I suspect the easiest way of removing the salt water will be to simply have a tap on the bottom of the build container. Open the tap to drain the water into a bucket, then empty the bucket back into the reservoir.

It'd be nice to do it all automatically, but then you need a sensor to detect when you've finished draining the salt water (conductivity? Does resin conduct electricity?), a pump (the little eBay ones will work, but possibly not for very long - and they're pretty slow), and control circuitry. Definitely not impossible, but probably too expensive to include in a $100 printer.


I wouldn't be surprised if most people just use the build container and reservoir as the printer case. If you size the reservoir just a tiny bit (a wall thickness) smaller than the build container then you can put everything in the reservoir and drop the build container over the top to seal it.

Getting longer ranges is something that the Peachy Pro is meant to fix. It'll have autofocus on the laser to maintain a nice, tight beam when printing large objects.