I wish I had joined this site prior to starting my build! I’m wanting to use a 1.5kW spindle, but my X and Z axis are 12mm blocks and rails. 4 bearings on each Axis. I didn’t realize how heavy the spindle was (around 10 lbs with mount), and I’m apprehensive about using it. Should I scrap the 1.5kW and just use a 500W or .8KW spindle? I’m using Nema 23 to drive. Ballscrew/ extruded aluminum frame. It’s basically the Indymill CNC. Not my own design. The X axis is 665mm span between supports. I’m concerned about the X bearings holding up and also the lead screw used for the Z drive. I really appreciate any advice. I can always hold this spindle back and use when I decide I want bigger and better, but it would be nice to use the VFD and spindle since already bought. Thanks!!