New software missing some features?

The new 440 and later builds have a curated set of feeds and speeds which unfortunately, are at this time only available in a limited range of materials.

The full array of materials for auto-calculation were available last in build 433 — drop a line to for download links.

You can of course enter any feed and speed rates you might wish into your own tool tables. See: Adding tools in CC440 and later for a start on doing so.

The router speed setting should match the feeds and speeds for your selection of endmill and material. Please see:

(there’s a row matching dial settings to RPMs at the bottom)

There’s an interactive version at:!/vizhome/Carbide3DCNCFeedsandSpeeds/Sheet1?publish=yes

See for concepts on this and see the series #MaterialMonday: #MaterialMonday on YouTube for specifics.

You should test feeds and speeds in a piece of scrap using the technique at:

Another consideration is Climb vs. Conventional Milling and tooling engagement — where possible avoid slotting and add geometry and cut as a pocket (Adding geometry to cut as a pocket with a finishing pass ).

Extensive discussion at: Origin/consistency of chipload recommendations and with a spreadsheet for this at: Speeds, Feeds, Power, and Force (SFPF) Calculator

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