Hi all,
I am trying to mill a PCB board using the Zen Toolworks CNC machine that I have bought and assembled. One glitch: I cannot find end mills that are fine enough (8 mil) to etch critical traces.
The bottleneck right now is the MCP73838 chip, whose pads are ~8 mil (0.2 mm) apart. I have a 20 mil (0.5 mm) end mill that will work well for the rest of the board, where size is less strict, but it will not work for the chip. I cannot find 8 mil end mills which are quick shipping/locally (I'm in Brooklyn), and I do not want to bring the board to a fab house because 1) we are in the prototyping phase and 2) I just bought a mill for this exact purpose. Also, it is relatively time sensitive :/
So, is there any way/tools that will allow me to do the 8 mil isolation traces by hand? For example, some X-acto blades are thin enough to do the 8 mil job.
Thanks!
I am trying to mill a PCB board using the Zen Toolworks CNC machine that I have bought and assembled. One glitch: I cannot find end mills that are fine enough (8 mil) to etch critical traces.
The bottleneck right now is the MCP73838 chip, whose pads are ~8 mil (0.2 mm) apart. I have a 20 mil (0.5 mm) end mill that will work well for the rest of the board, where size is less strict, but it will not work for the chip. I cannot find 8 mil end mills which are quick shipping/locally (I'm in Brooklyn), and I do not want to bring the board to a fab house because 1) we are in the prototyping phase and 2) I just bought a mill for this exact purpose. Also, it is relatively time sensitive :/
So, is there any way/tools that will allow me to do the 8 mil isolation traces by hand? For example, some X-acto blades are thin enough to do the 8 mil job.
Thanks!