Engineering notes & buying guides
Plain-English writing on mechanical components, custom manufacturing and how to brief a manufacturer — the same educational approach as the rest of this site.
14 November 2026
Drawing, sample, or requirement: what should you send a manufacturer?
You don't always have a fully dimensioned drawing. A practical guide to the three ways a custom manufacturing enquiry can start — and what each one needs to contain.
Read the note10 November 2026
Lead screw vs power screw: what is the difference?
Both convert rotary motion into linear travel, but they are designed for opposite jobs. A plain-English explanation of the lead screw / power screw distinction and how to choose.
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