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this post was submitted on 11 May 2026
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3DPrinting
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You need a silicone based resin. TPU based are 65A or stiffer. Stratasys or Formlabs make these down to 25A, but they are expensive. Very difficult to print most shapes as the print inherently sags. They print very slow, 30 second first layers.
Spool3D elastic is 40A and inexpensive.
https://spool3d.ca/spool3d-elastic-resin/