I printed both V3 and V4 of this model. For the V3 version I also printed the collets from: https://makerworld.com/en/models/672203-the-diyfinitive-ptfe-collet#profileId-600030 For V4 I used the PC4-M6 connectors from: https://makerworld.com/en/models/2172876-pc4-m10-and-pc4-m6-bambu-ptfe-tube-connector#profileId-2356954 I did have to modify the PC4-M6 model to make the size of the nut small enough to fit all 5. V3 with the 3d printed collets seem to be holding the PTFE tube tighter than the printed PC4-M6 connectors, however that could also be me not wanting to tighten the nuts of the connectors very tight and risk snapping them. I haven't been able to use the part yet as my A1 hasn't arrived yet, but from just sliding filament through each one I feel like there is less resistance on V3 than V4. I imagine that could be due to a number of different reasons, but I'm fairly positive that both with work. Once I get the A1 I'll be sure to test both out and see how they perform.

Awesome Model printed in Bambu Hot pink, Sunlu Transparent Red, eSUN fire engine red, and Sunlu White pla. Finally got to use the rechargeable Tea lights i got from amazon.

I noticed in a previous comment that there seemed to be an issue with how much the chain can come together with these clips so I Printed in Polymaker Polylite ABS at 60% (3mm wide) and 80% (4mm wide) scale of the z axis only. 60% seemed way too loose, however after about 2 hours of printing nothing came loose or popped off. 80% seemed much more stable. I can see how it may limit how much motion the chain has to make tight a tight radius. Just started a 4+ hour print. I'll post back if i have any issues. You can see in the picture the size difference between the 60% and 80% width.

First time printing with an 8mm nozzle. Came out pretty well. Still need to adjust temp and some other things, but not bad for a first try. Model is amazing as always

Printed great in PLA. Used in conjunction with https://makerworld.com/en/models/2344003.