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Old May 10, 2011, 04:41 PM
Precision Aerobatics Team
demonGti's Avatar
South Africa, GP, Randburg
Joined Dec 2006
2,040 Posts
Build Log
Full fuse 3D foamy (with video.. plans now FREE)

Hi gents, its been a while since my last foamy build
But here are the beginnings of my latest full fuse foamy. I'm building it for a mate.
Its not based on anything really, and all of it has been directly drawn onto the foam so there are no plans yet, but I will make up a set of plans and build guide if she flies as expected.

dG

I was asking for a small donation. But this just wasn't working.
There are not enough of these being built and it is such a fun little plane to fly that I am making the plans
available for free here.
Thank you to those who did donate 99c
Now I hope to see many more builds being posted in this thread

Video of the maiden:
Scratchbuild 3D foamy Eratix - Maiden flight (8 min 21 sec)
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Last edited by demonGti; Nov 20, 2014 at 10:38 AM. Reason: Added link to plans
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Old May 10, 2011, 05:06 PM
Precision Aerobatics Team
demonGti's Avatar
South Africa, GP, Randburg
Joined Dec 2006
2,040 Posts
The wingspan is 910mm. I am building with my usual 10mm EPS sheet.. because its cheap and easy to repair the usual damage.
Some more pics...
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Old May 10, 2011, 08:56 PM
It's Just Foam!!!
EZglider's Avatar
Canton,Ga
Joined Apr 2010
948 Posts
Looks Sweet! Nice paint scheme,too. Can't wait for plans, you always do a GREAT job.
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Old May 11, 2011, 12:54 AM
Sometimes it work some don't
RCSquale's Avatar
Émirats arabes unis, Ras el Khaïmah, Ras Al-Khaimah
Joined Oct 2010
944 Posts
Very nice plane buddy... awaiting too for plan.
Keep it up!
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Old May 11, 2011, 01:12 PM
Precision Aerobatics Team
demonGti's Avatar
South Africa, GP, Randburg
Joined Dec 2006
2,040 Posts
Thanks guys, well lets hope its a good performer then

I've just added a locating lip and magnets to the canopy for easy battery changes.
I first recess and epoxy one in place in the canopy and cover it with clear tape and let it set keeping it nice and flush with the surface of the foam. Once its set I recess the mating magnet in the plane but make the hole a tiny bit larger. Then epoxy inside the recess, drop the magnet in and cover with a film of epoxy (allows magnet to slide a little). Then place a piece of clear tape over the lot and fit the canopy in place. The slightly bigger hole (but only just bigger) allows you to jiggle the canopy to get a perfect fit... and when the epoxy sets the canopy sits nice and straight.
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Last edited by demonGti; May 11, 2011 at 02:07 PM.
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Old May 11, 2011, 01:50 PM
Ride Blue
jholen's Avatar
United States, WA, Sammamish
Joined Aug 2006
1,495 Posts
Looks great!
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Old May 11, 2011, 02:57 PM
how'd I do that....oh
chop stiX's Avatar
South Africa, GP, Pretoria
Joined May 2011
2,260 Posts
This Plane is LOUD
looks awsome and can't wait to see it in the sky.....and fly it gents this baby is for me.sure to be a cracker.welldone Demon
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Old May 11, 2011, 03:25 PM
Precision Aerobatics Team
demonGti's Avatar
South Africa, GP, Randburg
Joined Dec 2006
2,040 Posts
Hey.. Welcome to RCG mate!
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Old May 11, 2011, 04:47 PM
Registered User
USA, ME, Ellsworth
Joined May 2010
51 Posts
Looks great... I still want to build your edge 540 except use all epp for the construction.
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Old May 11, 2011, 05:48 PM
Precision Aerobatics Team
demonGti's Avatar
South Africa, GP, Randburg
Joined Dec 2006
2,040 Posts
Quote:
Originally Posted by Nigels_world View Post
Looks great... I still want to build your edge 540 except use all epp for the construction.
EPP would be great, you can then get away with a thinner sheet for the wings, EPS gets quite weak in anything under 10mm for large panels.
If you do eventually build one please share your progress in the Edge thread.
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Old May 14, 2011, 05:57 AM
Precision Aerobatics Team
demonGti's Avatar
South Africa, GP, Randburg
Joined Dec 2006
2,040 Posts
A box of tongue depressors is cheap and they are light and come in very handy for all sorts of things. I've laminated two pairs together with wood glue to make a base to screw the landing gear to. Recess where you want the wood to go and glue it in place. !00mm or so should fine to adequately spread the load so the gear doesn't rip off too easily... Painted over with red to "hide" the wood.

Next up will be to reinforce the rudder to accept the tail wheel...
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Old May 14, 2011, 11:25 AM
Precision Aerobatics Team
demonGti's Avatar
South Africa, GP, Randburg
Joined Dec 2006
2,040 Posts
OK, the rudder needs to be reinforced for a wire tail wheel assembly.

Cut three equal pieces ±40mm long of wood (i used tongue depressor again)
Glue together with CA leaving a "groove" to accept the wire for the wheel.
Mark the location in the centre of the rudder and remove enough material for the wood to fit in nice and snug.. then glue into place.
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Old May 14, 2011, 11:35 AM
Precision Aerobatics Team
demonGti's Avatar
South Africa, GP, Randburg
Joined Dec 2006
2,040 Posts
I fabricated landing gear out of a piece of ally plate. Mark, cut, file and bend.... simple really. But CF landing gear could be nice too.
I wasn't going to make wheel pants for this plane, but I gave it a second thought and decided it would look way better with a pair of pants on
They're just two cut pieces of foam glued together. I'll sand some roundness into them and slap on some paint as soon as the glue dries.
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Old May 14, 2011, 12:00 PM
how'd I do that....oh
chop stiX's Avatar
South Africa, GP, Pretoria
Joined May 2011
2,260 Posts
Ahhhhhhh I like lookin awsome.can't wait to see it fly lovin the wheelpants
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Old May 14, 2011, 12:40 PM
Our God's Alive
100mph's Avatar
United States, NE, Bennet
Joined Mar 2011
306 Posts
Looks great, I wonder what the weight is going to be?
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