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All Composite 1/7th P-40E Mould Build

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Old 06-09-2008, 05:07 AM
  #51
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Default RE: All Composite 1/7th P-40E Mould Build

""""I've been thinking about mixing some powdered aluminum into the epoxy for effect! What do you think about that? """""

I think that will be a mistake ,if you mixing powdered aluminum into the epoxy for MOULD will be good ,will be much strong ,I mixjng for my mould, epoxi and quartz sand for more big bulk and solidity.I can use diamond powder or graphite powder but only for MOULD ! when I make the fuse from mould for first layer I can use only clean epoxi gel or epoxi gel with some colour and thixotropie powder ,I can make and other thing - I can paint the surface of mould with acril colour sray ,then I'll put the first lear epoxi ,and then I'll put the first lear of glass
I hope you understand my English.......


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Old 06-09-2008, 07:00 AM
  #52
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Default RE: All Composite 1/7th P-40E Mould Build

No problems with your english Rumen, it's very good. After some thought I think it may make trimming a little difficult. Too bad really, because I'm sure that it would look very cool. Oh well, I will just use primer, and then paint it later. Maybe I will try that experiment with an older mould set some other time.
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Old 06-09-2008, 07:55 AM
  #53
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Default RE: All Composite 1/7th P-40E Mould Build

I mix colour with the first lear of epoxi ,I use white colour in the epoxi gel ,but you can use metalik colour for epoxi resine ,the resolt is the best [sm=thumbs_up.gif]
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Old 06-09-2008, 09:52 AM
  #54
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Default RE: All Composite 1/7th P-40E Mould Build

Thank you sir
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Old 06-10-2008, 11:51 AM
  #55
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Default RE: All Composite 1/7th P-40E Mould Build


Quote:
ORIGINAL: Slow Low

You bet Buddy! I need to make one so that I can cut it up to get former cross sections. I've been thinking about mixing some powdered aluminum into the epoxy for effect! What do you think about that?
It will just turn it black.
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Old 06-16-2008, 11:05 AM
  #56
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Default RE: All Composite 1/7th P-40E Mould Build

...just some quick pics today
All looks good so far - I've just finished joining the two main fuselage sections here and I'm about to join and attach the tail sections.
This part will validate the tool function and provide a sample part for sectioning. The sections will provide templates for formers, radio tray etc..
I removed the bottom mould sections freely by hand to provide access for the joining operation. I used 3 coats of 100% carnauba wax as a parting medium. Detail transfer looks good, and as you can see there was very little flash. To colour the epoxy I used very cheap metallic flake acrylic paint. I expect to have a complete fuselage shell by mid week. I had a few minutes to post some pics and thought I would take the opportunity. Stay tuned - more to come.
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Old 06-16-2008, 12:19 PM
  #57
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Default RE: All Composite 1/7th P-40E Mould Build

Nice....very good work.

-Scott
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Old 06-19-2008, 03:24 AM
  #58
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Default RE: All Composite 1/7th P-40E Mould Build

I just finished pulling the first fuselage for the P-40 project. There will be another video very shortly to answer some more questions for you "how-to" types.
As you can see, there is still some flash to trim up, but the functionality of the tool has been validated. I also tried a few different experiments with seam joining and layup technique, so if you look closely you will see some variations. All in all, it will serve the pupose and I can fly my plane without fear of pushing the envelope. The weight is 1.6lbs or 0.73kg. It's probably a little on the heavy side, because I wasn't too concerned at this point.

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Old 06-19-2008, 07:46 PM
  #59
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Default RE: All Composite 1/7th P-40E Mould Build

Slow Low

Looks good. Personally, I avoid priming the in the mold, can't see through the fuse.

Please, tell us, what weight glass/type and how many layers did you use.
Again, looks good................ Now get a composite wing going!!!

Steve
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Old 06-20-2008, 04:15 PM
  #60
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Default RE: All Composite 1/7th P-40E Mould Build

Hey thanks Steve. That's not primer. After some research and a couple of trials, I mixed cheap acrylic paint with the epoxy at 10% of epoxy weight before hardener. I used two layers of 7oz standard biaxial weave cloth and I can't get over how strong it is. I'm gonna start the wing soon, but I've got a couple of guys who want fuses first.
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Old 06-21-2008, 01:38 PM
  #61
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Default RE: All Composite 1/7th P-40E Mould Build

The final video in the fuselage mould how-to video series (#9) can now be found on my youtube channel on this page here www.youtube.com/b1heqh54
Good luck with your own projects! It's been a blast.
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Old 06-22-2008, 10:16 PM
  #62
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Default RE: All Composite 1/7th P-40E Mould Build

Slow Low

Impressive work.

I forgot one of the questions I normally ask first. What does it weigh as pictured.

Refreshing to see custom hand made quality composite models by a skilled individual and not a production arf where the factory leaves nothing to individualize your model.

Steve
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Old 06-22-2008, 10:39 PM
  #63
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Default RE: All Composite 1/7th P-40E Mould Build

Thanks Steve - coming from someone with direct experience I appreciate the kind words!
Everything that went into the mould came out to just about 1.5lbs but my digital scale only goes to 200g at a time, so I need to get another scale to be sure. I think it's probably a little on the heavy side, because I didn't want pinholes. But man - it's strong! Yours seem to be a similar size - is that close to where you come in at?
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Old 06-23-2008, 10:01 AM
  #64
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Default RE: All Composite 1/7th P-40E Mould Build

That really does look great! What a complex mold!
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Old 06-23-2008, 09:55 PM
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Default RE: All Composite 1/7th P-40E Mould Build

The Spitfire in the pic (hopefully) is 50" long as shown an comes in at 1lb,10oz. The one piece composite wing is 69" long and is about to get its wood/composite spars and a few ribs fabricated. It still needs a composite spinner that i need to turn out of MDF. Lots of dust on that spinner shaping.

Back to the fuse: It has no pin holds due to a thin layer of resin, allowed to cure. layup was 2X 6oz, with an additional 6oz at the nose section. It will need nose ballast, so why not.

The fuse sides have extreme stiffness due to a method my buddy and I tried on this model. It will need one former behind the canopy (or not) at the head rest and rudder post.


Unlike the Chinese type production models which use extensive wood on poor composite layups and in my opinion are on the heavy side.



Our state of mind is to build light and strong to avoid failure in flight along with durability. Nothing that can fly is crash proof.

Steve
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Old 06-25-2008, 07:19 AM
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Default RE: All Composite 1/7th P-40E Mould Build

i must say very nice plane i hope all works out. couple questions though would testors acrylic work for mixing into the epoxy? also why did you build the fuse with the stab attached?
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Old 06-25-2008, 08:13 AM
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Default RE: All Composite 1/7th P-40E Mould Build

rotccapt - I've never used Testors specifically, but I don't see why not. Like anything new, it might not hurt to take a day or two and do a small trial layup on a sheet of shelf board or something. Do "with" and "without" pieces so that you have a control sample.

I built the fuse with the integrated horizontal stab for a couple of reasons.

#1 - I wanted to be build my squadron as quickly and as efficiently as possible - I enjoy building, but I also like variety. Finishing one set of tail feathers after another can be a daunting task, and I hate being afraid to fly my models.

#2 - As I began to wonder "why not" someone said something like "man, you're an IDIOT (yes I remember that word explicitly) you can't do that - don't you think that if it could be done, someone would've done it by now". As if that wasn't ridiculous enough, everyone else in the room chimed in on his behalf with a hundred reasons that didn't wash in my books. There are some things about sheeple that really irritate me. [:@] I didn't make a fuss, I just decided that if he lived long enough to ask me for one, that his would cost three times more than anyone elses, and he would know it.
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Old 06-25-2008, 09:31 AM
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Default RE: All Composite 1/7th P-40E Mould Build

Slow

Thanks God for sheep, they at times inspire, don't they. My buddy and i also like the word "never".

Steve
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Old 06-25-2008, 09:38 AM
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Old 06-25-2008, 01:07 PM
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Default RE: All Composite 1/7th P-40E Mould Build

For that matter, why didn't you mold the wing in as part of the fuse to!?
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Old 06-25-2008, 01:36 PM
  #71
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Default RE: All Composite 1/7th P-40E Mould Build

I wish I could afford the trailer! lol
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Old 06-25-2008, 01:42 PM
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Default RE: All Composite 1/7th P-40E Mould Build

http://www.youtube.com/watch?v=TDmnjwbJrVM
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Old 06-25-2008, 02:10 PM
  #73
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Default RE: All Composite 1/7th P-40E Mould Build

this one's faster
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Old 10-01-2008, 09:37 PM
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Default RE: All Composite 1/7th P-40E Mould Build

For anyone who wants to know where all the jobs went.
http://ca.youtube.com/watch?v=3WE3yo...x=0&playnext=1

Keep buying ARF's guys.
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Old 10-03-2008, 01:05 PM
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Default RE: All Composite 1/7th P-40E Mould Build

I felt inspired by a friend today.

A Builder's Soul.

Building season's back again, that chill is in the air.
Soon the winter storms will blow, yet somehow I don't care.
There's solice in a friend they say, and yes I'll say that's true.
But all alone with wood and glue I'll find it in this too.

Another summer come and gone, the gentle breezes blew.
I found myself in air aloft on wings my fingers knew.
Far above my cares I soared, lifted up to better times.
Try to tie me to the ground but those memories are mine.

Building season's back again, that chill is in the air.
Soon the winter storms will blow, yet somehow I don't care.
There's solice in a friend they say, and yes I'll say that's true.
But all alone with wood and glue I'll find it in this too.

And now the winds of change are here that warn of colder times.
I'll shut myself inside my house, don't worry I'll be fine.
You see I'm building times remembered that once my father knew.
Crafted from a soul some say he made from wood and glue.

Building season's back again, that chill is in the air.
Soon the winter storms will blow, yet somehow I don't care.
There's solice in a friend they say, and yes I'll say that's true.
But all alone with wood and glue I'll find it in this too.

Nothing more than dreams it takes to fly to higher heights.
I still hear those words from him when I'm alone at night.
And so as winter's winds will blow and keep me on the ground,
Alone in precious silence is where you know that I'll be found.

I'll build another ship of hope to sail without a care.
From dreams and dust I'll rise again to challenge summer's air.

- A builder.
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