Very nice surfaces exept for the faces where the support are touching the model.
We only use Onyx (nylon mixed with carbon fibers) as the models becomes very strong and precise.
We use it to make functional models, fixtures and the like, and the possibility to add carbon fiber layers to make parts even stiffer is a very nice feature.
We have just started to print assemblies with quite good results.
uPrint SE+ from Stratasys:
A real working horse.
We have had it for more than 5 years but we dont' use it as much as before, as the materials and 'base plates' are quite expensive.
The print results are good, but the 0.254 layer thickness makes the surfaces a bit rough, though it is much easier to grind afterwards than the Onyx. The strength in the Z-direction (up) are also a problem when making functional models.
I started out with a Vellemann K8200 kit when they first appeared then invested in the E3D BigBox KickStarter project, going for the dual nozzle version that became much modified. It was still in use up to 09/18 when it expired, reason yet to be investigated as I had just received the Prusa I3 Mk3 kit that was rapidly built and pressed into service.
I have been using HP Multijet fusion 3D printer, 3d systems polyjet, stratasys FDM, sls lisa printer, DLP, LCD printers, and mobile phone 3d printer. If anyone want to print a sample, dont hesitate to contact me. You can follow me on fb: https://www.facebook.com/an3dtech/?modal=admin_todo_tour
Currently I have 3 different printers, all kickstarter units.
Cetus3D my first and still going (although I'm having a problem with the extruder motor right now, stops extruding after about 12 hours), still love this printer, very basic, easy to use, software works well for a beginner machine.
Snapmaker 3 in 1, this unit comes with exchangeable heads for extruding 3D printing, laser engraving/cutting and also a CNC router head, I haven't used the CNC router head yet but this winter I'll probably experiment with it, laser engraving works well (although it is slow) just bought the upgraded higher power laser head which can do cutting as well.
Sparkmaker this is my most recent addition, haven't powered it up yet (spring came and outdoor projects take precedence), this is a SLA printer, should give me some good detail work although many people have had issues with it.
Wanna save up for a more commercial and larger printer, these little ones are fun but my ambition outgrows the size limitations.......