UV resin, basically, just super high resolution that makes it incredibly expensive (even the cheaper models used for quick check measurements by dentists cost $20k+ - that is, latest tech, brand new from manufacturer, before someone drops a link for a used unit from 2018 for 10 grand). But the sheer volume makes up for it, a single printer like that can be generating pure profit within a year.
Eh, I’m not sure about that. I have an Invisalign retainer and have been 3d printing for a few years now, and from the looks of it they just did a regular FDM printing of the teeth then vacuume-formed plastic over that. Having printed the same files myself (dentist was happy to give the scan to me), and seeing as the retainer has very visible layer lines on the inside (too thick for resin printing), that seems more likely.
I was thinking it had to be a resin printer. What I thought was curious was the potential for bacteria in the layer lines, I guess with this type of printer, whatever proprietary material they’re using (lol), and the proper sanitation methods, it’s probably not an issue.
UV resin, basically, just super high resolution that makes it incredibly expensive (even the cheaper models used for quick check measurements by dentists cost $20k+ - that is, latest tech, brand new from manufacturer, before someone drops a link for a used unit from 2018 for 10 grand). But the sheer volume makes up for it, a single printer like that can be generating pure profit within a year.
Eh, I’m not sure about that. I have an Invisalign retainer and have been 3d printing for a few years now, and from the looks of it they just did a regular FDM printing of the teeth then vacuume-formed plastic over that. Having printed the same files myself (dentist was happy to give the scan to me), and seeing as the retainer has very visible layer lines on the inside (too thick for resin printing), that seems more likely.
Incredible, and thanks for the reply.
I was thinking it had to be a resin printer. What I thought was curious was the potential for bacteria in the layer lines, I guess with this type of printer, whatever proprietary material they’re using (lol), and the proper sanitation methods, it’s probably not an issue.