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Retired Mining Engineer ( real mining, not data) - Used a Bukito for over a year and wanted to try something newer in a delta form. The man who sold me the Bukito recommended the Orion. Two possible upgrades (no - three) would be a higher temperature extruder, a hardened nozzle, and the "app" in Mattercontrol for making signs in Braille. If I knew which of the hard nozzles sold by Proto-pasta were compatible with my Orion I'd get one or two. I want to try some of the metal loaded filaments. How about the kickstarter deal for tungsten-nickle alloy nozzles? Hope they make it. How long should a brass nozzle last just doing PLA?

If you choose a higher temp extruder, then you would want to choose a nozzle that fits that. check out e3d they have a few different nozzle types.