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Search: Posts Made By: ibuild
Showing results 1 to 20 of 20
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Forum: Composites Fabrication And Repair
06-06-2017, 08:42 AM
Replies: 20
Views: 13,659
Posted By ibuild

So this is my wing spar basically finished. ...

So this is my wing spar basically finished.

I have not wrapped it yet and this is because I thought I wanted to install a small joiner pocket at the tip as well so that I can experiment with...
Forum: Composites Fabrication And Repair
06-04-2017, 01:25 PM
Replies: 20
Views: 13,659
Posted By ibuild

I have built together my wing spar, now all...

I have built together my wing spar, now all that's left is to wrap it.

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Forum: Composites Fabrication And Repair
06-02-2017, 12:47 PM
Replies: 20
Views: 13,659
Posted By ibuild

I have made ready the shearweb. I have sanded the...

I have made ready the shearweb. I have sanded the surface of the parts lightly with a bar sander to make them reasonable flat and smooth without taking away too much material and then washed with...
Forum: Composites Fabrication And Repair
05-30-2017, 10:17 AM
Replies: 20
Views: 13,659
Posted By ibuild

I have finished the spar joiner pockets... ...

I have finished the spar joiner pockets...

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Forum: Composites Fabrication And Repair
05-28-2017, 01:05 PM
Replies: 20
Views: 13,659
Posted By ibuild

I have joined the pocket parts. I have used epoxy...

I have joined the pocket parts. I have used epoxy glue with some fine milled carbon fibers mixed in to it, the spar joiner needs to be properly waxed before doing this. The trick is to let the epoxy...
Forum: Composites Fabrication And Repair
05-27-2017, 12:16 PM
Replies: 20
Views: 13,659
Posted By ibuild

The thin food packing foil could potentially trap...

The thin food packing foil could potentially trap air inside between them and prevent the laminate to be properly compressed around the joiner, it would be beneficial to have a piece of thin paper or...
Forum: Composites Fabrication And Repair
05-27-2017, 11:53 AM
Replies: 20
Views: 13,659
Posted By ibuild

The spar joiner pockets are often made by...

The spar joiner pockets are often made by wrapping fiberglass or carbon fiber around the joiner, I am however doing it differently because if you consider the joiner a long and narrow piece and that...
Forum: Composites Fabrication And Repair
05-27-2017, 09:11 AM
Replies: 20
Views: 13,659
Posted By ibuild

I am finally back at my project and I have made...

I am finally back at my project and I have made ready the spar joiner, now I can make the joiner box/pockets that goes outside it and that will become a part of the wing spar root.
...
Forum: Composites Fabrication And Repair
05-19-2017, 11:12 AM
Replies: 20
Views: 13,659
Posted By ibuild

I thought it would be good to do some explanation...

I thought it would be good to do some explanation and fill in some blind spots now that I have had a little break and have done some other things, leaning back and getting a little distance to it...
Forum: Composites Fabrication And Repair
05-14-2017, 06:57 AM
Replies: 20
Views: 13,659
Posted By ibuild

I have milled the top (actually the side) of the...

I have milled the top (actually the side) of the spar joiner pieces so that they are absolutely flat and consistent in thickness, they have now a thickness at about 1/8". A note of warning about...
Forum: Composites Fabrication And Repair
05-11-2017, 01:52 PM
Replies: 20
Views: 13,659
Posted By ibuild

Now I need to make the spar joiner. I will make...

Now I need to make the spar joiner.
I will make it solid in several vertically aligned pieces and mount them together, this way I don't risk that a delamination of the parts reduce it's actual...
Forum: Composites Fabrication And Repair
05-08-2017, 01:37 PM
Replies: 20
Views: 13,659
Posted By ibuild

The shearweb material is now ready to be cut in...

The shearweb material is now ready to be cut in narrow lengths to make the spar core, with a thin layer of fiberglass like this it is easy to cut with a break-blade knife or similar.
...
Forum: Composites Fabrication And Repair
05-06-2017, 04:46 PM
Replies: 20
Views: 13,659
Posted By ibuild

...

...
Forum: Composites Fabrication And Repair
05-06-2017, 03:11 PM
Replies: 20
Views: 13,659
Posted By ibuild

About the shear web I have already made what I...

About the shear web I have already made what I intended to use for this spar but it is essential and shows better what composite processing is all about than my rather special and improvised method...
Forum: Composites Fabrication And Repair
05-06-2017, 10:35 AM
Replies: 20
Views: 13,659
Posted By ibuild

It have been in the vacuum bag for 48hours now...

It have been in the vacuum bag for 48hours now and the last 24hours it have been between 35 to 40 degrees Celsius in my workshop so I have taken it out of the bag and I will just let it be for some...
Forum: Composites Fabrication And Repair
05-04-2017, 10:06 AM
Replies: 20
Views: 13,659
Posted By ibuild

I have plenty of epoxy in the mold before I add...

I have plenty of epoxy in the mold before I add the tows, then I apply a new coat of epoxy on top of every tow length. With the tows spread like I have it is easily saturated but if it is not...
Forum: Composites Fabrication And Repair
05-02-2017, 02:05 PM
Replies: 20
Views: 13,659
Posted By ibuild

To get the tow compressed down in to the mold I...

To get the tow compressed down in to the mold I have made some slices of high density foam, they act as sort of a piston and make sure that the surface of the tow becomes flat and consistent. I...
Forum: Composites Fabrication And Repair
05-01-2017, 12:52 PM
Replies: 20
Views: 13,659
Posted By ibuild

I have made some carriers for the lengths of...

I have made some carriers for the lengths of carbon tow, it will be become quite a few lengths when all is ready and some order in the chaos is necessary. I have limited space so I need to have these...
Forum: Composites Fabrication And Repair
05-01-2017, 09:55 AM
Replies: 20
Views: 13,659
Posted By ibuild

First to make is the sparcaps, I am using a mold...

First to make is the sparcaps, I am using a mold to make them and it's a quite simple mold. It can be made from MDF plates (typically wall and ceiling plates) or similar, then covered with tape to...
Forum: Composites Fabrication And Repair
05-01-2017, 08:15 AM
Replies: 20
Views: 13,659
Posted By ibuild

Making a Wing Spar

Here is a quote from the Wikipedia describing a wing spar:
"In a fixed-wing aircraft, the spar is often the main structural member of the wing, running spanwise at right angles (or thereabouts...
Showing results 1 to 20 of 20


 
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