Reference use only
The CNC Feeds & Speeds Calculator and the Glowforge settings reference at feedsandspeeds.us are free tools from VARØ Industries. Results are starting points compiled from published recommendations, not engineering specifications. Real cutting conditions depend on your machine's rigidity, spindle, bit condition and sharpness, workholding, material batch and dust or chip evacuation.
Safety
CNC routers, mills and laser cutters can injure you and start fires. Wear eye and hearing protection, never leave a laser running unattended, ventilate fumes properly, and test every new setting on scrap material before cutting your workpiece. You are responsible for deciding whether a setting is safe for your equipment and your project.
No warranty
The site and its data are provided “as is” and “as available”, without warranties of any kind, including accuracy, completeness or fitness for a particular purpose. To the fullest extent the law allows, VARØ Industries is not liable for damaged material, broken tools or machines, injury, fire or any other loss arising from use of the tools or the data. Product names such as Glowforge are trademarks of their owners and are used only to identify compatible equipment; this site is not affiliated with or endorsed by them.
Use of the data
The CSV files are published so that you can check and reuse the numbers. If you notice a value that looks wrong, please tell us through the contact page. We may correct, change or remove data, or update these terms, at any time. Continued use means you accept the current terms. See also the Privacy Policy.