3D Printing - which process?

Nev Williams · 2006-06-22T22:31:24+00:00

I am just finishing a enclosure for a client that houses an electronic/pneumatic product. It's made of 3 parts and the next step is Rapid Prototyping of the model parts. I know there are quite a few here that have used this process and probably have valuable opinions that they wouldn't mind sharing.What sort of finish, structural integrity do the various 3D printers produce? There are quite a few of these machines around our way now, but it's difficult to get an objective opinion on pros and cons of each.Ideally I would be after RP that would take minimal finishing, to use as a pattern for investment casting and has a reasonable amount of strength. We would use these initial RP samples to fit internals of device and have the machine used by a limited number of people to get feedback.Can this be really be achieved with items produced by rapid prototype. I know all the advertising blurb says this is possible , but in the real world is this actually so.Initially the quantity would be quite low hence investment cast or similar process. If product starts selling in numbers, material would switch to plastic and injection molded dies would be required.Would much appreciate any input from those who have used the process.Cheers

Jun 22, 2006 21 Replies

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ken.maren 20 years ago

Not knowing the size or shape of you product I will offer a few suggestions. You mention castings. Depending on your part and the amount you plan to make, Urethane castings may work well. My suggestion is to go to

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. Out of 4 sources for this they are the least expensive and do the best quality work. Ask for Faye. She will get you to where you need to go. As for objet that people speak of, your system is an enclosure right? If you have any heat in that enclosure you need to be careful because the Objet melt point is very low. Like 110-120 degrees F. I use C-Ideas for this

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. They also have FDM and SLA machines as well and will be happy to give you all their wisdom. Ask for Dan. Those two sources are the best I have and they know all. Call and pick their brain. Thats the best advice I can give.

Ken M Muderlak Design

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