deploy webservice static-file routing for docsite folder URLs, per-instance step-cache db, and constant-height panel title bars.

App/wwwroot/HiAPI-docsite/manual/analysis/machinability.html

@@ -103,6 +103,12 @@ For the underlying boundary curves and how each ratio's denominator is computed
 <p><strong>Tool Breakage Solutions</strong></p>
 <p>Modify the toolpath to reduce cutting width/depth, or use HiNC's optimization feature to adjust feed rates, bringing the <strong>Yielding Stress Ratio</strong>, <strong>Max Spindle Torque Ratio</strong>, and <strong>Max Spindle Power Ratio</strong> below 100%.</p>
 </div>
+<h2 id="ripple-on-curved-and-tilted-cuts-mesh-quantization">Ripple on Curved and Tilted Cuts (Mesh Quantization)</h2>
+<p>On a nominally constant-engagement cut that is <strong>curved or tilted</strong> — arc or helical hole milling, ramping, or 5-axis moves — the <strong>Yielding Stress Ratio</strong> (and the underlying <a class="xref" href="../../api/Hi.MachiningSteps.MachiningStep.html#Hi_MachiningSteps_MachiningStep_MaxAbsForce_N">MaxAbsForce_N</a><small>(API)</small>) can show a small step-to-step ripple even though the theoretical engagement is steady. This is a discretization artifact, not a bug.</p>
+<p><strong>Cause.</strong> The workpiece is represented by an axis-aligned cubic voxel mesh (see <a href="../../workflows/basic-simulation.html#31-workpiece-entity-resolution">Workpiece Entity Resolution</a>). Orthogonal cubes cannot represent a circle or an inclined face smoothly, so the removed volume and the contact engagement area quantize against the grid from step to step. That quantization shows up as ripple in the per-step peak force, and therefore in the ratio.</p>
+<p><strong>What helps.</strong> A <strong>finer</strong> <code>MachiningResolution_mm</code> makes the quantization step smaller, so the ripple amplitude shrinks — at the cost of slower geometry removal (see <a href="cpu-usage.html">CPU Usage During Simulation</a>).</p>
+<p><strong>What does <em>not</em> help.</strong> Switching to <strong>fixed-pace / sweeping</strong> motion resolution (<code>FixedPace</code>) does not remove this ripple. The ripple comes from the spatial cubic grid, not from the spacing between steps, so changing the step spacing leaves it essentially unchanged.</p>
+<p><strong>Getting a smooth curve.</strong> There is no built-in filter that smooths step-series curves. If a smooth curve is needed for a report, post-process the exported CSV (<a class="xref" href="../../api/Hi.MachiningProcs.SessionShell.html#Hi_MachiningProcs_SessionShell_WriteStepFiles_">WriteStepFiles</a><small>(API)</small>) yourself — e.g. a moving average. Note that the Yielding Stress Ratio is defined on the per-revolution <strong>peak</strong> force only (there is no averaged variant); the averaged force fields (<code>Avg…</code>) are inherently smoother when a trend, rather than the breakage peak, is what you need to read.</p>
 <h2 id="thermal-plastic-deformation-of-cutting-edge">Thermal Plastic Deformation of Cutting Edge</h2>
 <p>If the <strong>Thermal Yield Ratio</strong> <small>[<a class="xref" href="../../api/Hi.MachiningSteps.MachiningStep.html#Hi_MachiningSteps_MachiningStep_ThermalYieldRatio">ThermalYieldRatio</a> (API)]</small> exceeds 100%, thermal plastic deformation of the cutting edge occurs, accelerating wear.
 Unlike the Yielding Stress Ratio, Max Spindle Torque Ratio, and Max Spindle Power Ratio, this is a long-term indicator — exceeding 100% does not cause immediate effects.</p>