The Year of Rat with Fillamentum January 25 2020
The year of Rat is here. Rat is the first of all zodiac animals, according to a legend. He is seen as a sign of wealth and prosperity.
The Lunar New Year is one of the most popular holidays around the globe and the most important Chinese holiday. We have decided to celebrate this occasion ľwith a small project print. This cute Rat is perfect for a weekend project that might bring you luck a fortune into the New Lunar Circle.
Pneumatic Screwdriver by Vincent Groenhuis January 10 2020
By developing and publishing practically usable designs, we can show that 3D printing can be part of everybody's life where the production is actually met by demand. Vincent Groenhuis is a researcher at Robotics and Mechatronics, University of Twente, in the Netherlands. He developed this Pneumatic Screwdriver with the hope of making DIY pneumatics more popular in the 3D printing community.
"I myself enjoy developing all sorts of 3-D printable pneumatic devices," Vincent explains. As a research project at first and later also as a hobby, he first created the R-52 and R-66 pneumatic rotary engines. To make these engines usable next step had to be building a casing with a handle and controls around it, creating the Pneumatic Screwdriver.
Working on a highly technical project like this also poses many unforeseen challenges. "On the technical side, I gained useful experience in, for example designing gearboxes and how to efficiently combine a throttle lever with a direction valve inside a small volume," Vincent explains.
He learned that starting with a simple design that does the job is more effective than jumping head-on into a very complicated design that may take way too much time to make it actually work.
Vincent's direct goal was to develop a pneumatic screwdriver that is not only sufficiently compact and powerful but can also be built using current-day 3D printers while using a minimum of external parts. This screwdriver does not drive the screw too fast and can be an easy used in practical screw-driving tasks.
"I myself call this mission a success!" Vincent says with excitement. "I made two functional pneumatic screwdrivers. The one with the bigger motor (R-52) works best. I hope it lasts for a long time before breaking down. A future improvement would be the inclusion of dual-speed gear transmission allowing drilling applications."
The whole Pneumatic Screwdriver was printed in PLA Extrafill with the minimal additional items. For a mechanical print like this, PLA is an unusual material choice. However, for Vincent, this was an ideal option."PLA is easy to print and good enough for many mechanical applications. If a specific part ever breaks down, then I usually prefer to re-design the model rather than pushing the material limits by using a different material," he explains. Using PLA Extrafill Vertigo Starlight for the bodywork, Gold Happens for the bodywork details, Rapunzel Silver for the gears and Everybody's Magenta for the throttle and direction switches. This resulted in a neat, unique look.
We asked Vincent why did choose the Fillamentum filament and a PLA for technical print such is this "Fillamentum filament look good especially the metallic (Pearl) ones. It definitely gives the model some added value. I also have a multi-material printer, and it turns out that the Fillamentum (metallic) PLA filament consistently allows for reliable automatic color changes using just stock settings in the slicer," Vincent explains.
Get the Pneumatic screwdriver model on Vincent's and the Pneumatic Rotary Engine also on his Thingiverse. You can find there all the assembly and technical information.
PLA Extrafill Vertigo Starlight: bodywork (most layers)
PLA Extrafill Gold Happens: bodywork details (switch filament during printing: between 2.5 and 3.5 mm and between 26.5 and 27.5 mm)
PLA Extrafill Rapunzel Silver: gears (including bit holder), spring for the throttle return
PLA Extrafill Everybody's Magenta: throttle and direction switches
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RC car Landy 4×4 by 3DSets November 22 2019
Landy 4×4 Pickup by 3DSets is a 3D printable RC car inspired by the Land Rover 4×4 Pickup. This model is approx. 45 cm long (1:8 scale) and ready for your RC (Radio-Controlled) equipment. It has enough power to drive in terrain and is slow enough that the model is suitable for kids.
„Print, Build, Enjoy!“ is a 3DSets motto, this studio based in the Czech republic created this project in response to the ever-expanding hobby sector of 3D printing. A duo of designers Ondřej Slavík and Jiří Lorenčík spent about one year of their free time to develop their first RC car. They always dreamt of creating and offering something digital that would allow them to sell the product around the world while maintaining high quality. Now they have customers from every corner of the world. The first customer was from Mexico, the next one from Indonesia and Bali. Most customers, however, come from the Czech Republic, the USA, and Germany.
Landy 4x4 has all the fully-functional details based on a real car. Opening doors, hood, trunk, and other smaller features such as door handles, windshield wipers, side mirrors, including complete interior parts like floor mats! Even the body panels have gaps spaced like the actual car.
“Don't buy parts - just print nearly all of them! You can print most of the pieces starting with bodywork, complete chassis, even Cardan joints, and gearbox. To complete the car, you can buy a motor, radio control electronics, tires, and dampers. Then you are ready for a ride.“ says Ondřej. Even repairs are easy. Just loose a few screws and exchange broken parts. And drive again, almost instantly!
„Many people enjoy the assembly process the most. That's why the assembly sequence is created in the way that they can continue assembling the model during the printing of other parts.“ Ondřej explains.
3DSets offers a complete package, including the 3D printable model and instructions on how most effectively print and build your car with references and links where to get non-printable parts and 3D printing materials to make the building as efficient as possible.
This is how you make your own Landy 4x4 in 4 steps:
1. Gather all the parts you need
a) The model with instructions by 3DSets
b) non-printable parts
c) 3D printing materials
PLA Extrafill „Turquoise Blue“
PLA Extrafill „Traffic White“
PLA Extrafill „Vertigo Grey“
PLA Extrafill „Traffic Black“
Lights and small accessories:
PLA Extrafill „Rapunzel Silver“
PLA Extrafill „Crystal Clear“
PLA Extrafill „Chocolate Brown“
3D Printed Violin by Bence Balogh November 08 2019
With a BSc degree in Mechatronics Engineering and a Master's degree in Economics, Bence Balogh found a new love for something unusual. As he participated in the Conference of Scientific Students' Associations in the subject of "Examination of 3D Printing Parameters on the products mechanical properties," he found an interesting topic by HovaLabs, an open-source project, the 3D printable acoustic violin.
"I used to learn how to play the piano and the classical guitar for many years, and I also tried playing the violin. Unfortunately, my violin career only lasted for about a month. I was fascinated by the grace of the violin, and I adore when someone is playing it professionally. It became a must to make one in order to test the connection between 3D printing and music," Ben explains.
"The original Hovalin was amazing, so I consulted with several musicians, especially prime violinists. They gave me useful tips about how to improve and develop the model. It became my obsession to create the violin as realistic as I could, based on the Hovalin and the recommendations by the professionals. I am really satisfied with the result so far. However, I am still working on details and collecting feedbacks for further improvements. The 3D printed violin is an instrument, ornament, and something spectacular," says Ben with excitement.
In the beginning, Bence used basic PLA for the prototyping as it is the most common material that's also very easy to use. He had to make a few alternations regarding the bridge, as the strings were too strong and broke the original bridge made of PLA. He decided to use CPE for the neck and bridge because of the strain and holding capabilities. In the end, the body of the violin is constructed from PLA Crystal Clear "Smaragd Green", and the neck with the bridge is made from more rigid CPE HG100 "Iced Green Transparent". Full bodies took 40-50 hours to print on the Creality CR10S. Even with the lower resolution, it took 20-30 hours with few iterations. This project was very time-consuming.
"Many of my friends who play the classical violin helped me, so I learned a lot about the soul, body, and the creation process of a violin. On the other hand, I deeply absorbed 3D printing, maintenance knowledge, 3D design, and remix skills. The most important was to have the patience for this project and the ability to learn from my mistakes. My main goal was to bring 3D printing, music, and people closer together and to challenge myself. Whenever I show the 3D printed violin to people, I see the pure joy and curiosity on their faces, and I think this is the real achievement," Ben tells us. With the help of Stella Nagy, he was able to take breathtaking pictures in The Palace of Music in Miskolc, Hungary.
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