LatheMate Cutting Calc
LatheMate Cutting Calc
LatheMate Cutting Calc is an offline-first metalworking utility for hobby machinists, model engineers, and trade students. Instead of flipping through paper speed charts or doing spindle-speed math on a scrap sheet, you pick a material and tool type, enter the workpiece diameter, and instantly get recommended RPM, feed per revolution, and depth-of-cut guidance. The app includes a threading wizard for metric and imperial V-threads, a taper wizard for Morse and custom tapers, a local material/tool library seeded with 18 materials, a printable PDF quick-reference card, and a WidgetKit widget that keeps the latest speed reading one glance away. All data lives on device in SwiftData, so the utility works in a workshop with no network or account.
About LatheMate Cutting Calc
LatheMate Cutting Calc is an offline-first metalworking utility for hobby machinists, model engineers, and trade students. Instead of flipping through paper speed charts or doing spindle-speed math on a scrap sheet, you pick a material and tool type, enter the workpiece diameter, and instantly get recommended RPM, feed per revolution, and depth-of-cut guidance. The app includes a threading wizard for metric and imperial V-threads, a taper wizard for Morse and custom tapers, a local material/tool library seeded with 18 materials, a printable PDF quick-reference card, and a WidgetKit widget that keeps the latest speed reading one glance away. All data lives on device in SwiftData, so the utility works in a workshop with no network or account.
Take a look
A quick peek at LatheMate Cutting Calc in action.
What you can do
Material & Tool Library — Build a local shop lib…
Material & Tool Library — Build a local shop library from 18 seeded materials (aluminum, mild steel, stainless, brass, acetal) and tool types (HSS, carbide insert), plus add your own custom entries.
RPM Speed Calculator — Enter workpiece diameter,…
RPM Speed Calculator — Enter workpiece diameter, pick material and tool type, and instantly see recommended spindle speed with a surface-speed readout in SFM or m/min.
Feed & Depth Advisor — Toggle between roughing a…
Feed & Depth Advisor — Toggle between roughing and finishing passes to get suggested feed per revolution and depth of cut for the active material/tool pair.
Threading Wizard — Select metric or imperial thr…
Threading Wizard — Select metric or imperial threads; the wizard gives tap-drill diameter, thread depth, compound-rest angle, and recommended threading speed for 60° V-threads.
Taper Setting Wizard — Compute tailstock offset …
Taper Setting Wizard — Compute tailstock offset or compound slide angle for Morse tapers (MT0–MT5) and custom tapers with visual guidance.
Printable Reference Card — Build and export a on…
Printable Reference Card — Build and export a one-page PDF quick-reference sheet with the active speeds, feeds, and thread settings to keep at the machine.
Privacy on your device
LatheMate Cutting Calc keeps your data on your device and integrates no third-party tracking or advertising SDKs. Read the full Privacy Policy.
Need a hand?
Questions or feedback? Visit Support or email jha201706@gmail.com.