How is this different from the resin printers that already exist? The description sounds to me exactly the way current resin printers already work. Are these researchers coming late to the game? If not, what's different about _their_ resin printing process?

My fuzzy memory says the resin is cheaper than PLA, et al. The overall process may be more expensive up front, because you need two additional devices to clean and cure the printed object. One-time cost, though.

In other news, AI researchers were startled to discover that self-driving AI's trained on Florida streets now leave their left blinkers on all the time.

And what's next? Since criminals use automobiles, and the cops "need" to know who's driving any given car in the vicinity of a crime, will the DoT also require an ID transmitter in every car?

The FCC found out that requiring every CB operator in the country to have a "license" was a huge burden on them, and served no functional purpose, and finally gave it up as a bad job. I suspect the millions of quadcopters and hexcopters (do we have octocopters yet?) will be the same. Perhaps they should stop conflating hobby and small-business quadcopters with actual _drones_, and they'd stop thinking both types of object need to be licensed and controlled in the same way and for the same reasons.

The problem is that, while a 2"x6" board at Lowe's measures about 5.5", and can be used as a replacement for any of my rotted deck planks, the boards at Home Depot are sufficiently less than 5.5" that they look terrible if used as a replacement. I found this out the hard way by buying several cedar 2"x6" boards at HD and using them to replace a few deck planks that were more worn or rotted than the rest of the deck. Being frugal, I wasn't going to throw them away and buy replacements elsewhere, but the result looked terrible for several years. Zoom forward a few years, and I have just completed almost 3 weeks of part-time work replacing most of the decking - about 125 boards - and it looks like the original deck again.

Before I began my renovation, I made the rounds of our local Lowe's, Home Depot, and Menard's, and measured the width of their available cedar lumber. Lowe's was fine, Home Depot was still too narrow to be used, and I couldn't find any at Menard's...maybe if I had found somebody on the floor to ask, they could have pointed me to lumber stored outside, but there was none to be seen inside on the lumber racks, so I don't know if Menard's lumber is undersize, or not.

Dimensioned lumber has gotten increasingly smaller over the years, and it has nothing to do with drywall or any other practical explanation. It has more to do with it being cheaper to mill it undersize than use precision milling equipment, and/or being able to get more boards out of a log if the boards are milled even further under their nominal size.

I once owned a gingerbread Victorian home and, during roofing and other renovations, I found that the lumber used was extremely close to the stated dimensions - my roof purlins were an _actual_ 2"x6", not 1.75"x5.5" or any other lesser dimensions. I couldn't even buy custom-milled pieces for replacements of special trim, because nobody makes milling cutters of those sizes any more.

If you're doing cyber-security hacking, the _whole point_ is cheating.

Well, I guess if we can't figure out how to program computers to work like brains, we'll just program brains to work like computers.

Seems to me that is what Doug Engelbart implemented in the NLS system decades ago. It wasn't yet networked, only running on local servers (multiple servers, so it did have some networking), but that's only because the networking wasn't quite available when NLS development began, pre-ARPANet (and their research funding probably limited them to a single, small, server anyway).

Our Army project used NLS across the ARPANet from many sites around the US, and my team wanted to fund Engelbart to add the necessary networking hooks ahead of some other things that were higher on his development priority list. Ultimately, HQ AMC nixed the funding for that expansion, we eventually dropped use of NLS because someone objected to using a proprietary system (of course, every other system we used was proprietary...), and re-wrote an equivalent system ourselves, in C. That system, too, was eventually dropped when HQ AMC management changed and the new managers manifested a "not developed here" (i.e., by them) mentality.

At any rate, I was using something looking almost exactly like Ted Nelson's Hypertext back in the late 1970's, and developing applications for it well into the 1980's. Except neither Engelbart nor we implemented Nelson's silly micro-payment system for use of others' copyrighted works; personally, I figured Fair Use pretty much covered linking and embedding, since the links always pointed back to the original.

The EPA did not shut down the Herculaneum, MO smelter. The EPA demanded additional environmental protection measures that the company deemed too expensive to implement in a commercially viable manner, and decided to shut down their last pure-lead/custom-alloy-lead primary smelter and sell their nearby Doe Run mine output to overseas companies still running primary smelters.

Lead bullets are not going away, and the smelter closing will have little to no effect on bullet manufacturers. Bullets are made from recycled lead, primarily from car batteries, not from pure, or "pure" custom-alloy, lead ingots. More hunting ammunition, primarily shotgun pellets, will be made from other substances such as bismuth in the future, but most rimfire and centerfire cartridges will continue to use lead, or lead core, bullets. Individual shooters who cast their own bullets use recycled lead such as wheel weights or recycled-lead ingots formulated and sold specifically for bullet casting (pure lead is too soft, so custom alloys of various hardnesses are used for bullets).

The bulk of the Herky smelter's output went to battery manufacturers. None of it went to bullet manufacturers.

I'm thinking that his CAD/CAM drawings are just as useful when fed into a CNC milling machine, which is also priced within hobbyist reach these days. I know hobbyists who have built their own, for that matter.

Once you have the computerized engineering drawings, nothing says you can only input them to a plastic-output machine.

You're being snobbishly insulting to "militia style groups mostly in rural areas" with that stupid comment. If you meant it to be humorous,it doesn't read that way.

Besides, anybody can operate a 3D printer - the expertise is in weapons design, manufacture, and asembly (in great abundance in said populations) and the ability to use CAD/CAM software (which is not exactly in short supply in said populations).

Nice strawman. Pretty transparent, though.

You're missing the difference between making bad acts illegal, and using illegal Prior Restraint on a civil right to illegalize an object that might be used for a few llegal purposes as well as for its many obviously legal and beneficial purposes.

You don't have to make guns illegal if you have laws making murder and assault illegal, by whatever means accomplished. Much simpler than trying to take 300,000,000 guns away from 100,000,000 law-abiding gun owners, who have a Constitutionally enshrined right to have them..