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Iansr
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Group: Forum Members
Posts: 5,
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Hi, I’m looking for some advice and guidance. I want to make a hollow egg shape out of carbon fibre. My idea is to use a balloon as a basis for creating the mould. My initial idea was to first coat the balloon in paper mache clay (paper, PVA and gypsum ) to create a hard egg shape and then cover that with fibre glass to reinforce it. A better alternative would be use a product called StyroSpray 1000 instead of the paper mache clay as I think it would produce a smoother inner surface. I would then create a 2 part mould by cutting the egg into 2 symmetrical halves and applying gel coat to the inner surfaces. I could then lay carbon fibre into the 2 halves separately and subsequently join the the 2 halves with epoxy. I’d welcome any comments on this proposed method. Is there a better way of doing it? Would I be better using the hard egg shape created by the StyroSpray to create a silicone mould for example? All comments and guidance welcomed.
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Buchado
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Group: Forum Members
Posts: 30,
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+xHi, I’m looking for some advice and guidance. I want to make a hollow egg shape out of carbon fibre. My idea is to use a balloon as a basis for creating the mould. My initial idea was to first coat the balloon in paper mache clay (paper, PVA and gypsum ) to create a hard egg shape and then cover that with fibre glass to reinforce it. A better alternative would be use a product called StyroSpray 1000 instead of the paper mache clay as I think it would produce a smoother inner surface. I would then create a 2 part mould by cutting the egg into 2 symmetrical halves and applying gel coat to the inner surfaces. I could then lay carbon fibre into the 2 halves separately and subsequently join the the 2 halves with epoxy. I’d welcome any comments on this proposed method. Is there a better way of doing it? Would I be better using the hard egg shape created by the StyroSpray to create a silicone mould for example? All comments and guidance welcomed. Most mold making products are just going to replicate the surface finish of your plug. If you want the halves to have a perfect match at the contact area, your idea of cutting it in two halves will hardly work (you remove material and cutting, and mess up the surface) For a good split mold, you must make one half first, them with this half still in place, make the other half, this way they will be a perfect fit when you put them together, because whatever product you use to make the mold will fill all imperfections where the first half meets the second. EasyComposites has a great split mold making tutorial on youtube, take a loot at it and you will see what I'm talking about. Why apply gel coat to the inner surface after the mold is created? Gel coat is usually used first, to replicate the surface of the plug, and then the fiberglass goes on the gel coat to reinforce the mold.
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Iansr
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Group: Forum Members
Posts: 5,
Visits: 29
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+x+xHi, I’m looking for some advice and guidance. I want to make a hollow egg shape out of carbon fibre. My idea is to use a balloon as a basis for creating the mould. My initial idea was to first coat the balloon in paper mache clay (paper, PVA and gypsum ) to create a hard egg shape and then cover that with fibre glass to reinforce it. A better alternative would be use a product called StyroSpray 1000 instead of the paper mache clay as I think it would produce a smoother inner surface. I would then create a 2 part mould by cutting the egg into 2 symmetrical halves and applying gel coat to the inner surfaces. I could then lay carbon fibre into the 2 halves separately and subsequently join the the 2 halves with epoxy. I’d welcome any comments on this proposed method. Is there a better way of doing it? Would I be better using the hard egg shape created by the StyroSpray to create a silicone mould for example? All comments and guidance welcomed. Most mold making products are just going to replicate the surface finish of your plug. If you want the halves to have a perfect match at the contact area, your idea of cutting it in two halves will hardly work (you remove material and cutting, and mess up the surface) For a good split mold, you must make one half first, them with this half still in place, make the other half, this way they will be a perfect fit when you put them together, because whatever product you use to make the mold will fill all imperfections where the first half meets the second. EasyComposites has a great split mold making tutorial on youtube, take a loot at it and you will see what I'm talking about. Why apply gel coat to the inner surface after the mold is created? Gel coat is usually used first, to replicate the surface of the plug, and then the fiberglass goes on the gel coat to reinforce the mold. OK thanks. So I’ve concluded that I need to make a pattern of the egg, then use that to make a 2 part mould. However I won’t be able to then use prepreg in the mould as I don’t have a suitable oven. In the video it shows that when using prepreg you create a flap which joins the parts together. My question is how do you join the (in my case) 2 parts together if you doing a standard layup of the carbon fibre rather than prepreg?
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Buchado
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Group: Forum Members
Posts: 30,
Visits: 208
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+x+x+xHi, I’m looking for some advice and guidance. I want to make a hollow egg shape out of carbon fibre. My idea is to use a balloon as a basis for creating the mould. My initial idea was to first coat the balloon in paper mache clay (paper, PVA and gypsum ) to create a hard egg shape and then cover that with fibre glass to reinforce it. A better alternative would be use a product called StyroSpray 1000 instead of the paper mache clay as I think it would produce a smoother inner surface. I would then create a 2 part mould by cutting the egg into 2 symmetrical halves and applying gel coat to the inner surfaces. I could then lay carbon fibre into the 2 halves separately and subsequently join the the 2 halves with epoxy. I’d welcome any comments on this proposed method. Is there a better way of doing it? Would I be better using the hard egg shape created by the StyroSpray to create a silicone mould for example? All comments and guidance welcomed. Most mold making products are just going to replicate the surface finish of your plug. If you want the halves to have a perfect match at the contact area, your idea of cutting it in two halves will hardly work (you remove material and cutting, and mess up the surface) For a good split mold, you must make one half first, them with this half still in place, make the other half, this way they will be a perfect fit when you put them together, because whatever product you use to make the mold will fill all imperfections where the first half meets the second. EasyComposites has a great split mold making tutorial on youtube, take a loot at it and you will see what I'm talking about. Why apply gel coat to the inner surface after the mold is created? Gel coat is usually used first, to replicate the surface of the plug, and then the fiberglass goes on the gel coat to reinforce the mold. OK thanks. So I’ve concluded that I need to make a pattern of the egg, then use that to make a 2 part mould. However I won’t be able to then use prepreg in the mould as I don’t have a suitable oven. In the video it shows that when using prepreg you create a flap which joins the parts together. My question is how do you join the (in my case) 2 parts together if you doing a standard layup of the carbon fibre rather than prepreg? Maybe you watched the wrong video, I was talking about the split mould making tutorial video. Whether you will use prepreg or wet lay up, I don't think it matters much. The carbon fiber will go on the inner or outer side of the mold? Do you need the egg to be a specific size, controlled dimensions?
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Iansr
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Group: Forum Members
Posts: 5,
Visits: 29
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+x+x+x+xHi, I’m looking for some advice and guidance. I want to make a hollow egg shape out of carbon fibre. My idea is to use a balloon as a basis for creating the mould. My initial idea was to first coat the balloon in paper mache clay (paper, PVA and gypsum ) to create a hard egg shape and then cover that with fibre glass to reinforce it. A better alternative would be use a product called StyroSpray 1000 instead of the paper mache clay as I think it would produce a smoother inner surface. I would then create a 2 part mould by cutting the egg into 2 symmetrical halves and applying gel coat to the inner surfaces. I could then lay carbon fibre into the 2 halves separately and subsequently join the the 2 halves with epoxy. I’d welcome any comments on this proposed method. Is there a better way of doing it? Would I be better using the hard egg shape created by the StyroSpray to create a silicone mould for example? All comments and guidance welcomed. Most mold making products are just going to replicate the surface finish of your plug. If you want the halves to have a perfect match at the contact area, your idea of cutting it in two halves will hardly work (you remove material and cutting, and mess up the surface) For a good split mold, you must make one half first, them with this half still in place, make the other half, this way they will be a perfect fit when you put them together, because whatever product you use to make the mold will fill all imperfections where the first half meets the second. EasyComposites has a great split mold making tutorial on youtube, take a loot at it and you will see what I'm talking about. Why apply gel coat to the inner surface after the mold is created? Gel coat is usually used first, to replicate the surface of the plug, and then the fiberglass goes on the gel coat to reinforce the mold. OK thanks. So I’ve concluded that I need to make a pattern of the egg, then use that to make a 2 part mould. However I won’t be able to then use prepreg in the mould as I don’t have a suitable oven. In the video it shows that when using prepreg you create a flap which joins the parts together. My question is how do you join the (in my case) 2 parts together if you doing a standard layup of the carbon fibre rather than prepreg? Maybe you watched the wrong video, I was talking about the split mould making tutorial video. Whether you will use prepreg or wet lay up, I don't think it matters much. The carbon fiber will go on the inner or outer side of the mold? Do you need the egg to be a specific size, controlled dimensions? I watched the 3 part video about making the air box. Haven’t found another one. Based on that video the CF would go on the inside, but if there is an easier way by using an internal mould then that’s fine by me. Precise dimensions are not crucial but it needs to be about 30cm at its widest and about 40cm tall.
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Buchado
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Group: Forum Members
Posts: 30,
Visits: 208
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+x+x+x+x+xHi, I’m looking for some advice and guidance. I want to make a hollow egg shape out of carbon fibre. My idea is to use a balloon as a basis for creating the mould. My initial idea was to first coat the balloon in paper mache clay (paper, PVA and gypsum ) to create a hard egg shape and then cover that with fibre glass to reinforce it. A better alternative would be use a product called StyroSpray 1000 instead of the paper mache clay as I think it would produce a smoother inner surface. I would then create a 2 part mould by cutting the egg into 2 symmetrical halves and applying gel coat to the inner surfaces. I could then lay carbon fibre into the 2 halves separately and subsequently join the the 2 halves with epoxy. I’d welcome any comments on this proposed method. Is there a better way of doing it? Would I be better using the hard egg shape created by the StyroSpray to create a silicone mould for example? All comments and guidance welcomed. Most mold making products are just going to replicate the surface finish of your plug. If you want the halves to have a perfect match at the contact area, your idea of cutting it in two halves will hardly work (you remove material and cutting, and mess up the surface) For a good split mold, you must make one half first, them with this half still in place, make the other half, this way they will be a perfect fit when you put them together, because whatever product you use to make the mold will fill all imperfections where the first half meets the second. EasyComposites has a great split mold making tutorial on youtube, take a loot at it and you will see what I'm talking about. Why apply gel coat to the inner surface after the mold is created? Gel coat is usually used first, to replicate the surface of the plug, and then the fiberglass goes on the gel coat to reinforce the mold. OK thanks. So I’ve concluded that I need to make a pattern of the egg, then use that to make a 2 part mould. However I won’t be able to then use prepreg in the mould as I don’t have a suitable oven. In the video it shows that when using prepreg you create a flap which joins the parts together. My question is how do you join the (in my case) 2 parts together if you doing a standard layup of the carbon fibre rather than prepreg? Maybe you watched the wrong video, I was talking about the split mould making tutorial video. Whether you will use prepreg or wet lay up, I don't think it matters much. The carbon fiber will go on the inner or outer side of the mold? Do you need the egg to be a specific size, controlled dimensions? I watched the 3 part video about making the air box. Haven’t found another one. Based on that video the CF would go on the inside, but if there is an easier way by using an internal mould then that’s fine by me. Precise dimensions are not crucial but it needs to be about 30cm at its widest and about 40cm tall. Oh, you watched all 3 videos, ok. About the question on your other post, you can overlap the fibers with wet lay up just as you can with prepreg, just put uma layer, some resin, then another layer. About the egg you wanna make, you can bladder mold it, putting the fiber inside the mold.
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Kathhi Palaksha Reddy
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Group: Forum Members
Posts: 2,
Visits: 21
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+xHi, I’m looking for some advice and guidance. I want to make a hollow egg shape out of carbon fibre. My idea is to use a balloon as a basis for creating the mould. My initial idea was to first coat the balloon in paper mache clay (paper, PVA and gypsum ) to create a hard egg shape and then cover that with fibre glass to reinforce it. A better alternative would be use a product called StyroSpray 1000 instead of the paper mache clay as I think it would produce a smoother inner surface. I would then create a 2 part mould by cutting the egg into 2 symmetrical halves and applying gel coat to the inner surfaces. I could then lay carbon fibre into the 2 halves separately and subsequently join the the 2 halves with epoxy. I’d welcome any comments on this proposed method. Is there a better way of doing it? Would I be better using the hard egg shape created by the StyroSpray to create a silicone mould for example? All comments and guidance welcomed. Hello Iansr ji How about rotary blow moulding technique used for making water tanks?
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