Last night, I managed to get the tachometer programming and circuit all figured out. Before I knew it, I had the schematic and then the board laid-out.
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| Tachometer Schematic |
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| Tachometer Board Lay-Out |
After about two hours of playing around with the schematic and moving the components around on the board, I decided I was done. I then placed an order with
BatchPCB. This board is 1.17x1.54 inches, and cost $4.51 each with a $10 handling fee.
I also placed an order with
Digi-Key which contained the gear tooth sensor which will be mounted within the gear box of the mini mill. That order is below.
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| Digi-Key Order |
