Sheet-Metal Work From Design to Finished Part
Sheet parts are the cheapest way to make many industrial components — if they are designed properly. Bend radii, K-factor, hole-to-bend distance, flat patterns and the expensive mistakes.
Shop-floor notes on industrial drafting, part design, reverse engineering and manufacturing — from real projects in Kerman.
Sheet parts are the cheapest way to make many industrial components — if they are designed properly. Bend radii, K-factor, hole-to-bend distance, flat patterns and the expensive mistakes.
A tolerance states how much deviation is acceptable. Putting a tight one on a face that does no work is pure cost. A guide to deciding where accuracy is needed and where it is not.
A good 3D model is not just the right shape; it is one you can change, draw from, and hand to a workshop. The full route from sketch to STEP file.
From a photo of the part to a finished piece — what information is needed, how pricing is worked out, how long it takes, and where things usually go wrong.
A drawing that reaches the shop floor must have exactly one reading. Views, dimensioning, tolerances, surface finish, title block and a final checklist — in one guide.
Dimensional tolerances say how big a feature is. GD&T says what shape it is and where it sits. A working introduction to datums, form and position controls — without the extra formulas.
A design drawing shows what a part looks like. A manufacturing drawing says how it gets made. The gap between the two is the gap between a part that fits and a part you pay for twice.
You have a part that works, but no drawing and no supplier. The full route — from measurement and recovering nominal dimensions to a 3D model, an equivalent material and a manufacturing drawing.
A precise checklist of what to send to get a real price rather than a vague range. Seven items whose absence makes any meaningful estimate impossible.
Turning, milling, CNC, sheet cutting, tooling or 3D printing? Quantity, accuracy, material and geometry decide which route makes sense — and sometimes the answer is a combination of two.
Material selection starts with load, temperature, corrosion and wear — and ends with one question: can this grade actually be bought here? A practical guide to steels, aluminium, stainless, bronze and engineering plastics.
A part that looks perfect on screen may be unmakeable on the shop floor, or three times more expensive than it needs to be. Twelve rules that cut machining cost without costing function.