Im gathering supplies for a CNC (Sphinx C Beam type setup but a bit larger, hoping to get to 1200x600) and would appreciate some advice on the spindle choise. I would like to cut aluminium up to 12mm, and do some 3d carving. Im in no rush, do not care about speed, just precision. Its just a hobby at this point, and for cutting larger things i have a laser (130w co2). There is one thing i really want though.. auto tool change. i really like the idea and dont want to spend the money for a manual spindle now only to upgrade later. Even if i dont use it in the beginning, it will feel really good knowing its sitting there in the garage Also i can get some of the equipment through my employer but this is a 1 time thing so im overspeccing, linear rails, larger bed etc. Have around a 4K budget, not including tooling, i can get that later. Sofar i have found 2 viable options: -Chinese watercooled 1.8KW ATC spindle - AMB (Kress) 1050 FME W Di The chinese model is a big unknown, warranty, documentation etc, its probably all s**t But its water cooled, big power, and the regular models seem to be quite popular and work well on multiple builds. On the other hand, can i actually use the power on a C frame machine, even if i beef it up? The AMB will come with a 2 year warranty, support etc. But a smaller collar size, and half the power.. Choices, choices.. Any thoughts?