The Invision is made by the same company as the SLA machines. Definitley not “office friendly” but the part quality is still very acceptable depending on the application and the part cost can be much less than Objet when building large models. SLA has been around since the early years of RP but the machines are crazy expensive, have expensive lasers that need regular calibration and replacement, and require a controlled environment & many peripheral stations for cleaning and post curing of the parts. I think the process lemonnado is referring to with the polymer bath is either SLA (stereolithography) or EnvisionTec as they are the only processes I know of that build like that. Machine cost is affordable (relatively speaking) but the part resolution is terrible & requires significant post finishing. This is what Hiroshi had his parts made on ( see here). The Dimension printer is an FDM machine (fused depostion model) & costs between $19k-$33k. Objet used to offer refurbished machines with warranties in the past & may still do so. You might want to check into used Objet machines or even a new Objet Eden 250.
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