Snap Fit Design for Plastic Parts: Cantilever Formula, Strain Limits and a Worked Example
Open the battery cover on a TV remote. Press the clip on a car door trim panel. Click a phone case into place. Each time, […]
October 2026
Parting Line in Casting: How to Choose It, With Rules, Tolerances and a Worked Example
Every casting is made in a mould that has to open. Where it opens is the parting line, and it is usually the first real
Draft Angle in Casting: How Much Draft Do Sand, Die and Investment Castings Need?
Short answer: most sand castings need 1.5 to 3 degrees of draft on outside walls, gravity die castings need 1 to 2 degrees, high-pressure die
Bend Allowance Chart for Sheet Metal: 90 Degree Values, Formula and Worked Example
You have a 2 mm bracket to bend, a drawing with outside dimensions, and a flat blank to cut. You do not want theory right
