ATGNI
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I have a small traditional CNC machine see video link at the bottom. I would like to try routing and drilling printed circuit boards but the maximum spindle speed is only 2500 so this would be very slow for micro drilling and router V bits. I was wondering what would be the easiest way to add a high speed spindle. My first thought is to buy a high speed electric motor and fit a R8 shank to the back of the motor. Alternatively I could buy a R8 tool shank drill the end out, and fit a bearing and pully and collet chuck. I could run this from a separate electric motor clamp to the head stock.
I am thinking fixing the motor directly to the R8 tool shank would be easier. This would make the stick out from the spindle rather long but probably no longer than having the spindle fully extended. I was worried this greater turning moment would put more load on the spindle bearing but given the size of the tools I cannot see this being a problem.
Has anyone done this and can share any pictures or thoughts on doing this.
Thanks Chris
I am thinking fixing the motor directly to the R8 tool shank would be easier. This would make the stick out from the spindle rather long but probably no longer than having the spindle fully extended. I was worried this greater turning moment would put more load on the spindle bearing but given the size of the tools I cannot see this being a problem.
Has anyone done this and can share any pictures or thoughts on doing this.
Thanks Chris