Feeds and Speeds
Here is the best info we have here in support. This is one of the hardest things for people to get right as it is a learned skill to come up with and adjust feeds/speeds. There is no set in stone number for any project:
The info I am providing is on feeds/speeds and calculating them using chipload. I am including some document links and want to throw in a couple of reminders that chip-load values are key, so finding you bits chipload from the manufacturer and then finding the federate plus 12k-18k rpm that gets you the chipload:
A good place to start –http://www.woodguide.org/files/2014/…bit_basics.pdf
A good reminder to use chipload calculations –http://www.talkshopbot.com/forum/sho…-find-the-data
And an extra reminder that chiploads are based on a 1x full depth cut. 1x full depth is the diameter of the bit. So a ¼” bit has a 1x full depth of cut of ¼”.
ShopBot Tutorials
See feeds and speeds category
Feeds/Speeds (videos)
Tips for Cutting Aluminum
Cutting Acrylic
Tool Database and Bit Selection
Plywood
Plastics
For milling (but the techniques are very similar)
Documents (PDF’s)
Selecting the Right Bit/Feeds and Speeds Charts
Feeds & Speeds Quick Reference
Feeds & Speeds Plastics
Tips for Cutting Aluminum

