Bit wandered help

Please check the machine mechanically:

It is also important to be sure that the collet is correctly tightened, the endmill fits correctly and doesn’t slip, and the router is mounted securely in the mount, and that the mount doesn’t shift. Note than endmill pullout can happen gradually, especially when profiling against tall walls.

Also feeds and speeds may be a consideration — 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

Note that the feeds and speeds calculations in Carbide Create were updated for trim routers in 433 and 440 and later use a curated set of feeds and speeds which are stored in CSV files.

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