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by   -   October 28, 2016

We compared five adhesives for 3D printing applications on a Wanhao Duplicator i3. We’ll print a PLA (polylactide) cube, 1х1х1 cm in size.

1.  NELLY LACQUER: We spread it on the clean surface of the table and turn on the Print Mode. The printed model is very well stuck—a pallet-knife is needed to separate it from the surface of the table. The adhesion result is very good.

2.  THE 3D GLUE: We apply it to the table with a cloth, wait for the table to warm up, then start printing. The result is similar to Nelly lacquer. We can’t separate the printed model from the table without any tools. The bottom of the cube is smooth.

3.  PVA GLUE: We spread a small quantity on the table and let it dry before printing. It is not easy to tear the model from the table. The bottom surface of the cube is rather rough and has PVA glue stains.

4.  GLUE STICK: We try to apply a thin layer of it to the hot platform but, because the adhesive is very thick, we can’t do it using a microfiber cloth. To separate the cube from the platform we use a pallet-knife. The bottom surface of the model and the platform surface have white glue stains. Now we need to clean the table and apply an adhesive anew.

5.  STICKY TAPE (an analogue of a blue Scotch): Finally, we paste one layer of it to the table, carefully smoothing it out to avoid blistering. This adhesive is no good for big ABS models as they tend to break away from the table along with the tape.

We try to accurately separate the cube from the table to prevent the tape from peeling off, but part of the tape stuck too well to the cube and came off the table along with the model. Now we’ll have a naked spot (without the tape layer) on the table when we print next time.

Conclusions

  • The lacquer and 3D glue give the best results; the bottom surface of the printed models is clean and smooth, without any traces of adhesives.
  • The glue stick stains the models.
  • The Scotch tape tends to stick to the model and comes off from the table partially or fully.
  • For ABS printing we recommend using a closed 3D printer and a strong adhesive, like NELLY.

If you liked this article, you may also want to read these other articles on 3D printing:

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by   -   October 7, 2016

raheeb

Raheeb Muzaffar, an information technology specialist, has developed an application-layer framework that improves the transmission of videos between moving drones and mobile devices located at ground level. His work within the Interactive and Cognitive Environments (ICE) doctoral programme will be completed soon. Raheeb explains what makes this technology innovative and talks about his plans for the future in a conversation with Romy Mueller.

by   -   March 4, 2016
Photo courtesy We Robot 2015.
Photo courtesy We Robot 2015.

UPDATED 4 Mar: We’re sad to report that Professor Tony Dyson, who built the original Star Wars R2-D2 droid, has died. We’re reposting this excellent video of his keynote at WeRobot to highlight his contribution to the field of robotics and culture.

by   -   February 22, 2016

Last week Raffaello D’Andrea, professor at the Swiss Federal Institute of Technology (ETH Zurich) and founder of Verity Studios, demonstrated a whole series of novel flying machines live on stage at TED2016: From a novel Tail-Sitter (a small, fixed-wing aircraft that can optimally recover a stable flight position after a disturbance and smoothly transition from hover into forward flight and back), to the “Monospinner” (the world’s mechanically simplest flying machine, with only a single moving part), to the “Omnicopter” (the world’s first flying machine that can move into any direction independent of its orientation and its rotation), to a novel fully redundant quadrocopter (the world’s first, consisting of two separate two-propeller flying machines), to a synthetic swarm (33 flying machines swarming above the audience).

by   -   December 22, 2015

underwater_swarm_cocoro_robot_surfacestation_vision

Our penultimate video features the initial “Big Vision” trailer we produced at the beginning of this project. The video showcases the basic components of the robotic system we targeted (surface station, relay chain, ground swarm) and how we imagined our collective of underwater robots forming coherent swarms.

by   -   December 21, 2015

IIT_Holiday_Robot_Video_2015_iCubHave a holiday robot video of your own that you’d like to share? Send your submissions to info [at] robohub.org!

by   -   December 16, 2015

Brown_Rethink_Video_CompetitionAs the worldwide leader in collaborative robotics research and education, Rethink Robotics is excited to announce the winner of the inaugural Rethink Robotics Video Challenge. Launched in the summer of 2015, the Challenge was created to highlight the amazing work being done by the research and education community with the Baxter robot. With more than 90 total entries from 19 countries around the globe, the Humans to Robots Lab at Brown University was a standout in the criteria of relevancy, innovation and breadth of impact.

by   -   December 15, 2015
CoCoRo's humble beginnings.
CoCoRo’s humble beginnings.

Our underwater swarm research started in a few cubic centimeters of water with some naked electronics on a table. Over the next three and a half years, our swarm increased by a factor of 40, and the size of our test waters increased by a factor of 40 million as we went from aquariums and pools, to ponds, rivers and lakes, and finally ending up in the salt water basin of the Livorno harbour. Quite a stretch for a small project!

by   -   December 8, 2015

underwater_robot_cocoro_swarm

During the past year we have shown many swarm algorithms in various experiments. The spotlight was always on the Lily and the Jeff robots. However, there is now another star in the team and this trailer is dedicated to this special agent: the base station!

by   -   December 1, 2015

TYOC-48-52--Workshops---YouTube

Most of the videos from The Year of CoCoRo were shot during workshops we held throughout the project. These workshops, which were usually focussed on one or several specific demonstrators, were what drove our international team of collaborators to implement mechanical hardware, electronics and software into working installations. This form of workshop-driven development proved to be very successful, and by the end of the project we were able to show 17 working final demonstrators that show the versatility of robot swarms. 

by   -   November 24, 2015

TYOC-47-52--CEBIT---YouTube

In March 2014, we exhibited CoCoRo in Hannover, Germany at the CEBIT — Europe’s largest consumer electronics fair. At first we thought we might be out of place and that our exhibit would be overshadowed by the latest flatscreen TVs, smartphones and gaming consoles. We were very wrong: though we had the smallest booth, we were overrun with thousands of people throughout the week, and television and radio crews also stopped by for interviews. By our own estimates, we may just have had the highest rate of visitors per square meter in the whole fair.

by   -   November 20, 2015

Hello_World_PRENAV_Drone_MovieCheck out this great little film by drone startup PRENAV, which took home the LOL WTF prize at the Flying Robot International Film Festival last night. According to Nathan Schuett, CEO of PRENAV, the team was looking for a way to demonstrate precision drone flight in a visually appealing way. “We decided to try something that had never been done before – drawing accurate shapes, letters and animations in the sky with a drone – and we’re very pleased with how ‘Hello World’ turned out.” Fun stuff.

by   -   November 19, 2015
Credit:  ETH Zurich / Alessandro Della Bella
Credit: ETH Zurich / Alessandro Della Bella

In 21 countries across the globe, hundreds of people are preparing for Cybathlon 2016, where cutting edge robotic assistive technologies will help people with disabilities to compete in a series of races. This summer the Cybathlon practice session took place at the Swiss Arena in Kloten so that the teams could test out the courses. Watch the trailer for the rehearsal games!

by   -   November 17, 2015

TYOC-46-52--JeffShoaling---YouTubeThe EU-funded Collective Cognitive Robotics (CoCoRo) project has built a swarm of 41 autonomous underwater vehicles (AVs) that show collective cognition. Throughout 2015 – The Year of CoCoRo – we’ll be uploading a new weekly video detailing the latest stage in its development. This week’s video shows an autonomous swarm of underwater robots coordinating their motion to form coherent shoals.

by   -   October 30, 2015

starleth_quadruped_robot_bioinspiredStarlETH is a multi-purpose legged transporter robot developed at ETH Zurich’s Autonomous Systems Lab. Combining versatility, speed, robustness, and efficiency, StarlETH walks, climbs, and runs over varied terrain.





INNOROBO 2015 Showcase
May 29, 2016


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