How to get a CAD drawing machined?

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Discussion Overview

The discussion revolves around the process of getting a stator and rotor manufactured from CAD drawings for a motor project. Participants explore methods for machining components, particularly focusing on small-scale production and the use of electrical steel.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested, Homework-related

Main Points Raised

  • One participant inquires about the feasibility of having a stator manufactured from a CAD drawing, expressing concerns about the availability of services for small orders.
  • Another participant suggests that while the normal process for making laminations is punching, the high tooling costs make profile cutting via plasma, waterjet, or laser cutting a potentially cheaper alternative for short runs, emphasizing the need to provide a DXF file.
  • A third participant provides a link to a machining service, indicating a resource for obtaining parts.
  • One participant advises contacting local machine shops for quotes, highlighting the importance of specifying tolerances, materials, and finishes required for the project.
  • Another participant shares personal experience with laser cutting small parts, noting the accuracy achieved that may eliminate the need for further machining, and asks for the original poster's location to provide more tailored advice.

Areas of Agreement / Disagreement

Participants generally agree on the need to contact local machine shops and explore various cutting methods, but there is no consensus on the best approach for small-scale manufacturing or the specific services available.

Contextual Notes

Participants mention the potential need to source materials independently and the importance of providing specific technical details to machine shops, indicating that assumptions about service availability and capabilities may vary by location.

Who May Find This Useful

Individuals interested in small-scale manufacturing, hobbyists working on motor projects, and those seeking to understand the machining process for custom parts may find this discussion relevant.

fahraynk
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Hi. I am trying to figure out how to get a stator and rotor manufactured for a motor I am building as a learning project. Anyone have any clue how I can get a stator manufactured from a cad drawing with electrical steel ?

Everything I see on the net is for large orders sigh. I have never done this before so I figured id ask for help. Am I going to have to make the stator myself or is it easy to find someone to machine it?
 
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the normal process to make the laminations is punching but tooling costs for punching are high. For a very short run profile cutting is probably cheaper, call around your local firms that do plasma/waterjet/laser cutting and get some quotes. Generally you just need to provide a dxf. You may have to source the steel yourself as they probably won't stock it.
 
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Just contact a local machine shop and ask for a quote. You'll need to know what sort of tolerance you need and what materials and finish you want.
 
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@fahraynk - I regularly get small parts laser cut which are so accurate for size that they need no further machining .

Which country are you in ?
 

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