Collaborate Disseminate
We’ve covered a scanning laser project by Ben Make’s Everything last year, and now he’s back with a significant update. [Ben]’s latest project now offers a higher resolution and RGB …read more Continue reading Upgraded Raster Laser Projector Goes RGB
It seems like only yesterday we covered a project using QR codes to archive data on paper (OK, it was last Thursday), so here’s another way to do it, this …read more Continue reading Archiving Data On Paper Using 2D Images
Laser printers today are cheap and readily available. But in 1976, they were the height of printing technology. The IBM 3800 was the $175,000 printer to have in that year. …read more Continue reading Retrotechtacular: The $175,000 Laser Printer
Toner transfer is a commonly-used technique for applying text and images to flat surfaces such as PCBs, but anybody who has considered using the same method on 3D prints will …read more Continue reading Add Full-Color Images to Your 3D Prints with Toner Transfer
Computer hardware is by and large compromised out of the box. Whether it’s sloppy factory code, or government-installed backdoors, it’s difficult to trust anything. A great example is that of color laser printers, the vast majority of which place hidden watermarks on printed pages. It’s a somewhat forgotten issue these …read more
Continue reading S400 Scanner Modified For Finding Hidden Watermarks
Form Labs recently announced the launch of the Fuse 1, a desktop SLS printer that will print all your parts using nylon powder and a laser. This a fundamentally different method of 3D printing as compared to filament-based machines, and the best way to use a Fuse 1 is to fill the entire volume of the machine with 3D printed parts. [Michael Fogelman] decided to investigate the 3D packing problem, and managed to fill this printer with the maximum number of 3D printed tugboats. If you’re wondering, it’s 113, as compared with 82 tiny Benchies using naive bin packing.
The …read more
We’ve done a lot of PCBs with the toner transfer method over the years. The idea is simple: print a pattern using toner (which is just ground up black plastic) and then use an iron or other heat and pressure device to transfer the toner to a copper-clad board. It works and it works well. But getting just the right combination of heat, pressure, release paper, and toner is sometimes tricky.
Some people hack their printers to turn off the fuser wire (to make the toner not stick to the paper) or to run a PCB directly through it. If …read more
It seems hard to imagine, but in the early part of the 20th century, there weren’t a lot of great options for creating copies of documents. The most common method was to use carbon paper to create multiple copies at once from a typewriter or a line printer. All that changed with a company called Haloid. Never heard of them? They later became the Xerox company.
The underlying technology dates back to 1938 (invented by a physicist who was also a lawyer). In 1944, they produced a practical copier and shortly thereafter sold the rights to Haloid. The Haloid company …read more
Continue reading Retrotechtacular: The Incredibly Difficult Task of Copying a Document
