Hi Alumweld - You need to think about what you want to do. You need to have a specification for what you want to do then the decision is made.The machine will do it or not. To answer your questions. 1) Yes its an excellent starter machine you will learn alot and it may or may not do what you want 2) adding more wheels does not improve the performance of the device. I've looked at many of these things and generally the ones with more then 3 or 4 wheels have wheels that are not working. At this quality level the extrusions, the eccentrics, the wheels etc its not possible to adjust everything so all wheels contact. Even if they did the middle ones would not be doing anything. Why do motor cars only have 4 wheels? same question and answer. My suggestion is that you will build a far better machine in plywood then the ones discussed and it will be cheaper.... if you want to understand the issues in designing a machine and what it has to do read the Maximus thread. It starts from scratch and works through most design issues. Cheers Peter

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