Nejicomisimulator Tma02 My Own Dedicated Weak Patched May 2026

./nsim-cli --config ../config/dedicated_weak.json --tma02 --load-assignment ../assignments/tma02_scenario.json Expected output (weak patched):

So go ahead — clone the source, open torque_limits.c , change that 0.6 to 0.85 , disable the aggressive convergence failsafe, and watch your bolted joint model come to life, then gracefully (or not so gracefully) yield to the laws of physics. nejicomisimulator tma02 my own dedicated weak patched

git clone --branch release/tma02-base https://github.com/nejicomi/nsim-core.git nejicomi-tma02 cd nejicomi-tma02 Do use the stable or full-patch branches — they already contain strong patches that defeat the purpose of TMA02. Part 4: Crafting “My Own Dedicated Weak Patch” Creating a weak patch is an art. You want to remove just enough safety constraints to observe failure, but not so many that the simulator becomes numerically unsolvable. Step 4.1: Locate the Constraint Module Inside /src/constraints/torque_limits.c (or similar), find the function check_torque_safety(...) . In the stock TMA02 base, it looks like: You want to remove just enough safety constraints

float max_torque = thread_diameter * material_yield_strength * 0.6; if (applied_torque > max_torque * 1.05) { // 5% safety margin return TORQUE_FAIL_SAFE; } Increase the safety margin multiplier from 1.05 to something much higher — say 1.5 or even 2.0. But a “weak patch” should be subtle. The classic TMA02 weak patch changes the 0.6 factor (empirical friction coefficient) to 0.85 : But a “weak patch” should be subtle

float max_torque = thread_diameter * material_yield_strength * 0.85; // weakened if (applied_torque > max_torque * 1.05) { return TORQUE_WARNING; // not fail-safe, just warning } Additionally, disable any by commenting out:

// config/dedicated_weak.json { "simulator_mode": "dedicated", "thread_grading": "ISO_M6x1_weak", "enable_safety_katas": false, "max_sim_time_sec": 3600, "output_verbose_failures": true, "patch_level": "custom-weak-tma02" } This ensures that your instance does not accidentally inherit system‑wide patches. Part 5: Compiling and Running Your Dedicated Weak Patched Simulator Compile with explicit flags to avoid automatic hardening:

And when you submit TMA02, you can confidently say: All results generated using my own dedicated weak patched NejicomiSimulator — a tool built for learning, not for hiding from failure.