Sal,
I am guessing that you are doing this as part of a school project. I am also guessing that a great deal of precision may be needed. I am also guessing that you are near a large American city. Your question is very broad and I am just guessing or making an educated assumption. So here goes:
- Do you know how to make a drawing with SW to ASME specs. that would communicate unambiguously to a machine shop what it is you want to make? If you can answer this question then you are about 1/4 of the way there.
- Further, if you model the part in SolidWorks or another CAD program, are you certain the part will fit up with other parts and generally function as it is intended to? If you can answer this question you are halfway there.
- Once you have done 1 & 2 you will have the answer to 5 and be ready to find the answer to 2. The next step is to take the drawings from step 1 to a machine shop that you can find by searching the yellow pages
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etc.) and ask them to quote the parts.
- In order for any machine shop to quote the parts you will need to convince them you can pay for the parts. Machine shops are not cheap nor will they give you the time of day unless they think you are bringing in business. If you really are doing this as a school project you might consider approaching the machine shop through the school. Machine shops generally don't work with individuals who walk in off the street. I recently worked on a project with a lot of custom made parts. The cheapest was probably 0 and it went up from there to the ,000 range.
Several things you don't want to ask a machine shop:
What are your rates? Ask for a quote instead. That is what you are after. After all they know how long it will take and what they need to charge.
What material to make it out of? If you don't know that, the machine shop certainly won't.