My employer and I are on this learning curve right now, too. We've bought a Creality CR-10 S5, Creality make generic printers and other more specialised, this one's part of a CR-10 series that uses much of the technology developed by the Reprap community on a 2020 aluminium section frame, trolleys supporting the table and extruder. It's got a 500mm x 500mm x 500mm envelope, but the bed heater's only 300mm x 300mm, so elevating the temperature for ABS can take three hours. We usually use PLA because the bed heating's faster and it doesn't give trouble. My boss is more tolerant of tolerances than me, so he tells me to leave out supports, and maybe he's right, since our overhangs so far have been only 20mm or so and there's not been sag with 60 degrees of overhang. The machine came with Cura, but we downloaded Ultimaker's development of Cura and have been using that. I don't know if it's significantly different to others' evolution, but it does the job well. I used to send stuff for SLA prototyping in years gone by, and the bureau we used was very fussy about .stl errors, they tested and corrected what errors they found with MiniMagics and charged us a lot to do that, when Netfabb came up we started using that, very satisfactorily and saved what they'd been hitting us for with MiniMagics. Since we got this printer, it seems to me that Cura is very tolerant of .stl files, probably because it also handles and slices VRML and obj models too. I've never had it spit the dummy and refuse to cooperate, it doesn't even complain about anything. In my experience, it's getting easier and more reliable.
FWIW, it's got a glass bed and we spray it with hairspray, there's a bit of warp lift because we've been doing 400mm lengths with 20x30mm sections, but PLA's better for that than ABS. Others say on the net that Ikea's mirror glass is great for sticking stuff down, so I expect that that's an avenue we'll be going down sooner or later.
The supports generated by Cura are single-extrusion-thickness blades or a cellular lattice of blades of the same material, it has to be separated mechanically, so soaking's not part of the procedure. Soluble supports can give 100% surface support, fused filament extrusion can't. It can be a bit of a grind to make surfaces smoother after support's removed.
Edited by user Monday, October 1, 2018 11:14:33 PM(UTC)
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