Tessa’s Weekly Picks – Resin 3D Printing

2021-04-09

Tessa Blokland  

volvo1_900x600_CR

Resin 3D printing is an additive manufacturing technology that cures liquid photopolymers layer by layer into a solid object. The liquid resin changes into a solid material when subjected to light, such as UV or laser. With the examples mentioned below, I would like to show the advantages of SLA from the most commonly known 3D printer manufacturing companies specialized in resin 3D printing.

The 3D printed adaptive gripper from advanced logistics company Bastian Solutions needed to be agile enough to pick up any product from the shelf, strong, and yet flexible. Meeting all of the mechanical requirements, Carbon‘s EPU 40 resin ticked all the boxes. The elastomer can bend, is highly elastic, tear-resistant, energy damping, and doesn’t lose its shape. For other parts on the gripper, Bastian Solutions replaced most of the metal parts with polymer parts, decreasing the total weight of the machine, helping it conduct less overall heat (compared to metal), and requiring less energy to cool.

Another advantage of using resin 3D printing is the high speed and precision of the models. In an architectural project, details can change rapidly. With digital formats, it is easier to adjust to the changes and to quickly 3D print a new model. Another advantage of the Formlabs resins which the model makers of Renzo Piano Building Workshop are using is that once printed, the 3D printed models are very easy to sand. The model makers at this architectural office also use 3D printing for intricate parts like stairs and trees, which would be time-consuming to manufacture by hand.

Resin 3D printing is not only used for models, but also for mock-up parts for test environments, as in this example of a 3D printed water pump (also top image) of Volvo Construction Equipment (VCE). The company decided to 3D print the prototype on a Stratasys Objet Eden260V with FullCure 720 resin. The 3D printed part passed all the tests. Normally the tooling cost for a project like this would have cost approximately $9,090, with the part cost around $909. The lead time for producing the prototype would have been 20 weeks minimum. Thanks to 3D printing the prototype only cost $770 and took only two weeks, including both design and development.

Resin 3D printing is used for great detailing, smooth surfaces, and speed. In the world of props, animated characters, and more for films, and movies, time is precious. To meet the budget, deadlines, and quality requirements for the production of stop motion comedy SuperMansion, Stoopid Buddy Stoodios turned to resin 3D printing, using EnvisionTEC‘s Perfactory 4 DSP XL and Pro Gray resin, ensuring highly accurate, functional, and durable prints.

The last resin example is a 3D printed high-temperature resistant stator for testing and uses in high heat environments. The used material, Figure 4 HI TEMP 300-AMB from 3D Systems, is suited in applications including HVAC, consumer appliances, motor enclosures, stators, molds, and the like.
LEO Lane_Weekly Pick_3DPrinted Resin

Each of Tessa’s weekly picks is a curated group of 3D printed designs, based on the week’s chosen theme. If you would like to offer a theme for Tessa, or if you have your 3D printed weekly picks you would like to see featured, please let us know by commenting below. Subscribe to the newsletter to get the latest weekly picks every week in your mailbox.

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