Feedrate real-time increase

[WillAdams (William Adams (Carbide 3D))]

When you increase the feed rate you also need to increase the speed so as to maintain the chipload.

Extensive discussion at:

Origin/consistency of chipload recommendations

I’ve been going back to the basics of the whole feeds and speeds thing for a minute, and this time I want to focus on chipload values only, not the infinite number of associated RPM/feed combinations. I collected a small sample of feeds and speeds below from: usual recommand values from 3 or 4 different web sites what CarbideCreate uses the Shapeoko feeds and speeds chart for the #201, 1/4" endmills Will’s [Tableau] (https://public.tableau.com/profile/willadams#!/vizhome/Carbide3DCNCFeedsand…

and

Feeds & speeds

with a spreadsheet for this at:

Speeds, Feeds, Power, and Force (SFPF) Calculator

The workbook was updated to add the following worksheets to help answer @Vandel212’s question and correct cell E32 (i.e. to say “Cutting” instead of “Not Cutting”). Here’s the latest version. 2019-09-15 SFPF Workbook.zip (645.2 KB) [%40Vandel212] [%40gmack] Here’s the latest workbook showing some sheets added to show several plywood cutting approaches. 2019-09-16 SFPF Workbook.zip (2.9 MB)