There is the optimum rotating speed for the toolsTools have their own optimum speed of rotation and processing that the tool manufacturer recommends.
For instance, 90 degrees end mills, it is 30,000 rpm and 15mm/sec.
Higher rotation speed shortens the longevity of the tools and higher processing speed makes the tools fragile.
The optimum rotating speed and the optimum processing speed vary depending on the tools and the substrate board.
The finishes of the processing is better when the rotating speed is lower than higher depending on the processing material as reported by the case example by The University of Tokyo.
ConclusionIn PCB prototyping machine, from the above, machine installed with high revolutions spindle motor will be expensive, however it does not mean the performance will be superior. Please select your machine deliberately with its cost-effectiveness.
50µm(2mil) line and space, the state of the art!
Stepping method and non-contacting pressure foot lead to the fine processing technology
MITS PCB prototyping machines are suitable not only for typical PCB prototyping but also for fine processing of various types of materials.
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