The linear rail and the bearings system are also directly translated from the 3D printing motion to the syringe pump motion. And in this case, if the wheel pressure is properly calibrated to the extruded aluminum frame, there are no possible failures. As shown in the build instruction, we screw all the 3D printed parts on the frame and checked that there was no loose movement. With this set-up we managed to reproducibly deliver 10 µL of water using a 1 mL syringe pump. We repeated the command 10 times, using an analytical balance to weight the delivered liquid. We measured an average of 10.4 mg with an error of +/-0.3 mg, which is indistinguishable from the error of the analytical balance used. The amount of delivered liquid, as explained in the previous section, is dependent on the steps per mL, and this can be finely tuned using an analytical balance and changing the values in the command M92. Another important thing is not only the amount of liquid delivered, but the flow stability. This is especially interesting in microfluidics, where the flow at low speed, should be as stable as possible.