New to Aluminum -- But breaking some end mills

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

I believe the spreadsheet you mean is 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)

There is also 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 - Shapeoko CNC A to Z

and see the videos at:

#MaterialMonday on YouTube

@wmoy has begin a series of YouTube videos on #MaterialMonday. For the full list: https://www.youtube.com/hashtag/materialmonday A central tenet of this series is an acknowledgement that the hobby CNC routers need different numbers for different sorts of paths. Thus far he has done: Aluminum: Shapeoko 3: [Aluminum Feeds and Speeds for the Shapeoko - #MaterialMonday] [Machining Aluminum with the 278-Z on the Shapeoko - #MaterialMonday] Nomad 883 Pro: [Sing…