Manual Supports for 3D Printing
MakerSpace devised a clever method for 3D printing an RFID card holder with a slot for the card and recesses for the RFID antenna. Instead of using traditional supports in the slicer, they took inspiration from sand casting to create a reusable “core” using PETG. This core serves as a support for future prints using PLA.
During printing, the printer lays down the first few layers and then pauses, allowing the core to be inserted. After the core is in place, the print resumes, resulting in a finished product with recesses for the RFID antenna and a slot for the card. To ensure easy removal of the core, a glue coating serves as a release agent, preventing the PLA from sticking too tightly to the PETG.
Additionally, the core is designed slightly larger than necessary, with a tab for easy taping to the bed and removal from the PLA print. The end result is a well-printed RFID card holder with precise features and smooth surfaces, demonstrating a creative approach to 3D printing challenges. This innovative technique opens up possibilities for revisiting past projects and exploring new ones with improved results.
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