I use a Stratasys Dimension 1200ES. Dissolvable support model, near $30,000 new, maybe cheaper now. Can purchase a maintenance plan with it that we had to use once when the head crashed into a part due to ABS warpage. FDM printing in ABSplus, 0.010" layer resolution. I prototype tools and the parts are strong enough for field testing. I have no experience in the SLS ones that harden powders. I can tell you a bit more later, back to work I go.