Heat up these print beds, the weekend is right here! Meaning it’s time to extrude some filament within the pursuit of some thrilling new 3D printing initiatives. This week’s initiatives all depend on further components from elsewhere, however there’s loads of worth available from them.
PET filament recycler
What if you happen to may make your individual filament from plastic bottles? With a PET filament recycler, you possibly can! Most shiny clear drink bottles are made utilizing PET because it’s robust, food-safe, and considerably recyclable. You may reuse it your self at house by turning it into filament for 3D printing.
There are a number of good PET filament recycling initiatives accessible, however Petamentor2 appears to be some of the superior. Venture writer Ondřej Šraitr has revised his authentic design with the assistance of the group, making a mechanism that slices, melts, and turns plastic bottles into usable filament.
The machine cuts bottles into strips, feeds the strip right into a heated nozzle, reshapes the filament, after which winds it round a spool in order that it’s prepared for 3D printing. Ondřej says that you simply don’t want an excessive amount of talent to construct the machine, with no programming crucial. A lot of the work is printing and assembling components, then connecting the varied parts along with wires.
The invoice of supplies features a 12V/10A energy provide, a number of 12V DC motors, a PWM regulator, a 6mm DC motor shaft couple, bearings, a heatblock and heater, switches, a nozzle, brackets, screws, rods, and a thermocontroller. Every part else is 3D printed, and there’s a full video tutorial accessible that will help you put the Petamentor2 collectively.
Different choices embrace the PET Filament Mini Manufacturing unit by Thingiverse person PrintForge2, and the identical writer has separate initiatives for a filament extruder and hand-cranked PET strip cutter if you happen to’d quite go that route.
Disposable lens mounts for Lomography
Credit score: Kieks / MakerWorld
Do you bear in mind the lomography craze of the late 2000s and early 2010s? Cameras just like the Holga 120N and Diana turned objects of want as a result of flawed and unpredictable fashion of images they captured. Whereas capturing on movie is a crucial a part of this aesthetic, so too are the optics.
Cameras coveted by the Lomography crowd often use plastic lenses, which supply washed-out colours, mushy focus, and visible artifacts that almost all photographers would take into account undesirable. There are numerous smartphone apps that try to copy this look, however one other manner you possibly can obtain it’s by mounting one among these lenses on a contemporary digicam.
That’s the place initiatives just like the Sony E-mount disposable lens mount, Studio Fabi’s Retrolens venture, and Canon RF V-Lens initiatives are available. They permit you to take a set aperture and focal size lens from a disposable digicam and mount it on a contemporary mirrorless or digital SLR.
A search on MakerWorld for “disposable lens” yields tons of of outcomes, for all kinds of cameras, with loads of person reviews and pattern photos. Simply do not forget that there’s no adjustable focus or aperture, and that embracing the imperfections is all a part of the attraction.
A fantastic offline vintage-style radio
I’ve adopted this vintage-style offline music participant venture for quite a few months on YouTube, and it’s been fascinating to look at it evolve. The venture is the work of Zion Brock and initially began life as a canopy for a wise speaker, earlier than morphing into an offline media participant with an emphasis on simplicity.
What stands out concerning the design is the attractive retro aesthetic, whereas on the coronary heart of the venture is a breadboard, microcontroller, MP3 participant chip, and amplifier. There are two “buttons” to fret about: a quantity knob that additionally turns the radio on or off, and a button on prime of the machine to skip songs. Music is saved on a microSD card contained in the machine, whereas energy is delivered through USB-C.
Maybe essentially the most inspiring factor about this venture is the dedication that the writer confirmed to creating new strategies to enhance the design. This consists of dabbling in thermoforming for the primary time, the place 3D-printed components are heated till mushy and molded utilizing a information. This provides the speaker grill the phantasm of material that’s been stretched, like an actual radio.
You could find the total construct information on Zion Brock’s web site, with extra details about licensing the radio for industrial sale, the venture’s roots in service of simplicity, and a tip jar for displaying your help. There’s even a Discord you possibly can be a part of, the place group members have contributed their very own experience and concepts in service to enhance the venture.
On the lookout for a unique radio venture to get caught into this weekend as a substitute? How-To Geek’s Joe Fedewa turned a Google Residence Mini and Android smartphone right into a retro-style radio.

