API Test tube holder

API Test tube holder

Description

If you like my designs, hit the like button and post a picture of your print! I designed this rack to hold either 8 or 16 API test tubes. I needed something I could mount on my breeding rack to hold test tubes while testing, and to dry them. The holes are 15mm and API test tubes are 13mm, so there should be a little wiggle room. It should also work with any similar sized test tubes. There are angled holes in the bottom to allow for drainage to dry them after use (and after washing them). No spot for the caps on this version, might add a small box to the end(s) to hold caps on a future version. Mounting holes are size for a 1/8" screw or a M3 wood screw. Holes are not countersunk, so I recommend using a pan head or similar headed screw. UPDATE: I added two more designs, both with side tabs to reduce the risk of the mounting breaking at layer lines. Also added a side tab design with 16 spots for test tubes. The side tab designs should print on a 200x200 bed if rotated 45°. I also added a test model that can be printed off to see if it will fit your test tubes.

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