All composite 1/10 F-104 scale 90mm edf plug/mold fabrication
02-25-2012, 05:39 PM
#51
RE: All composite 1/10 F-104 scale 90mm edf plug/mold fabrication
Quick mock up to fire me up to finish.
2nd wing tank .25oz lighter due to lighter seam tape and large CNC cut lightening holes in balsa discs. Totally pinhole free.
Excuse the lack of cleanliness.
It's organized though.
steve
2nd wing tank .25oz lighter due to lighter seam tape and large CNC cut lightening holes in balsa discs. Totally pinhole free.
Excuse the lack of cleanliness.
It's organized though.
steve
02-25-2012, 09:06 PM
#53
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RE: All composite 1/10 F-104 scale 90mm edf plug/mold fabrication
Hi Steve,
Great stuff...a labor of love. I have the BIG Jacknife sport jet. I prep my molds with freekote, shoot some K-36 primer and do the lay-up. I seam the tanks using balsa square stock along the seam, and then Aeropoxy to close it up. I pop the part and it's already in grey primer. Finish is as good as the mold. Keep up the great work!! Visit the Knife at www.wereoutofthisworld.com
Take care,
Jack Holland
Team Jacknife
Great stuff...a labor of love. I have the BIG Jacknife sport jet. I prep my molds with freekote, shoot some K-36 primer and do the lay-up. I seam the tanks using balsa square stock along the seam, and then Aeropoxy to close it up. I pop the part and it's already in grey primer. Finish is as good as the mold. Keep up the great work!! Visit the Knife at www.wereoutofthisworld.com
Take care,
Jack Holland
Team Jacknife
02-25-2012, 10:20 PM
#54
RE: All composite 1/10 F-104 scale 90mm edf plug/mold fabrication
Hi Jack
Thanks.
Nice large jet. A talent.
Yes a labor of love. Most days anyway.
Years ago we used to offer full composite warbirds (1990). In the days of production, we used to prime in the mold. For me personally, I like to see through my models.
steve
Thanks.
Nice large jet. A talent.
Yes a labor of love. Most days anyway.
Years ago we used to offer full composite warbirds (1990). In the days of production, we used to prime in the mold. For me personally, I like to see through my models.
steve
02-26-2012, 10:02 AM
#55
RE: All composite 1/10 F-104 scale 90mm edf plug/mold fabrication
Jack
The Jacknife is a fine looking ship. I love the military paint scheme, VF-103 was my last command before I retired from the Navy, seems to be the most commonly modeled squadron.
Peace, Wolf
The Jacknife is a fine looking ship. I love the military paint scheme, VF-103 was my last command before I retired from the Navy, seems to be the most commonly modeled squadron.
Peace, Wolf
03-03-2012, 12:34 AM
#56
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RE: All composite 1/10 F-104 scale 90mm edf plug/mold fabrication
Very nice, glad to see ur still working on it. How did you secured wing tips tanks of the wing, did u make any removable type of mounting system....
Any ideas about the landing gear....
Any ideas about the landing gear....
03-03-2012, 08:19 AM
#57
RE: All composite 1/10 F-104 scale 90mm edf plug/mold fabrication
Landing gear will be electric. Either a rotating set for mains, or regular. With gear doors, in any case may not matter too much.
Wing tanks will be attached with a ply section sticking out of the wing at first anchored to two slotted balsa discs in the tanks. See pics. Later with the composite permanent wing
design, like the Avons. The wing tank slips over the wing tip (I'll have to add to the tip).
Steve
Wing tanks will be attached with a ply section sticking out of the wing at first anchored to two slotted balsa discs in the tanks. See pics. Later with the composite permanent wing
design, like the Avons. The wing tank slips over the wing tip (I'll have to add to the tip).
Steve
03-25-2012, 08:55 AM
#58
RE: All composite 1/10 F-104 scale 90mm edf plug/mold fabrication
A quick update on a new method I'm trying.
These are the fuse intake ducts. i am using automotive modeling clay. It is very hard, fast and can be molded, reshaped, reused, corrected, glassed, softened to dough like feel to apply. The base carrier is still foam with around a 1/2" of sheets of clay. Not solid clay.
It is amazing stuff. Can be made to have a glossy surface as well.
Around 45 min of time invested.
steve
These are the fuse intake ducts. i am using automotive modeling clay. It is very hard, fast and can be molded, reshaped, reused, corrected, glassed, softened to dough like feel to apply. The base carrier is still foam with around a 1/2" of sheets of clay. Not solid clay.
It is amazing stuff. Can be made to have a glossy surface as well.
Around 45 min of time invested.
steve
03-26-2012, 06:53 PM
#61
RE: All composite 1/10 F-104 scale 90mm edf plug/mold fabrication
ORIGINAL: BD5wingnut
Hey Steve
Where are you sourcing the clay? Does it require heating to soften it.
Wolf
Hey Steve
Where are you sourcing the clay? Does it require heating to soften it.
Wolf
The clay is from Fiberglast. It is Y2K clay. Yes, it has to be heated to be applied. For best results it should be slow heated to heat all the way through. I roll mine into 1/2" thick flat sheets and put it in my truck on sunny days and it is very easy to apply. It comes in a 2" solid rod around 10" long. Very hard when cold. Cannot even bend 2" rod.
But once you get used to using it, it's really great and fast. Plus no DUST!!!!!!!!!!!!!!!!!!!!
Steve
03-31-2012, 06:07 PM
#63
RE: All composite 1/10 F-104 scale 90mm edf plug/mold fabrication
Trying the clay out on the forward section for the canopy plug. I think it's gonna work.
By the way, I took a quick "bondo" mold off one of the intakes (formers showing) to get a glass intake laid up and and mate up to the fuse intake.
The clay after wax and pva, around .5mm stuck to the bondo. Was easily removed with a small scrub brush and warm water.
Steve
By the way, I took a quick "bondo" mold off one of the intakes (formers showing) to get a glass intake laid up and and mate up to the fuse intake.
The clay after wax and pva, around .5mm stuck to the bondo. Was easily removed with a small scrub brush and warm water.
Steve
04-03-2012, 07:28 PM
#64
RE: All composite 1/10 F-104 scale 90mm edf plug/mold fabrication
Pulled a quick bondo mold off one of the clay intake plugs. Then laid up a quick dirty polyester glass intake to fit to fuse, then to be finished as a plug and the final epoxy glass mold will be made from that.
Also, I made the intake spike plug out of clay on my lathe. It did manage to stay in the chuck while I trimmed it with a spring steel metal "blade". Finished nice enough to pull a mold right off the lathe.
Steve
Also, I made the intake spike plug out of clay on my lathe. It did manage to stay in the chuck while I trimmed it with a spring steel metal "blade". Finished nice enough to pull a mold right off the lathe.
Steve
04-04-2012, 10:05 AM
#68
RE: All composite 1/10 F-104 scale 90mm edf plug/mold fabrication
BD5
The cutting tool is a drywall knife blade I cut into small strips and used those as needed. Held by hand as in wood turning with "rest". I guess.
At this point, I have parted the clay plug spike on it's center line to produce 2 mold 1/2 spikes. They are exactly the same, parted with styren plastic.
Quick dirty temporary bondo mold to get parts out of and fabricate rest of intake duct,liner, ect.
I'll use this same method for my composite MiG 21MF spike later.
Steve
The cutting tool is a drywall knife blade I cut into small strips and used those as needed. Held by hand as in wood turning with "rest". I guess.
At this point, I have parted the clay plug spike on it's center line to produce 2 mold 1/2 spikes. They are exactly the same, parted with styren plastic.
Quick dirty temporary bondo mold to get parts out of and fabricate rest of intake duct,liner, ect.
I'll use this same method for my composite MiG 21MF spike later.
Steve
04-05-2012, 07:32 AM
#69
RE: All composite 1/10 F-104 scale 90mm edf plug/mold fabrication
How the bondo mold turned out.
The clay survived very well. loss of about .25mm of surface skin mostly. This was due to the clay being used without adding any clay. No air pockets I would guess.
The bondo does have a few layers of scrap glass glass to reinforce the bondo. It's not only bondo.
Next the glass parts.
Steve
The clay survived very well. loss of about .25mm of surface skin mostly. This was due to the clay being used without adding any clay. No air pockets I would guess.
The bondo does have a few layers of scrap glass glass to reinforce the bondo. It's not only bondo.
Next the glass parts.
Steve
04-06-2012, 06:46 PM
#70
RE: All composite 1/10 F-104 scale 90mm edf plug/mold fabrication
Hi All
Got some glass intake spikes out of the bondo molds today. Now to set the intake boundary layer at fuse, and fabricate the fuse side of the intake to have the forward sweep at the intake "LE".
The clay makes things very fast and easy. Total time in fabricating plug, to bondo mold, to part is around 1hr 15min.
Steve
Got some glass intake spikes out of the bondo molds today. Now to set the intake boundary layer at fuse, and fabricate the fuse side of the intake to have the forward sweep at the intake "LE".
The clay makes things very fast and easy. Total time in fabricating plug, to bondo mold, to part is around 1hr 15min.
Steve
04-13-2012, 07:31 AM
#75
RE: All composite 1/10 F-104 scale 90mm edf plug/mold fabrication
A quick pic of the only use I have for monocote today ( can also use mylar, or glass table,ect...waxed of course ).
Making sheets of composite. In this case, I need a flexible smooth surface sheet for the scale intake at the boundary layer.
The material is "e" glass crow foot weave around 3.5oz x 2 . It yields a perfect pin hole free finish. I used epoxy since I ran out of the polyester resin catalyst.
Peels clean from monocote. Surface will be as shinny as monocote
Cheap and very easy.
Steve
Making sheets of composite. In this case, I need a flexible smooth surface sheet for the scale intake at the boundary layer.
The material is "e" glass crow foot weave around 3.5oz x 2 . It yields a perfect pin hole free finish. I used epoxy since I ran out of the polyester resin catalyst.
Peels clean from monocote. Surface will be as shinny as monocote
Cheap and very easy.
Steve