4-Way Interlocking Tube Rack

myminifactory

When conducting experiments in a lab, you'll often need to use various sizes of tubes. A fundamental piece of equipment is a tube rack that can hold multiple specimens, and one with multiple size options is an essential item. These simple lab tools can cost $10 or more depending on the supplier, but a 3D-printed alternative is just as effective at a significantly lower price. This particular design was inspired by a $15 version found elsewhere. The cost to print these racks in PLA is approximately $2.