreak.com