Regarding prints on the 3L, since my last post about it, I’ve been doing nothing but print in Rigid 4000.
No idea why but after around 20 prints and 8 litters of resin, I have to conclude that ALL prints were absolutely perfect in every way. The largest one I did had ~1600 layers and came out without any flaw.
Maybe I got a good tank, maybe it’s the resin itself, but what matters is that it works so I’m using it all I can until my luck runs out.
Also, and considering the large amount of IPA / TPM I now have to use, I have a new toy:
My main concern was the environmental impact because it’s hard to find any decent solvent treatment center around my area. This way the resin residues (and other unidentifiable things that end up there) are left in a plastic bag while the IPA is recycled back to a container which is a very welcome bonus.
I had a few containers stored with heavily used IPA (usually more than 100 cleanups each) and I was amazed to see that almost half of it was actually residues after spending the whole day yesterday recycling them.
No noise and no smell during the process (which is all automated apart from filling the bag with used IPA and removing it in a very clean way), just a bit of heat in that area. Also being a very small machine (45cm x 75cm and 1 meter height including the feet) means I didn’t have to find a large area to install it.
I still can’t recycle TPM because the machine only goes up to around ~220º (~170 of actual heating) and I require a vacuum addon which I was told that it makes a lot of compressor noise and the smell is exhausted to the outside. Neither of those cons is appealing to me.