All Composite 1/7th P-40E Mould Build
#276
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RE: All Composite 1/7th P-40E Mould Build
No disrespect intended, but if you can't figure out how to get that tail on, then this sort of thing is not for you. You need to stick to kits.
#279
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RE: All Composite 1/7th P-40E Mould Build
Also got me a royal b-17 on the way, only thingm is, the wing panels had been started just spars and ribs glued, forget'em I'll build new!
I'm tracing all parts and will distribute to who ever asks but mine will be built from contest balsa.
also instead of all that heavy carved balsa to make the nacelles on the b-17, I'll build two nacelles as stated and carve, but will make molds and use glass to keep weight down.
I'm tracing all parts and will distribute to who ever asks but mine will be built from contest balsa.
also instead of all that heavy carved balsa to make the nacelles on the b-17, I'll build two nacelles as stated and carve, but will make molds and use glass to keep weight down.
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RE: All Composite 1/7th P-40E Mould Build
I probably posted this in the wrong thread before.
My question was how did you get the panel lines and rivits in the mold? Did you build them on the plug first?
If so how did you make the panel lines, did you use drafting tape? I'm going to build a Constellation fuselage mold. I'm about done with the fuse but still have to add the detail before building. I'm sorry, a lot of questions.
Dennis
My question was how did you get the panel lines and rivits in the mold? Did you build them on the plug first?
If so how did you make the panel lines, did you use drafting tape? I'm going to build a Constellation fuselage mold. I'm about done with the fuse but still have to add the detail before building. I'm sorry, a lot of questions.
Dennis
#283
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RE: All Composite 1/7th P-40E Mould Build
ORIGINAL: dleboeuf
I probably posted this in the wrong thread before.
My question was how did you get the panel lines and rivits in the mold? Did you build them on the plug first?
If so how did you make the panel lines, did you use drafting tape? I'm going to build a Constellation fuselage mold. I'm about done with the fuse but still have to add the detail before building. I'm sorry, a lot of questions.
Dennis
I probably posted this in the wrong thread before.
My question was how did you get the panel lines and rivits in the mold? Did you build them on the plug first?
If so how did you make the panel lines, did you use drafting tape? I'm going to build a Constellation fuselage mold. I'm about done with the fuse but still have to add the detail before building. I'm sorry, a lot of questions.
Dennis
#284
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RE: All Composite 1/7th P-40E Mould Build
I've been selling just straight fuses, but this week I'm making up a cowl mould so that I can include the cowl with the fuselage. I was just about to decide on a cooling fin angle and glue it place before doing the panel lines etc.. Then I thought "should I be trying to make them functional?" then I thought "I wonder if anyone else has done this."
SINGLE MOULD? (Everyone gets the angle I settle on - partially open for air flow with minimum drag)
TWO MOULDS? (Everyone glues their own in place or decides how to make they own functional)
HAS ANYONE EVER MADE A FUNCTIONAL ONE?
I'm thinking about a draw-wire through eyelits at the open end and eyelits over a fixed wire in the front for a hinge. (how to get enough servo throw - long throw arm I suppose?)
Don't be afraid to chime in with opinions, ideas, whatever - I won't shoot you down - you're in friendly skies here!
SINGLE MOULD? (Everyone gets the angle I settle on - partially open for air flow with minimum drag)
TWO MOULDS? (Everyone glues their own in place or decides how to make they own functional)
HAS ANYONE EVER MADE A FUNCTIONAL ONE?
I'm thinking about a draw-wire through eyelits at the open end and eyelits over a fixed wire in the front for a hinge. (how to get enough servo throw - long throw arm I suppose?)
Don't be afraid to chime in with opinions, ideas, whatever - I won't shoot you down - you're in friendly skies here!
#285
RE: All Composite 1/7th P-40E Mould Build
Slow Low Try thisfrom RCU - Warbirds and Warplanes section - by RAM3500-RCU http://www.rcuniverse.com/forum/m_10291702/tm.htm
looks like the method your looking for.
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RE: All Composite 1/7th P-40E Mould Build
ORIGINAL: Luft-Gangster
Slow Low Try this from RCU - Warbirds and Warplanes section - by RAM3500-RCU http://www.rcuniverse.com/forum/m_10291702/tm.htm
looks like the method your looking for.
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RE: All Composite 1/7th P-40E Mould Build
ORIGINAL: RTK
That would be so cool
That would be so cool
http://www.oregonscaleaviation.com/R...hermaCowl.html
#289
RE: All Composite 1/7th P-40E Mould Build
Subscribed. Will be watching with interest and once again to learn from the Master. Thanks Slow Low, reading your forum gave me the inspiration and the knowledge to try composits. I did learn the hard way that I need beter ventaliation in my build room. Will continue when I can open widows and at that time install a better ventaliation system. attached is my first try at composits.
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RE: All Composite 1/7th P-40E Mould Build
ORIGINAL: Luft-Gangster
Subscribed. Will be watching with interest and once again to learn from the Master. Thanks Slow Low, reading your forum gave me the inspiration and the knowledge to try composits. I did learn the hard way that I need beter ventaliation in my build room. Will continue when I can open widows and at that time install a better ventaliation system. attached is my first try at composits.
Subscribed. Will be watching with interest and once again to learn from the Master. Thanks Slow Low, reading your forum gave me the inspiration and the knowledge to try composits. I did learn the hard way that I need beter ventaliation in my build room. Will continue when I can open widows and at that time install a better ventaliation system. attached is my first try at composits.
Much respect sir; you're a member of an elite few - looks great from here! Spend the money on a good laminating resin now that you have a mould made. You'll find that it's not really all that much more expensive because there's not much used in a part layup.
Here is a good one that I've been keeping to myself, but you're a DO'R and I like DO'rs. lol
AEROPOXY PR2032 is a medium viscosity, unfilled, light amber laminating resin that is designed for structural production applications. Three hardeners are available for use with PR2032. PH3660, has a 1-hour pot life. When used with either of these hardeners, the system gives excellent wet-out of fiberglass, carbon and aramid fibers. Special additives have been incorporated into this system to promote chemical adhesion to fabrics made with these fibers. The AEROPOXY systems will cure completely at room temperature, or can be given an elevated temperature cure. AEROPOXY contains no MDA (a known liver toxin and carcinogen) and meets or exceeds current OSHA requirements for safe use. It satisfies all structural, pot life and wet-out characteristics according to tests by Rutan Aircraft Factory, and RAF recommended its use for all homebuilt aircraft applications. The best ratio on AEROPOXY is 100:27 by weight or 3 to 1 by volume. Aircraft Spruce & Specialty Co., is an authorized factory distributor for AEROPOXY epoxy laminating systems. In early 1996 several improvements were made to AEROPOXY. The viscosity was lowered for easier laminating, the occasional slight surface tackiness in high humidity was eliminated, the AEROPOXY hardeners were modified to prevent any tendency to crystallize in high humidity, and the mix ratios were modified to an exact 3 to 1 by volume.
Can PR2032 / PH3660 be Used with Fillers?
The answer is yes. The AEROPOXY system works very well with the addition of microballons, cotton floc, milled fibers, and many other fillers adding excellent diversification. Having said that, PTM&W developed the AEROPOXY line of resins with specific uses in mind, i.e., laminating resins for composite laminates, pourable and paste adhesives for structural bonding and a lightweight filler for finish sanding, lightweight fillets and build-up of non-structural areas.
#291
RE: All Composite 1/7th P-40E Mould Build
Slow Low Thanks for the tip on AEROPOXY. Found the website, saved it in favorites and will get some ordered. Still have to make molds for the belly scoop and chin scoop. This should expedite things. FYI, I was very impressed with your home town Toronto. Stayed a few days there on our honeymoon in 1977. Still remember a really cool place called Casa Loma. Thanks again.
#292
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RE: All Composite 1/7th P-40E Mould Build
A pleasure sir. I use the 30 minute hardener as well PH3630. Be sure I get a link to your build thread!
#293
RE: All Composite 1/7th P-40E Mould Build
Slow Low Thanks again for another tip. As you can see by my join date, I'm a newbee to RCU. Building and flying since 1978. For this, I will start a build thread and get you a link. I promise, but it will go slow. Starting another HS baseball season and I coach. Umpire in the summer as well as fly. Planning my 4th trip to Cooperstown as an umpire in late July. Summers are busy!
My wife's grandfather moved to Michigan from Canada. From over by Ottawa, Renfrew/Calabogie area. Doolan's and Shanahan's
My wife's grandfather moved to Michigan from Canada. From over by Ottawa, Renfrew/Calabogie area. Doolan's and Shanahan's
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RE: All Composite 1/7th P-40E Mould Build
ORIGINAL: Luft-Gangster
Slow Low Thanks again for another tip. As you can see by my join date, I'm a newbee to RCU. Building and flying since 1978. For this, I will start a build thread and get you a link. I promise, but it will go slow. Starting another HS baseball season and I coach. Umpire in the summer as well as fly. Planning my 4th trip to Cooperstown as an umpire in late July. Summers are busy!
My wife's grandfather moved to Michigan from Canada. From over by Ottawa, Renfrew/Calabogie area. Doolan's and Shanahan's
Slow Low Thanks again for another tip. As you can see by my join date, I'm a newbee to RCU. Building and flying since 1978. For this, I will start a build thread and get you a link. I promise, but it will go slow. Starting another HS baseball season and I coach. Umpire in the summer as well as fly. Planning my 4th trip to Cooperstown as an umpire in late July. Summers are busy!
My wife's grandfather moved to Michigan from Canada. From over by Ottawa, Renfrew/Calabogie area. Doolan's and Shanahan's
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RE: All Composite 1/7th P-40E Mould Build
I'll get it cleaned up shortly, but here are some pictures of the new cowl mould. I'll need to mix up some tooling epoxy and fill a couple of small voids, but it worked out well. (nice one pc mould with good trimming edges)
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RE: All Composite 1/7th P-40E Mould Build
Canopy Mould with Vacuum Port
Hopefully, I'll be able to trim the canopy frame, put it back in the mould, and then vacuum form the clear sheet over the frame. I'll need to source some material for forming.
Hopefully, I'll be able to trim the canopy frame, put it back in the mould, and then vacuum form the clear sheet over the frame. I'll need to source some material for forming.
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RE: All Composite 1/7th P-40E Mould Build
A word to the wise.
The original canopy could not be removed from the mould. I ended up plugging the vacuum port with clay and filling the mould with acetone in order to dissolve the original. I then drained it out the port into a suitable disposal container.
All in all though, I think it turned out well.
I will trim it up later and then mould a frame around it for clamping the clear sheet.
In the end, I'd like a functional canopy on the flaps channel for my effort.
The original canopy could not be removed from the mould. I ended up plugging the vacuum port with clay and filling the mould with acetone in order to dissolve the original. I then drained it out the port into a suitable disposal container.
All in all though, I think it turned out well.
I will trim it up later and then mould a frame around it for clamping the clear sheet.
In the end, I'd like a functional canopy on the flaps channel for my effort.
#300
RE: All Composite 1/7th P-40E Mould Build
Promised I would start, so here it goes
http://www.rcuniverse.com/forum/m_10441461/tm.htm
http://www.rcuniverse.com/forum/m_10441461/tm.htm