When one of your design goals for a 3D printer is “fits through standard doors,” you know you’re going to be able to print some pretty big stuff. And given that the TAUT ONE printer by [Nathan Brüchner] could easily be mistaken for a phone booth, we’d say it’ll be turning out some interesting prints.
The genesis for this beast of a printer came from the Before Times, with the idea of printing a kayak. [Nathan] leveraged his lowdown time to make it happen, going through three prototypes. Each featured a print bed of 1,000 mm x 550 mm with 1,100 mm of Z-height, and the overall footprint fits a standard Euro-pallet. It uses a CoreXY design to move the dual-filament hot end, which has ducting for taking cooling air from outside the cabinet. And the machine has all the bells and whistles — WiFi, an internal camera, filament sensors, and a range of environmental controls.
In a nod to making it easier to build, [Nathan] kept all the custom parts either laser cut or 3D-printed — no mill or lathe required. He also points out that he used only quality components, which shows in the price — about 3,000€. That seems like a lot to be able to print kayaks that you can buy for fraction of that amount, but we certainly appreciate the potential of this printer, and the effort that went into making it work.
You can’t argue with the results of large-format film cameras — picture the boxy bellows held by a cigar-chomping big-city press photographer of the 1940s — but they don’t really hold a candle to the usability and portability of even the earliest generations of 35mm cameras. And add in the ease-of-use features of later film and digital cameras, and something like a 4×5 Graflex seems like a real dinosaur.
Or maybe not. [Aleksi Koski] has built a large-format camera with autofocus, the “Conflict 45.” The problem with a lot of the large-format film cameras, which tend to be of a non-reflex optical design, is that it’s difficult or even impossible to see what you’re shooting through the lens. This makes focusing a bit of a guessing game, a problem that [Aleksi] addresses with his design. Sadly, the linked Petapixel article is basically devoid of technical details, but from what we can glean from it and the video below, the Conflict 45 is a 4″x5″ sheet-film camera that has a motorized lens board and a laser rangefinder. A short video has a through-viewfinder view showing an LCD overlay, which means there’s some kind of microcontroller on board as well, which is probably used for the calculations needed to compensate for parallax errors during close focusing, as well as other uses.
The camera is built from 3D printed parts; [Aleksi] says that this is just a prototype and that the finished camera will have a carbon-fiber body. We’d love to see more build details, but for now, we just love the idea of an easy-to-use large-format camera. Just maybe not that big.
With a quarter-century of more of consumer digital cameras behind us, it’s easy to forget that there was once another way to see your photos without waiting for them to be developed. Polaroid Land cameras and their special film could give the impatient photographer a print in about a minute, but sadly outside a single specialist producer, it is no longer a product that is generally available. [The Amateur Engineer] sought an alternative for a large format camera, by adapting a back designed for Fuji Instax film instead.
Lomography, the retailer of fun plastic cameras, had produced an Instax back for one of their cameras, and to adapt it for a Tachihara large format camera required a custom 3D-printed frame. Being quite a large item it had to be printed in three pieces and stuck together with epoxy. Then a series of light leaks had to be chased down and closed up. The result is a working Instax back for the camera, which appears to deliver the photographic goods.
We’ve seen a few digital backs for larger cameras produced with scanners, but we rather like this linear CCD one.
It’s possible to have an enjoyable weekend touring a city with a stolen cardboard cutout from some advertising display or other. However, it’s 2019, and 3D printing means you can go so much further. [Simon] of RCLifeOn went so far as to print a lifesized body double of himself, and it’s only slightly creepy! (Video, embedded below.)
The model was sourced from a 3D scan [Simon] had done with commercial hardware. An Optimus P1 industrial-grade 3D printer was used to print the parts, with total printing time being around 200 hours. Adhesive was used to join the various segments together, and the assembly was then sanded and primed, ready for paint.
Unwilling to tackle the task alone, [Simon] enlisted a professional painter to help put the finishing touches on the piece. The end result is impressive, particularly from a distance. [Simon 2.0] was then sent out to the city centre, aiming to raise money from bewildered passers by.
We suspect the market for custom body doubles will only increase as the technology to create them becomes more widespread. If you’ve tackled a similar project, be sure to let us know. Video after the break.
Large format photography gives a special quality to the images it produces, due to the differences in depth of field and resolution between it and its more modern handheld equivalents. Projecting an image the size of a dinner plate rather than a postage stamp has a few drawbacks though when it comes to digital photography, sensor manufacturersdo not manufacture consumer products at that size.
[Zev Hoover] has created a large format digital camera, and is using it not only for still images but for video. And it’s an interesting device, for the way he’s translated a huge large-format image into a relatively small sensor in a modern SLR. He’s projecting the image from the large-format lens and bellows onto a screen made from an artist’s palette, a conveniently available piece of bright white plastic, and capturing that image with his SLR mounted beneath the large-format lens assembly. This would normally cause a perspective distortion, but to correct that he’s mounted his SLR lens at an offset.
He does point out that since less light reaches the camera there is also a change in the ISO setting on the camera, but once that has been taken into account it performs satisfactorily. The result is a camera that allows something rather unusual, for Victorian-style large-format images to come to life as video. He demonstrates it in the video below, complete with friends in suitably old-fashioned looking steampunk attire.
After 20 or so years of development, digital cameras may soon be superior to film in almost every way, but there are a few niches where film cameras reign supreme. Large format cameras, for example, are able to produce amazing images, but short of renting one for thousands of dollars a day, you’ll probably never get your hands on one. For his entry to The Hackaday Prize, [Jimmy.c..alzen] decided to build a digital large format camera, using an interesting device you don’t see used very often these days – a linear CCD.
[Jimmy]’s camera is built around a TAOS TS1412S, a linear CCD that is able to capture a line of light 1536 pixels across. The analog values are clocked out from this chip in sequence, going straight into an Arduino Due for processing, saving, and displaying on a small screen.
Inside the camera, the sensor is on a pair of rails and driven across the focal plane with the help of a stepper motor. The effect is something like the flatbed scanner to camera conversions we’ve seen in the past, but [Jimmy] is able to adjust the exposure of the camera simply by changing the integration time of the sensor. He can also change the delay between scanning each column of pixels, making for some really cool long-exposure photography techniques; one side of an image could be captured at noon, while the other side could be from a beautiful sunset. That’s something you just can’t do otherwise without significant digital manipulation outside the camera.
The project featured in this post is an entry in The Hackaday Prize. Build something awesome and win a trip to space or hundreds of other prizes.