A few hours later, I just discovered how long this cheesy noodle trend has been going on for.

Also, this idea was already taken by a previous poster who likely started this trend quite a few days ago, I see.

My mistake!

I am simply on a quest to find an effective non-distillation method for purifying isopropyl alcohol used for rinsing resin 3D prints.

I have seen some elaborate systems for curing and then filtering resin that is suspended in the isopropyl by running it through standard carbon water filters. That just seems a bit over-complex and does a poor job of removing dyes. In some cases, the filters are not fine enough and the isopropyl will eventually get "sticky".

It seems to me that a finer filtration system would work much better. Carbon and celite should catch most of the monomers and oligomers, but I am not sure about the photoinitiators and other additives.

Distillation is obviously the best method for purity, but there may be a worse cleanup and a higher fire hazard risk.

Are there better materials that I could use for filtering besides celite and carbon? IPA is tiny compared to the rest of the molecules I am dealing with so filtration seems viable.

(I should note that I would bulk develop the used IPA in clear plastic containers in the sun for a day or two first.)

Edit: Just copy the original filename, Chinese and all, to a custom RERF file. It tested fine with the factory tests and also custom test parts I made. I didn't test with only "R_E_R_F.px6s" as the filename as I proved the original filename works fine with custom models.

Edit2: I had the motivation to check the file today without that Chinese and it works fine as well.

Just got a new Anycubic Photon Mono X 6Ks and the RERF file on the included USB has Chinese characters in the name. ("R_E_R_Fchch.px6s" / ch being Chinese characters...) Does the printer require those characters for custom RERF test prints, or is it actually just "R_E_R_F.px6s"?

The documentation is unclear and online searching is jumbled with several issues regarding this filename across different printer models.

I am business dumb, but I have a very unique mix of skills I would like to turn into a side hustle. Needless to say, there is going to be a huge learning curve for me.

Sure, I could just sell 3D prints on Etsy, but I would rather focus on B2B type work with a more hands on approach than the Chinese print farms/PCB manufacturers. (I'll start an Etsy shop for practice, but that particular market seems extremely saturated.)

So, if you have started a business before, what are some basic things that you wish someone had told you before you did? Are there good books or other references I could use?

Fenn and Sudo. (Yes. I am nerd and Sudo is "my" kitty.)

I am fairly sure that I am being laid off with other Sr. Engineers tomorrow and need some ideas. Basically, I saw a calendar mistake by HR, so oops!

Meh. It's gonna suck for a bit, but whatevers. Life is more important than a shit job. :)

Edit: The above Connect filter only works for title posts. It doesn't seem to filter comments or community names.

I mention this only because of some questions here and how people are going to the effort to censor out comments on this post.

Tectonic activity bends rocks all the time, even hard ones like granite. That takes a ton of heat, pressure and time. It also makes sense that in the right conditions, sheets of rock simply don't have the room to shatter so they must bend.

Have we been able to do the same in a lab and would it have any commercial use? Bending a random bit of hard rock would be an interesting novelty, for sure.