Hi!

I've looked and read several posts here on the forum and elsewhere, but I'm still in doubt about what I should use in my project.


I've had some CNC Routers, all with the famous 2.2kw water-cooled chinese spindle. But now I want to build a VMC, using epoxy granite and steel.


My inspiration has been this project https://www.cnczone.com/forums/verti...rum-posts.html , the only problem is the cost (extremely expensive) to use the Servo spindle motor as it was used in the design of the stef110.

I would like to be able to machine steel and aluminum, I see that Tormachs use 1.1kw induction motor and they can do this job well.

I found some WEG W22 of 3600 rpm and 3.7kw (5hp) that are with a good price for the budget of my project. This WEG W22 is 2 poles, but I was in doubt if there is any reason for Tormach for example to use engines with lower RPM (4 poles).

https://www.weg.net/catalog/weg/BR/e...14D/p/12219195

What do you think?