Amerigo

What we source

CNC machining

Amerigo sources CNC machining from American machine shops. Send a drawing or STEP file and we route it to a few machine shops built for that part. They mill and turn parts to your drawing: housings, shafts, fixtures, brackets, and full part packages for a machine build, from a one-off to a production run. Each shop that quotes sends back its own name, price and ready date, and you pay one price through Amerigo.

Send a drawing

About cnc machining

CNC machining removes material from bar, plate or casting to reach the drawing: 3-axis and 5-axis milling for prismatic parts, CNC turning for round parts, and mill-turn for parts that need both. Tolerances, threads and surface-finish callouts are the things to state plainly on the drawing, because they decide the process and the price.

Common materials are 6061 and 7075 aluminum, 1018 and 4140 steel, 303 and 304 stainless, brass, and engineering plastics such as Delrin and UHMW. Buyers building equipment often send a package of many part numbers at once; a shop can quote the package as a whole and tell you which parts drive the cost.

What a shop needs to quote: a PDF drawing per part with material, tolerances and finish, a STEP file for anything with contoured surfaces, the quantity per part number, and whether any parts are needed ahead of the rest.

Questions buyers ask

Can I get a quote for a one-off machined part?
Yes. Many machine shops take one-offs and short runs as their normal work. The first part carries setup and programming, so if you will reorder, ask for prices at more than one quantity on the same request.
Can I send a whole parts package?
Yes. Send every drawing and STEP file in one request. Shops quote the package and can flag any part that is better made elsewhere, for instance a sheet metal part inside a machining package.
What tolerances will the shop hold?
The ones on your drawing. Put tolerances, thread callouts and surface finish on the drawing rather than in an email; the shop quotes to what is drawn. A tight tolerance on a feature that does not need it raises the price.
Do I need to supply the material?
No. The shop sources material and includes it in the quote unless the quote says otherwise. If you need a specific mill cert or supplier, say so on the request.
How long does a job take?
Each quote states the manufacturer's own lead time. It depends on the part, the material and the shop's load, so Amerigo does not publish a standard lead time. If you have a date you must hit, put it on the request.