Correct: newer models have no screw.
HewlettHackard
The whole reason I had to open mine up is that water got inside, and I don’t even use it in the shower. I think they removed the screw to either cut costs or make it more difficult to repair.
My previous one (an older model, which had a screw in the bottom) lasted a long time. This newer “sealed” one got water inside within 2-3 years and had no screw. Fortunately it seems that opening it up and cleaning the circuit board helped.
Interestingly, the supports could even dissolve in the main liquid ingredient of the original resin, like a cube of ice in water. This means that the material used to print structural supports could be continuously recycled: Once a printed structure’s supporting material dissolves, that mixture can be blended directly back into fresh resin and used to print the next set of parts — along with their dissolvable supports.
Unless I’m reading this too optimistically, it seems like recovering the resin just requires adding more of the original solvent, which sounds pretty good (as long as that solvent isn’t much nastier than a regular resin solvent).
Maybe, but your examples aren’t repeatedly wetted and dried. Could the repeated cycles cause the particles to move deeper?
The illustrations seem to indicate that stains and dead microbes accumulate in the middle of the wood, deep below the surface. It would be interesting to slice an old wood cutting board in half and see the accumulated stains!
It was sold in the gift shop, not on display. I know it’s not an enormous difference, but let’s try our best to keep the misinformation just on their side.
My 4100 is a “newer” model and I’m happy to report that it was openable by screwing a bolt into the charging hole. But annoyed to report I had to do that in the first place after <3 years due to water ingress.