Carbon UAV Quad build


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JohnH
JohnH
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Hi All
I have to thank Matt for his guidance and assistance with my various projects over the last six months or so, I would not have managed without your  help along with this website.
Up to this point I have moulded my own Carbon sheet using various thickness of "Soric" to produce truly professional finished Carbon sheet which I have used in building various Tri's Quad's and Hexacopters, I have also made Canopies used to cover the fragile electronic components, all of which have used the vacuum resin infusion technique.
Now I am going for the totally moulded Quad, 500mm between motors, consisting of a top and a bottom moulded shell, with internal (own made carbon plates).
Up to this point I have used the high density polyurethane foam block as a core to build a pattern, this has now been covered with one layer of 163g woven glass cloth, I will add another layer once this is cured (not sure if I should have used two layers up front).
I have attached a photo of progress of the pattern, I intend to use the pattern to make internal moulds (guided again by Carbon Mods) which I will mould Carbon Fibre shells that house all equipment and hopefully will fly.

I will try to let you know how I go on along the way.
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Image0044.jpg (1.2K views, 99.00 KB)
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JohnH
JohnH
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Group: Forum Members
Posts: 20, Visits: 151
Hi
This is the latest of my attempts.
I used one layer of 200 gram 2/2 twill on the bottom plus one layer of 2mm Soric, then another layer of 2/2 twill cloth, this was because I found it impossible to remove the Peel-Ply from the first moulded part, I did not use any peel-ply or infusion mesh on this go and relied on the Soric to pull the resin into the part.
This worked OK but has left very small pin holes on the part, I presume this is because not enough resin has been drawn into the part on infusion, (perhaps pull the resin for longer?)
On my next attempt I am going to use peel-ply pre treated with a release agent along with infusion mesh and see how this comes out.
Another thing that I did on this attempt was to use a "tack spray" to hold the cloth in place whilst working on the lay-up, this was much easier to work on the part, whilst bagging but again leaves a slight residue on the exterior of the part, after taking to the guys at E.C. they confirm that this type of adhesive will do that, they are looking into sourcing a spray that is compatible with epoxy resin (good luck).
Using the amount of cloth and Soric has resulted in a bombproof shell and should be plenty rigid enough for any abuse I may give it on the finished item.
Cheers
John
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2012-04-14 17.23.45.jpg (691 views, 1.00 MB)
2012-04-14 17.24.05.jpg (726 views, 1.00 MB)
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JohnH - 13 Years Ago
Wabba - 13 Years Ago
JohnH - 13 Years Ago
Matt (Staff) - 13 Years Ago
JohnH - 13 Years Ago
     Looking good!
Wabba - 13 Years Ago
JohnH - 13 Years Ago
Wabba - 13 Years Ago
JohnH - 13 Years Ago
Joe - 13 Years Ago
JohnH - 13 Years Ago
JohnH - 13 Years Ago
JohnH - 13 Years Ago
JohnH - 13 Years Ago
Rootz - 13 Years Ago
Joe - 13 Years Ago
JohnH - 13 Years Ago
JohnH - 13 Years Ago
Wabba - 13 Years Ago
JohnH - 13 Years Ago
             Hi John, Upload limit increased!
Paul (Staff) - 13 Years Ago
JohnH - 13 Years Ago
JohnH - 13 Years Ago
Joe - 13 Years Ago
JohnH - 13 Years Ago
             Good job and nice project ;)
matthieutje65 - 13 Years Ago
     Sweet ;)
Joe - 13 Years Ago
JohnH - 13 Years Ago
JohnH - 13 Years Ago
JohnH - 13 Years Ago
downforce - 13 Years Ago
JohnH - 12 Years Ago
HansenJC - 6 Years Ago
Lastcadet2185 - 11 Years Ago

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