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Old Aug 10, 2012, 01:01 PM
Egads! It's a GIRL!
Lil Stinkpot's Avatar
United States, CA, San Jose
Joined Jul 2011
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Quote:
Originally Posted by samwei1950 View Post
See page 2 of the thread
Sam
I saw those. I was hoping for scans, maybe some build notes, airfoils, a website.

ETA: I found this: http://www.rcgroups.com/forums/showthread.php?t=1484283
I'll check his YT channel later.
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Old Aug 10, 2012, 11:46 PM
DIY Mania from Taiwan
Taiwan
Joined Aug 2011
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Checked his website,this is one of his 21 projects,the Japaness flying kite,pls click and see the pix,any help?
Sam
http://www.microworlds.jp/logo1/inak...011/index.html
vid attached
TOMBI2011 (1 min 53 sec)
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Last edited by samwei1950; Aug 11, 2012 at 12:00 AM.
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Old Aug 13, 2012, 06:42 PM
hass-alfed and bass-ackwards
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United States, AZ, Chandler
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Awesome sculpting skills V1VrV2! You guys have mentioned twisting the wingtips for a control method... Could you make it a wingeron type control system, but with an extended drive to twist just the tips of the wings?
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Old Aug 21, 2012, 08:40 PM
Mongo like wind. Wind Good.
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Fuselage molds are done. Pix attached:
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Old Aug 21, 2012, 08:45 PM
Registered User
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So showing us the molds mean you will be making more fuse for folks like me...?
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Old Aug 22, 2012, 01:07 AM
Mongo like wind. Wind Good.
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Making a test fuselage tomorrow. Had lots of trouble getting the plug out of the molds. Didn't stick, just hard to release due to all the weird shapes involved. The test fuselage will flex unlike the plug which is rigid. Might not be as much an issue.
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Old Aug 22, 2012, 11:30 AM
DIY Mania from Taiwan
Taiwan
Joined Aug 2011
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Quote:
Originally Posted by V1VrV2 View Post
Making a test fuselage tomorrow. Had lots of trouble getting the plug out of the molds. Didn't stick, just hard to release due to all the weird shapes involved. The test fuselage will flex unlike the plug which is rigid. Might not be as much an issue.
Use wood hammer gently knock around the weird shape areas before getting the plug out of the molds.
regards
Sam
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Old Aug 22, 2012, 01:24 PM
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Before you start banging on it with a hammer try using air.
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Old Aug 22, 2012, 06:49 PM
hass-alfed and bass-ackwards
carlsoti's Avatar
United States, AZ, Chandler
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I wish I had the time and resources to learn how to build molds. It's like a hobby within a hobby.
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Old Aug 22, 2012, 06:59 PM
2012 NZ Speedcup - 231 MPH
DownUnderPilot's Avatar
New Zealand, Tasman, Richmond
Joined Mar 2006
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Quote:
Originally Posted by samwei1950 View Post
Use wood hammer gently knock around the weird shape areas before getting the plug out of the molds.
regards
Sam
Are you using PVA? Soaking the whole thing in warm water works a treat.
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Old Aug 22, 2012, 08:33 PM
Mongo like wind. Wind Good.
V1VrV2's Avatar
Joined Apr 2004
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OK guys, first fuselage is built and curing now. Pulling it out tomorrow. Keep your fingers crossed It doesnt stick too bad or its back to square one!

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Old Aug 23, 2012, 11:12 AM
Mongo like wind. Wind Good.
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The molds are destroyed. The geometry the fuselage created a couple places where the part was locked in the mold mechanically. The eye sockets and feet were the main culprits. Looks like the molds will have to be re-built into several sections to split the negative areas.

The good news is I saved the fuselage. It is perfectly usable as is and before spending gobs of time making new molds I plan on going ahead with building a prototype.

Feels like I wrestled with a Grizzly bear getting the part out...
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Last edited by V1VrV2; Aug 24, 2012 at 10:13 AM.
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Old Aug 23, 2012, 11:53 AM
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Oh man!! So sorry to hear that. All that work... stay on it! You will figure it out.
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Old Aug 23, 2012, 11:55 AM
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Can you salvage parts of the mold? Maybe saw off the head and feet area, and re-use them?

Maybe a more flexible silicon mold would work?
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Old Nov 19, 2012, 02:13 PM
Mongo like wind. Wind Good.
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Joined Apr 2004
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Ok. Got some more done on the prototype, the basic structure is done. Deciding right now on how to install the controls and radio gear. No shortage of space in the fuselage so that should not be a problem.

Tip feathers are screwed on with nylon bolts so they can be removed and replaced easily if damaged.
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Last edited by V1VrV2; Nov 19, 2012 at 05:14 PM.
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