3D printing patterns/moulds

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3D printing patterns/moulds

Author	Message
67redrocket	67redrocket posted 10 Years Ago HOT Topic Details
Group: Forum Members Posts: 49, Visits: 486	I have used www.shapeways.com for 3d printing a couple of times. And I wonder if I can use this to print patterns or moulds. Does anyone have experience with printing patterns/moulds? The material shapeways use is called PA 2200 https://www.shapeways.com/rrstatic/material_docs/mds-strongflex.pdf
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worthidlj	worthidlj posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 13, Visits: 1.2K	The issue with 3D printed parts is they are NOT sealed surfaces (even the SLS, SLA, DLP variants). The way to get around this is to coat the surface/ soak the part (in a sealable bag if part is small enough) with epoxy and sand smooth then I think from there it is the usual moulding process. This is my understanding of it, but happily to be corrected. Cheers, David
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scottracing	scottracing posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 460, Visits: 5.2K	its an application that im looking into at work. I have used sls nylon before but we had to seal the tools after we had wet sanded them smooth. I know many companies and motorsport especially are looking into it, if things progress as work I will give an update on the materials used and what needa to be done post process
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f1rob	f1rob posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 237, Visits: 4.8K	Just coat with marbokote 2002 as you would tooling block then release with whatever can also use 712
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Bean Bandit	Bean Bandit posted 9 Years Ago HOT Post Details
Group: Forum Members Posts: 10, Visits: 136	Hi everyone, I'm very much at the beginning of making composite parts and have just ordered some materials. I want to make some airhorns/stacks for my car and planed to get the mould 3D printed out of ABS (Tg around 120°C) and then seal it with a thin layer of high temp epoxy. I bought some braided cf sleeves (in combination with high temp epoxy) and will try how that works first but also got some prepreg (hence the goal to make a mould which can take 100°C or more). Is there anything I'm missing that would speak against my above mentioned plan (incompatability of resins, chemical reactions etc)? If there aren't any objections I'll give it a go later this summer/early autumn. Currently temps are too high (30°C or more in my working area). Thanks for any input. Bean
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