Uploaded June 2025 | Updated September 2026, 2 weeks ago
In this video, I’m testing the elasticity of various 3D printing materials using a rubber rebound tester I recently purchased from China. I’ll first explain how this device works and how to use it properly—basically a short user manual. Then I’ll put it to the test with several 3D printed specimens.
Product link (not affiliate): hongtuoinstrument.com/rubber-compress-rebound-reslilience-tester-dh-rt-7835083.html
I tested multiple TPU filaments, including both softer and harder types, and experimented with different infill percentages and infill patterns. To provide some comparison, I also included more rigid materials like PLA, PETG, ABS, Nylon, PCTG, and PBT Pro.
Special thanks to my Patreon supporters! Their donations helped me buy this testing machine and keep these experiments going. 🙌
🔗 Support the channel on Patreon and get early access & extra data:
patreon.com/mytechfun
Let’s find out how bouncy these materials really are!
Polymaker, the channel sponsor: https://us.polymaker.com?aff=49&utm_source=affiliately&utm_campaign=aff
Chapters:
0:00 Introduction
1:45 About Rebound testing method
2:23 How to use the elasticity tester
4:00 Tested filaments
4:49 Test specimens
5:47 The testing
9:05 Results
9:37 Conclusions
In this video, I’m testing the elasticity of various 3D printing materials using a rubber rebound tester I recently purchased from China. I’ll first explain how this device works and how to use it properly—basically a short user manual. Then I’ll put it to the test with several 3D printed specimens.
Product link (not affiliate): hongtuoinstrument.com/rubber-compress-rebound-reslilience-tester-dh-rt-7835083.html
I tested multiple TPU filaments, including both softer and harder types, and experimented with different infill percentages and infill patterns. To provide some comparison, I also included more rigid materials like PLA, PETG, ABS, Nylon, PCTG, and PBT Pro.
Special thanks to my Patreon supporters! Their donations helped me buy this testing machine and keep these experiments going. 🙌
🔗 Support the channel on Patreon and get early access & extra data:
patreon.com/mytechfun
Let’s find out how bouncy these materials really are!
Polymaker, the channel sponsor: https://us.polymaker.com?aff=49&utm_source=affiliately&utm_campaign=aff
Chapters:
0:00 Introduction
1:45 About Rebound testing method
2:23 How to use the elasticity tester
4:00 Tested filaments
4:49 Test specimens
5:47 The testing
9:05 Results
9:37 Conclusions
