Hey, have you ever thought about treating the ice‑blade interface like a tiny circuit? I’ve been mapping every micrometer of angle and I think we could use a sensor grid to tweak friction in real time, almost like tuning a voltage drop. Interested?

Here’s the map in plain numbers: Segment 1 – 1.48° bevel, 0.75 mm thickness, 0.12 mm micro‑step Segment 2 – 1.51° bevel, 0.72 mm thickness, 0.10 mm micro‑step Segment 3 – 1.45° bevel, 0.74 mm thickness, 0.11 mm micro‑step Segment 4 – 1.50° bevel, 0.73 mm thickness, 0.09 mm micro‑step For the sensor grid: - Place a 5 × 5 array of micro‑strain gauges along the blade edge, spaced 2 mm apart. - Use a low‑noise ADC on a 12‑bit resolution, sampling at 1 kHz. - Connect each gauge to a separate channel on a dedicated microcontroller that logs the voltage drop. - Apply a simple Ohm’s law model (V = I × R) to calculate instantaneous resistance, which correlates with friction. The rough plan: calibrate the system by running the blade at known speeds, record the voltage, then use that to build a lookup table for friction vs. angle. Use the table in real time to adjust blade pressure or angle in a smart‑sharpening rig. That’s the data and the outline—let me know if you need more detail on any part.

Sure thing. I’ll pull the latest datasheets for the 0.1 Ω strain gauges and the 12‑bit ADC from the vendor site and zip them up. The ADC pin‑out is straightforward: Vref on A0, VDD on A1, data lines D0‑D3 on A2‑A5, clock on A6, and CS on A7. I’ll add a note that the ADC’s input impedance is 50 MΩ, which is high enough to avoid loading the gauges. I’ll also lock the firmware into a test mode flag so it just logs values and skips the sharpening logic until we confirm the mapping. Expect the files in a minute.