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« Reply #25 on: December 04, 2011, 10:50:31 AM »
PiyushI
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... two pieces on either end of thermo.  using hot wire foam cutter drawn along the aerofoil. Slightly sanded over for finishing
exactly, the method was same, tool was differ Shocked. i didn't yet used hot wire cutter. I will try to find how to get that tool.


...one you already have
@msri not everyone has access to a hotwire cutter
you are right, Rajiv.

 Help Me CAN anybody show how to prepare hotwire cutter or from where it can be purchased?
« Last Edit: December 04, 2011, 11:01:15 AM by PiyushI » Logged

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« Reply #26 on: December 04, 2011, 02:53:02 PM »
RajivReddy
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you can see how to make the hotwire foam cutter here:-
http://www.instructables.com/id/Hot-wire-foam-cutter/
more than 1000 Indian Rupees !!! Shocked
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« Reply #27 on: December 04, 2011, 03:08:16 PM »
PiyushI
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@rajiv
 Thanks
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« Reply #28 on: December 04, 2011, 03:24:38 PM »
msri21
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Did the maiden today, model was heavy and under powered. Hence planning to change the power system. And reduce some weight on coro side. She had a short fligh and nose dived. Feel every thing is fine except power. Will do that this week.
@PiyushI: hot wire cutter is very simple to make search in the forum. Already threads are available. I myself made using that information.
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« Reply #29 on: December 05, 2011, 01:43:36 AM »
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« Reply #30 on: December 11, 2011, 07:33:45 PM »
Mooni
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Targeted weight was 550g, now i feel it heavier than i planned. i may have to reduce some weight on fuse (Coro). Suggestion for reducing the model weight is appreciated
try making the fuselage with 1 cm styro sheets cut with the help of hot wire cutter. Use coro to give strength to the landing gear, wing attachment and motor mount area.
« Last Edit: December 11, 2011, 08:27:32 PM by SunLikeStar » Logged

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« Reply #31 on: December 20, 2011, 08:23:49 PM »
sbajare
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hi,

here is my piper J3. made from 3mm coro. All up wt is around 2.8kgs.

flys with a 5s lipo and a 650kv motor turning a 12x6 prop.




DSC01105.jpg
Re: Electric J3 Cub Build
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« Reply #32 on: December 20, 2011, 09:03:55 PM »
PankajC
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Learning to Fly



@sbajare.. what are the dimensions? Looks fab
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