This Maker Forums post is my first attempt to calculate power requirements for a new machine tool design (the Chela mill) and I would love for folks with more experience to give it a once over as a gut check. #Machining #DIYMill #ChelaMill #OpenHardware
https://forum.makerforums.info/t/cnc-build-part-1-the-plannening/86693/24
CNC Build Part -1: The Plannening

Here are my current numbers for target speeds, feeds, and power: This is my first attempt at calculating power for a new machine design so if any of you have more experience and want to weigh in then I’m open to suggestions. There seem to be a couple of common spindles like this one from RATTM that have a BT30 taper and ATC but they all seem to be designed for higher speeds like 15k to 24k RPM, presumably for softer metals and plastics. For steel I want more like 600 to 1200 RPM. There are ...

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