10 Years manufacturer lathe cnc parts for Ottawa Manufacturers

10 Years manufacturer
 lathe cnc parts for Ottawa Manufacturers

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  • First run of the machine for a very very long time due to lack of spare time.
    The machine is run on a 12VDC PS from an old PC, drivers are chinese cheapos based on TB6560 with a modified start-up/shut-down circuit that I’ve designed and some minor wiring changes to the chinese PCB’s. Run from an old Pentium4 PC using LinuxCNC. All motors are Lin Eng Nema23 motors.

    The final result of the board after etching and drilling can be seen here:


    Overall it came out alright, but there are still issues in the PCB-to-gcode software that I need to solve for it to be perfect.
    I’m also not fully satisfied with the alignment of the drill and the copper layers. The error is no more than 0.125mm (5mil) – that’s at least what I can see with my microscope. I’ve had commercially fabricated PCB’s with alignment of this order of magnitude, but I would still like to improve that.
    Here’s a close-up with the microscope:


    One more thing to do: buy a set of drill’s for the Dremel. This time I’ve used 0.8mm drill bit for all holes (0.8mm is the only one I have), so I must now increase the diameter of some holes on my drill press – easily done, but a waste of time.

    The “etch” speed in the video is 200mm/min – using a 0.2mm V-shaped bit I don’t think I should go any faster. Jog is limited in the software to 720mm/min.

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