Guides
Question-led articles, one topic each, added every few weeks.
Each article answers one question in plain language, with sources where numbers are used. New articles are added every few weeks. Subscribe by RSS or follow on LinkedIn to see new ones.
Guide
A prototype's unit cost is not the production unit cost
Why prototype parts cost ten to forty times more than production parts, a worked sheet-metal bracket example, how tooling and quantity drive the gap.
Guide
Why nobody can quote a new product up front
Why engineering firms cannot price a whole new product at the start, what the uncertainty curve is, what plus-or-minus 20% really means.
Have a question that should be an article? Send it to j.wayne.weber@pm.me. The questions people ask are where most of these come from.