Extended feed inlet (tee)

This is the extended feed port (tee) for A1/A1mini. When using AMS lite and then wanting to connect an independent spool holder for feeding, it usually requires unplugging the PTFE tube of the AMS and replacing it with the PTFE tube of the independent spool holder. This is very troublesome. So I looked for a suitable tee to solve this problem. I tried printing some models online, but none were very satisfactory (maybe I'm a bit of a perfectionist). So I designed this tee myself. After several revisions and iterations, I feel quite satisfied now. I think it has the following advantages:The structure is relatively simple, with a straight main pipe, and the feed does not directly contact the tee, resulting in very little friction.The branched pipes use spline curves to ensure smoothness, with a slight amount of friction, but actual tests show no issues.The connections are also quite reliable; once several pipes are inserted, they are relatively tight and not easy to come off.They are