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


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Old 12-01-2006, 10:07 AM   #61
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To get this ball link positions, AND to maximize up/down movement of the wash plate, the longer part of the push pull arm (yellow line) is used:



And to my surprise, the mounting (arrow) to get it spot on was exactly in the middle of the frame as shown above.
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Old 12-01-2006, 10:10 AM   #62
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Another view, where the mounting screws are placed in the middle - directly above the original bearing mounts (arrow) of the now un-used elevator see-saw:



Placing the push-pull in this location also clears it comfortably away from the rotating tail drive (yellow line).
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Old 12-01-2006, 10:14 AM   #63
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And therefore, this is the full servo arm and ball link set up to the CCPM swash plate:



I found the third hole on the HS 65 servo arm (arrow) to be the best position to maximize swash plate movement and get +10 / -10 pitch.
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Old 12-01-2006, 10:35 AM   #64
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The only other mod required is the mounting to the canopy and cutting out a small portion of the canopy to cater for the push-pull link movement:



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Old 12-01-2006, 10:47 AM   #65
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The canopy mounting (red arrows) is moved down to an existing aluminum spacer (black arrow). The mounts were basically just screwed on:



It still gave good support to the canopy with no issues in flight. The nut and bolt at the bottom of the canopy remains as previously:

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Old 12-01-2006, 10:52 AM   #66
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Well, THATS IT!.

CCPM is the last major mod for this heli.
And after flying with CCPM the past 1 week, I can't see myself ever going back to mechanical mixing. There's just no comparison. Handling, pitch control (e.i. altitude control), predictability during flight - are all just amazing with the CCPM set up.

I probably even lost a few precious grams due to the conversion.

WORTH EVERY MINUTE (and $$) I SPENT ON IT!!!

Good luck and Happy flying! :mrgreen:
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Old 12-10-2006, 08:27 AM   #67
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Well... its been a while.
I've been bashing the CCPM set up quite a bit. Still love the stability. I did encounter one issue with the set up though. On one of my looping flights, I suddenly lost control of the heli. It was still flyable but barely!
When it got down (no crash!), this is what I found:


An over extension of Pitch link!
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Old 12-10-2006, 08:30 AM   #68
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Here's a close up:



There wasn't total lost of control as the servo could still move the push pull arm.
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Old 12-10-2006, 08:32 AM   #69
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I fixed this over extension by limiting the servo link using a long screw I got from one of my old servos:

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Old 12-10-2006, 08:36 AM   #70
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This limiting screw had to be placed (and bent) so that it contacts the servo link at exactly where its movement is maximum (during max pitch and max aileron):

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Old 12-10-2006, 08:42 AM   #71
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With this screw in place, I've never had an over extension of the Pitch servo link anymore!!


Curiously, I don't face this problem on the Aileron servo side. Dunno.
All the better.
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Old 12-10-2006, 08:44 AM   #72
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To clearify, this is my servo arrangement, as per Futaba receiver's requirement:

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Old 12-10-2006, 09:04 AM   #73
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Right. Now for some blings. I bought this really cool alum canopy mounts from WATTSUPRC:



http://www.wattsuprc.com.au/product_...asp?pid=UGT104

This is the "before" pic:



And the "after", where the mount is basically just screwed on:

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Old 12-10-2006, 09:06 AM   #74
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A very nice bling:



But I later found out that the mounting screw is very soft (arrow below):


They broke off after only a few flights (coudn't carry the battery weight).
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Old 12-10-2006, 09:08 AM   #75
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To fix this, I first filed the mounting surfaces flat, followed by drilling a 3 mm hole:

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Old 12-10-2006, 09:10 AM   #76
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I drilled to a depth of about 1.5 cm. Then I took the ends of a bent up fly bar rod, cut it and inserted it into the hollowed canopy mount:


I simply CA-ed the shaft onto the alum mount (arrow).
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Old 12-10-2006, 09:11 AM   #77
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Here's the end product:



A solid mount with an unbreakeble screw.

Right. I off to the flying field.
Happy flying! :wink:
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Old 12-11-2006, 01:10 AM   #78
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Very nice flying weather off late. So today I tried my first series of loops, rolls and inverted hover:



I'm glad to say I didn't crash!

Here's a short vid of my flying, thanks to my gf who grumblingly agreed to video tape it (thanks honey!):
http://www.youtube.com/watch?v=TwagDxd7PnU
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Old 12-11-2006, 04:19 AM   #79
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The vid in wmv, in case my youtube isn't clear.
Attached Files
File Type: wmv first_ccpm_shogun_inverted_flight.wmv (2.61 MB, 103 views)
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Old 12-15-2006, 09:43 PM   #80
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Well, my inverted hovers are getting lower, thanks to repositioning the lipo higher. Rolls are also 'easier'. Here's a vid of the heli trying to cut grass:
Attached Files
File Type: wmv grass_cutting_heli.wmv (4.64 MB, 81 views)
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