AntTech 17mm Test Tube Cap

The AntTech 17mm Test Tube Caps are here!

These are my 17mm outer diameter test tube caps. The are designed for a 17mm plastic test tube with a 14mm inner diameter. There are various versions. I designed them so that I could plug my various tube sizes directly into test tubes depending on the size ant I have in them. They fit tight and might even microcrack your testubes at the very tip but nothing that will damage the overall integrity of the test tube. I have tested these at length and they've never damaged any test tube beyond use.

There are caps both with and without feet for each of the following three tube sizes: 1/2", 3/8" and 3/16"
Every cap is annotated directly on the cap with the size tubing it fits. This makes them easy to identify both before and after printing.

Additionally there is a double and triple gate for both the 1/2" tubing and the 3/8" tubing. These allow you to connect multiple test tubes to a single port that can then be connected to the associated tube size. I've also provided a test tube divider insert (you may have to file or reduce the size if your test tubes narrow at all - I may also revise this design later). There is also a 1/2" cap that has a feeder attached with 2 chambers, one large for proteins, and one small, with a small pipe wide enough (1.5mm width) to fit a syringe through so that you can refill a small sugar basin without removing your cotton. The feeder cap only comes as a 1/2" with feet.

Additionally, these caps pair quite nicely with my test tube outworld found here:
https://www.thingiverse.com/thing:6014960

Thanks from AntTech!