Hi from North Norfolk UK

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Hi from North Norfolk UK

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fusionfanatic	fusionfanatic posted 11 Years Ago HOT Topic Details
Group: Forum Members Posts: 6, Visits: 23	Hi, I want to start making parts using Carbon and Kevlar. Initial requirement is for a duct. I am contemplating a 3D printed investment mould using ABS or PLA. I have seen it is possible but cannot find any videos showing the process. The parts will not be massive, perhaps 500mm cube. I would like to be able to start on a relatively low budget so anyone with existing facilities who would be able to help out in the locality I would appreciate it. Charlie
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ChrisR	ChrisR posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 363, Visits: 3K	Yes, I was a little rushed earlier to expand on my original post. You shouldn't need an autoclave, if you want to melt away the sacrificial former then you just need an oven. Autoclaves are stupidly expensive and out of reach unless you know someone's you can use. In addition the added pressure during the curing process (the only reason you need an autoclave) may deform the part if the former melts before the resin cures enough. I'm not 100% on the part you intend to make but if I were making a duct that small and were intent on using a 3d printer to create the original part I would take a mould of that (2 part) then use an expanding foam (which would dissolve in acetone) to create the sacrificial former then wrap that using tape/fabric, wrap that in shrink tape, cook it then dissolve the foam after. That way you can create as may from the master mould as you want
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fusionfanatic	fusionfanatic posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 6, Visits: 23	ChrisR (07/11/2014) Yes, I was a little rushed earlier to expand on my original post. You shouldn't need an autoclave, if you want to melt away the sacrificial former then you just need an oven. Autoclaves are stupidly expensive and out of reach unless you know someone's you can use. In addition the added pressure during the curing process (the only reason you need an autoclave) may deform the part if the former melts before the resin cures enough. I'm not 100% on the part you intend to make but if I were making a duct that small and were intent on using a 3d printer to create the original part I would take a mould of that (2 part) then use an expanding foam (which would dissolve in acetone) to create the sacrificial former then wrap that using tape/fabric, wrap that in shrink tape, cook it then dissolve the foam after. That way you can create as may from the master mould as you want That's exactly the kind of advice I am looking for, thanks for enlarging on it. I like the idea of the expanding foam. Any suggestion on a product? It would likely need to he a 3 way split mould but that doesn't make much difference. I have watched a couple of the tutorial playlists on YouTube. The oven in the air box one, how much would that cost?
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Hi from North Norfolk UK

fusionfanatic - 11 Years Ago

Hi Charlie and welcome. Surface finish and getting a good release can be issues with 3D printed...

wozza - 11 Years Ago

[quote][b]wozza (07/11/2014)[/b][hr]Hi Charlie and welcome. Surface finish and getting a good...

fusionfanatic - 11 Years Ago

why do you think you need an autoclave?

ChrisR - 11 Years Ago

well look I am new to this, I watched a video promoting Stratsys 3D printer and during the...

fusionfanatic - 11 Years Ago

[quote][b]fusionfanatic (07/11/2014)[/b][hr]well look I am new to this, I watched a video promoting...

wozza - 11 Years Ago

Yes, I was a little rushed earlier to expand on my original post. You shouldn't need an autoclave,...

ChrisR - 11 Years Ago

[quote][b]ChrisR (07/11/2014)[/b][hr]Yes, I was a little rushed earlier to expand on my original...

fusionfanatic - 11 Years Ago

Where abouts are you ? got a fair amount of kit inc vac pumps/small oven an can get access to...

f1rob - 11 Years Ago

[quote][b]f1rob (07/11/2014)[/b][hr]Where abouts are you ? got a fair amount of kit inc vac...

fusionfanatic - 11 Years Ago

[quote][b]f1rob (07/11/2014)[/b][hr]Where abouts are you ? got a fair amount of kit inc vac...

fusionfanatic - 11 Years Ago

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