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General Mach Discussion / DIY oscillating tangential knife cutter.
« on: May 06, 2010, 03:27:26 PM »
Hi,
I am new to CNC and was hoping to build a Solsylva rack & pinion 36" x 48" machine for cutting museumboard, chipboard and corrugated cardboard for architectural models. As these are all paper products that don't machine well, this calls either for an oscillating knife or an ultrasonic knife. For the oscillating option I was thinking of using a power chisel style handheld wood carver. These have a 3000 - 4000 oscillations / min frequency and a stroke between 0.5 - 1 mm. If this doesn't work my second option was to adapt a handheld ultrasonic cutter if I can find one in the 300 - 400$ range.
If anyone can bring any experience with this sort of build to the table and give me any pointers I might need, I would be most grateful. Especially concerning actually mounting and controlling whichever knife i wind up choosing. What kind of motor do I need for the c-axis and how do i go about turning the actual knife ?
Thanks
JF
I am new to CNC and was hoping to build a Solsylva rack & pinion 36" x 48" machine for cutting museumboard, chipboard and corrugated cardboard for architectural models. As these are all paper products that don't machine well, this calls either for an oscillating knife or an ultrasonic knife. For the oscillating option I was thinking of using a power chisel style handheld wood carver. These have a 3000 - 4000 oscillations / min frequency and a stroke between 0.5 - 1 mm. If this doesn't work my second option was to adapt a handheld ultrasonic cutter if I can find one in the 300 - 400$ range.
If anyone can bring any experience with this sort of build to the table and give me any pointers I might need, I would be most grateful. Especially concerning actually mounting and controlling whichever knife i wind up choosing. What kind of motor do I need for the c-axis and how do i go about turning the actual knife ?
Thanks
JF