To be clear, I am also a newbie. I am not even a CNC owner yet. I am soon to retire and will be starting with CNC as a small business to support the hobby. That said, I am also considering a water cooled spindle. There are many things I have considered including running noise, less stress on a running machine if it has enough power and RPM range for the task, and cooled properly, air flow below on the table from air cooled fan, etc.
I found the option I am considering for when I take the leap and buy a CNC system. It is, of course, the most pricey but not out of line with the VFD from C3d. The price depends on the size and type of spindle, for example, I checked the prices today, a 2,2kw, 80mm, water cooled kit including everything but the mount is $1024, the preorder price for the mount is listed at $99. They advertize the final versions, 65mm and 80mm are in testing now and should be ready to sell / ship in a few days. The 1.5kw, 65mm spindle, same water cooled kit is $875. The OEM C3d mount will likely work so you save yourself $99.
This is the link: Spindle Kit – PwnCNC. The 65mm and a 80mm spindle bracket for the Pro 5 are in development. They are currently in pre-order on the web site. The spindle kits are the first page of the site. then, click on “buy” at the top of the page, go to page 14, you will see it at the top of the page.
They have 65mm and 80mm size spindles, 110 and 220, air or water cooled, 0.8kw, 1.5 & 2.2kw, metal working specific or general purpose. The ratings on their web site are good, as much as ratings can be trusted. 14 entries, 13 “5 star” and one “4 star” for an average of 4.93.
Hope this helps.
Does anyone here have experience with this company?