Practical Enclosure Design, Optimized for 3D Printing

[3D Hubs] have shared a handy guide on designing practical and 3D printing-friendly enclosures. The guide walks through the design of a two shell, two button remote control enclosure. It allows for a PCB mounted inside, exposes a USB port, and is optimized for 3D printing without painting itself into a corner in the process. [3D Hubs] uses Fusion 360 (free to hobbyists and startups) in their examples, but the design principles are easily implemented with any tool.

One of the tips is to design parts with wall thicknesses that are a multiple of the printer’s nozzle diameter. For example, …read more http://pje.fyi/PF89k1

Paul Jacob Evans

Josef Prusa: Multi Material Extruders for Amazing Color Prints

The Prusa i3 Mk 2 is the hotness in consumer-grade, quality 3D printing right now. And things just keep getting more interesting. We caught up with Josef Průša at Maker Faire Bay Area this weekend to see the multi-material extruder in its final form. It’s an upgrade to the Mk 2 which allows a single hot end to print in four different materials, be it different colors or different types of filament.

A Bit of History

Jo has a reputation for turning out some of the most clever and dependable design improvements to 3D printers. Just one year ago he …read more http://pje.fyi/PDZPRS

Paul Jacob Evans

Everything’s a Touch Surface with Electrick

Touch screens are great, but big touchscreens are expensive and irregular touchscreens are not easy to make at all. Electrik is a method developed by several researchers at Carnegie Mellon University that makes almost any solid object into a touch surface using tomography. The catch is that a conductive coating — in the form of conductive sheets, 3D plastic, or paint — is necessary. You can see a demonstration and many unique applications in the video below. They’ve even made a touch-sensitive brain out of Jell-O and a touchable snowman out of Play-Doh.

The concept is simple. Multiple electrodes surround …read more http://pje.fyi/PBzvgJ

Paul Jacob Evans

Self-assembling Polymers Support Silicone 3D Prints

We all know what the ultimate goal of 3D printing is: to be able to print parts for everything, including our own bodies. To achieve that potential, we need better ways to print soft materials, and that means we need better ways to support prints while they’re in progress.

That’s the focus of an academic paper looking at printing silicone within oil-based microgels. Lead author [Christopher S. O’Bryan] and team from the Soft Matter Research Lab at the University of Florida Gainesville have developed a method using self-assembling polymers soaked in mineral oil as a matrix into which silicone elastomers …read more http://pje.fyi/PBymqJ

Paul Jacob Evans

Monoprice Releases Their Mini Delta Printer (On Indiegogo)

Around this time last year, Monoprice quietly unveiled a small, $200 3D printer. At the time, a fully functioning printer at this price point wasn’t unheard of. A good 3D printer at this price point was. It turned out this printer was actually fantastic and completely changed the value proposition of desktop 3D printers.

In the year since the release of the MP Select Mini printer, Monoprice has been hard at work bringing costs down, reworking designs, and creating an even less expensive printer. Now, it’s out. It’s available for pre-order on Indiegogo right now. Is this still a $150 …read more http://pje.fyi/PB5Mry

Paul Jacob Evans

Transparent 3D Printing?

Transparent plastic is nothing new. However, 3D prints are usually opaque or–at best–translucent. [Thomas Sanladerer] wanted to print something really transparent. He noticed that Colorfabb had an article about printing transparent pieces with their HT filament. [Thomas] wanted to try doing the same thing with standard (and cheaper) PETG, which is chemically similar to the HT. Did he succeed? Watch the video below and find out.

You can get lots of clear plastic filament, but the process of printing layers makes the transparency turn cloudy, apparently mostly due to the small gaps between the layers. The idea with the HT …read more http://pje.fyi/P8dqN3

Paul Jacob Evans

Another Printer With An Infinite Build Volume

Very rarely do we see a 3D printer that is more than just a refinement of what’s currently standard practice. [Prusa]’s single-hotend, four-color printer makes the list, but that came out a while ago. The novel 32-bit controller board found in last year’s $200 Monoprice printer has the potential to change a cottage industry. Save those two exceptions, innovation in 3D printing really isn’t seeing the same gains we saw in 2010 or 2011.

A company out of the Netherlands, Blackbelt 3D, is bringing out the most innovative 3D printer we’ve seen since last March. It’s an infinite volume 3D …read more http://pje.fyi/P8Hjzl

Paul Jacob Evans