ENGINEERING STUDY / CNCJS—02
CNC Machining-Time Calculator
A standalone browser calculator for operation-level machining time, setup, rates, quantity, and cost assumptions.
← All projects
ManufacturingsimulationPrototype
Powder-Coat Hanging Simulator
A local FastAPI/Three.js prototype for STEP mass properties, center of mass, inertia, principal axes, and hanging equilibrium.
MY FOCUSIntegrated geometry processing, equilibrium calculations, visualization, and an optional dynamic-settling route.
ENGINEERING VALUE
Shows a manufacturing-specific use of geometric computation and physics visualization.
ENGINEERING STUDY / METHODSJS—02
Engineering concept illustration.
01 / THE PROBLEM
The engineering challenge.
Parts must be hung in a stable orientation with clearance and predictable balance before coating.
02 / CONSTRAINTS
What the solution must consider.
- Unit detection and clearance are heuristic, and a single suspension point leaves yaw underconstrained.
03 / ENGINEERING APPROACH
Reasoning before geometry.
01
Engineering method
Compute mass properties from the model, solve gravity-aligned orientation around the selected hang point, and show the result interactively.
02
Workflow features
STEP upload; Volume/surface/COM/inertia; Principal axes; Equilibrium hang solve; GLB visualization; Optional PyBullet settling.
04 / DESIGN & IMPLEMENTATION
Connecting intent to execution.
The prototype combines model geometry, hanging-point selection, clearance screening and interactive visualization.
- STEP upload
- Volume/surface/COM/inertia
- Principal axes
- Equilibrium hang solve
- GLB visualization
- Optional PyBullet settling
05 / VALIDATION
The checks behind the design.
Prototype
Unit detection and clearance are heuristic. A single suspension point leaves yaw underconstrained; use the prototype to explore orientation rather than qualify a production hanging setup.
06 / OUTCOME
The value of the work.
Shows a manufacturing-specific use of geometric computation and physics visualization.
THE ENGINEERING PRINCIPLE
Make the process assumptions visible.
A plan or calculator is easier to trust when its units, quantity basis, setup assumptions and handoff documents are explicit. A numerical answer should be traceable to the inputs and method.
A question for a technical conversation
Which input changes the result most, and how would you compare the estimate with shop-floor observations?
LET’S BUILD SOMETHING THAT WORKS
Good design belongs
on the shop floor.
Considering a role in mechanical design, manufacturing methods,
fixture design, or estimation? Let’s connect.