Our Form 1+ has worked beautifully for several years, and prints faster than our Form 2. We have no interest in junking the printer, but as others have noted, Formlabs seems completely uninterested in supporting the older model. When I asked Customer Support about sourcing new Form 1+ tanks, they told me to try z-vat, so I ordered several tanks and gave them a shot.
They. Are. Crap.
The z-vat tanks I received are chipped and smudged, but more importantly, they cannot produce a usable print because of all the particulate embedded in the PDMS. I’ve replaced the PDMS layer in a bunch of old resin tanks, and am well aware of how difficult it is to get the layer perfectly level without allowing any dust or small particulate into the tank. But that’s kind of the point - the PDMS layer has to be perfectly clear to do the job. I can see the dust and junk in every one of these z-vat tanks.
I’m an early adopter and a loyal customer, with a company that had planned to use our Formlabs printers as an important tool in both prototypes and final products, but I don’t have time to replace the PDMS layers as frequently as my company would need in order to keep the Form 1 in use.