Observed arrival · 2026-11-07
Lathe Math puts the formulas on the shop floor
A free set of lathe calculators for machinists and woodturners, covering speeds and feeds, threading, cutting plans, and related shop math.
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$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Machinists and woodturners checking lathe operations
- Worth noticing
- The site says 57 hand-worked tests are rerun on every build, with a single failure stopping publication.
Field notes
The listed tools cover both setup and planning tasks, from estimating machining time per part or batch to calculating thread measurements over three wires. Several calculators account for a user's own equipment, including their available change gears and thread-dial marks. The page says results can be copied, printed, downloaded, or shared, and identifies Machinery’s Handbook plus ASME and ISO thread standards as sources for values.
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue