Omnipod syringe to insulin vial coupler (TPU)

by danns87

The couplers in the image were printed on an MK4S using SainSmart Shore 95A TPU. This type of TPU is flexible enough to wrap around the opening of the vial (tip: insert the vial into the coupler at an angle), but firm enough to hold it snugly in place. In PrusaSlicer, I just used the SainSmart TPU filament profile and it printed great (0.2mm STRUCTURAL print settings). Print upright like in the picture; no supports needed.