handrail in carbon fiber

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handrail in carbon fiber

handrail in carbon fiber

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Thecydart	T Thecydart posted 5 Years Ago HOT Topic Details
T Group: Forum Members Posts: 14, Visits: 155	What is the best technique to mold these parts, and redo them in carbon? infusion? Prepreg? Dimensions: 700mm x 350mm Thank's a lot.
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handrail in carbon fiber

Thecydart - 5 Years Ago

For the mold, gel coat and fiberglass would work. As for the piece, if it has to be light and strong, prepreg of infusion, if it's just a cosmetic part, no subjected to any efforts, just wet layup.

Buchado - 5 Years Ago

Thank you very much, the pieces should be light and solid, but also cosmetic ... I'm thinking of opting for infusion, with 3D core ... and gluing the pieces with structural glue ... I strongly...

Thecydart - 5 Years Ago

Prepreg is the sure way to get an optimal fiber to resin ratio. It is possible to get nice parts with infusion (as nice as prepreg parts), but it's more of a trial and error process for every new...

Buchado - 5 Years Ago

Very easy to work out resin requirements for infusion, it's simply reinforcement weight ÷ 1.5, plus 700g/sqm for infusion mesh, and a 10% wastage factor. Have to account for various infusion cores; 3...

Hanaldo - 5 Years Ago

What about ooa prepreg?

Buchado - 5 Years Ago

I am referring to OOA pre-pregs, standard pre-pregs are a bit beyond the realms of most hobbyists haha.

Hanaldo - 5 Years Ago

I don't even know what it is ooa !!! 🧐

Thecydart - 5 Years Ago

Out of autoclave prepreg.

Buchado - 5 Years Ago

hello thank you very much for these details ... indeed there should only be two pieces ... so I will favor the infusion ;-) thank you very much for the resin ratio! awesome!!! thank you so much

Thecydart - 5 Years Ago

Besides, one last question remains. I will have to make the part in 2 parts, then glue them together. is it enough to stick the edges "edge to edge" or do I have to plan a trip? Knowing that I cannot...

Thecydart - 5 Years Ago

Just bonding edge to edge would likely not be the most secure method Some options include: Design both moulds so that they deliver two symmetrical halves, then look to bond some carbon strips on th...

MarkMK - 5 Years Ago

Great!!! thank you very much, that’s what I thought ... I’m looking for as much strength as possible. I will think of the mold as well ;-)

Thecydart - 5 Years Ago

Last question, before getting started ... I need it to be as solid as possible, how many layers of carbon fabrics do you recommend? 1 / 210g Plain Weave 3k Carbon Fiber (1st layer) 2 / 3mm 3D CORE PE...

Thecydart - 5 Years Ago

It's hard to say, because when you increase the number of layers, you increase the strength AND the weight, so there is this trade-off, and we can't really say the number of layers without knowing...

Buchado - 5 Years Ago

thank you, these are boat doors, currently they are made of wood covered with carbon, very very heavy ... so no weight problem, just as much resistance as possible for the hinges and handrail.Thank’s...

Thecydart - 5 Years Ago

Way too asymmetrical in my opinion. And if anything you need the heftier skin on the outside. Probably you will even see the white core shining though the weave.

SleepingAwake - 5 Years Ago

thank you, but I don't want to proceed as the original Parts ;-) I will make a mold (several parts) and make empty parts but as solid « hard » as possible ...

Thecydart - 5 Years Ago

I understand this.

SleepingAwake - 5 Years Ago

but with several folds of carbon fabrics? Shouldn't we see through?

Thecydart - 5 Years Ago

thw 210gsm fabric is the visible surface i assume?

SleepingAwake - 5 Years Ago

Yes, okay, I understand ;-) 1 / 210g Plain Weave 3k Carbon Fiber (1st layer) 2 / 300g / - 45 Biaxial 3k Carbon Fiber? 3 / 3mm 3D CORE PET 100 Foam 4/ 650g 2x2 Twill 12k Carbon Fibre ? 5 / 375g 5HS...

Thecydart - 5 Years Ago

If you want a strong door, I would make in one piece with plenty of fiber overlap where direction changes. I would also used a balanced and symmetric layup. The 3D core will not make those tight...

polaraligned - 5 Years Ago

Thank you, in one piece it is not possible? several layers yes, symmetrical yes, but how many? and what type?

Thecydart - 5 Years Ago

The 210g surface layer backed up with a 650g fabric will deliver a part with just under 1mm thickness and on something with narrow widths and angles like that it would feel quite sturdy. Add in an....

MarkMK - 5 Years Ago

thank you for all this precious information, I'm going to start from the top ;-) Besides, having no weight problem, can I put glass fabrics inside instead of carbon?

Thecydart - 5 Years Ago

Yes, you could also use a woven e-glass fabric You wouldn't get quite the same stiffness and strength from it, at a comparable weight, but if strength is needed you could always compromise on weight...

MarkMK - 5 Years Ago

yes it's true I'm going to go on bi-axial fiberglass, to increase thickness and lower the cost a little ...

Thecydart - 5 Years Ago

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