Fig. 1. Tethers Unlimited’s recycling and reuse technology for 3D printed materials^［12］

Fig. 2. Microstructure characteristics，recycling mechanism，and recycling processes of continuous fiber 3D printing^［27］

Fig. 3. Comparison of the mechanical properties of CF/PEEK composites before and after recycling^［27］

Fig. 4. Forming mechanism，forming devices，and samples of 3D printed CFSRCs^［29］

Fig. 5. Mechanical properties and tensile failure microstructures of 3D printed PPS CFSRCs^［29］

Fig. 6. Recycling and reuse strategy and equipment for self-reinforced composites ^［29］

Fig. 7. Mechanical properties of the PPS matrix，CFSRCs，and recycled composites^［28］

Fig. 8. Comparison of the microstructures of PPS matrix，CFSRCs，and recycled composites^［28］

Fig. 9. Space 3D printing of continuous fiber reinforced composites^［30］

Fig. 10. Full lifecycle space recycling and reuse strategy for 3D printed continuous fiber reinforced composites^［28］