As some of you have read already, I had printed up some useful pieces for 18 X 150mm test tubes.
I can print pieces up readily on demand, but the pieces involving acylic take more time. Here is what I will be making more of:
I have test tube caps to .5 Outer diameter caps (for vinyl tubing), test tube racks with slots for a heat cable, and the chamber piece made with acrylic.
I have about 8 of them in the works, and want to sell the whole setup for $35 each. If you are interested, post here, else I will them up on amazon, but I have to increase the price there because they charge quite a bit in referral fees. Oh yea, I expect the post office to charge $5-7 shipping. I do plan on making some changes for the better.
If you only want certain parts, let me know, I can make them for you.
Here is a link to the topic where there is a fuller explanation of it.