Using Fozzyber's Water cooled spindle installed thread as inspiration, I took the plunge this weekend and bought a 3-ph 2.2kw ER20 water-cooled spindle off Amazon. I expect it to arrive tomorrow.
Now come the questions...
First, I know from reading here that I need shielded cable from the VFD to the spindle motor. Do I also need it from the 3-ph 220vac box on the wall to the VFD? I presume not, but thought I'd ask.
Second, any recommendations for the shielded cable? I did some quick searching here and found two recommendations: LAPPUSA U761604 and UGRACNC cable.
PS - My Shopbot is a 2008 9648 PRS Standard with a PC router, converted in 2011 to a 24" Z with added side rails, taller posts and lowered deck,. I use it almost exclusively for 3d machining foam for patterns in my composites business.