CNC machining of a cup

How to machine a cup with a 3 axis CNC machine?

Well, one of the first things you will need is the CAD data. This needs to be drawn with minimal undercuts. Parametric design is ideal here to be able to use different proportions: say you want to start with a cup, then move to a shot glass or a bowl for soup.

Second is a system to be able to align the features exactly to the same place when flipping it into different directions on your CNC.

Third when machining the item you want to make sure that you do not cut it loose: you will need to either have a tool path generator that will automatically do support structure, a CAD package that will do it for you or manually draw it yourself.

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A Community Interest

C4AD was registered as a Private company limited by guarantee without share capital Community Interest Company (CIC). In short: not for profit and asset locked. The company's activities will provide benefit to those living in the South West London area and beyond with the use of Science, Technology, Engineering, Arts and Maths. STEM needs Arts to be successful so at C4AD S.T.E.A.M. is promoted: the aim is to demystify STEAM. The company is no more, but the activities continue as a free time activity!