This micropipette is designed for serious measuring, and fits universal 1 ml pipette tips. You could read the scale on the syringe, or use pure water and a microbalance for farther adjustment. It has an original designed eject button.
To assemble this, you need following components apart from the printed parts:
- a 3 ml plastic syringe with luer taper(screw locker)
- a rubber band, Φ=16 mm or about, size #8 or #9 will work.
- a silicone or rubber tube, outside 6 mm × inside 4 mm × 5 mm
To assemble this, you still need something could drill holes at the plastic syringe, and some normal white glue. As the figs:
- Assemble the gears. The groove of the bottom part should be screwed to horizontal.
- Install the rubber band. It will exactly fits the groove.
- Take the syringe plunger off and drill 4 holes at the handle. Fix it to the previous parts at the rubber band.
- Fix the previous parts with the outer case, then install the syringe tube.
- Assemble the last 2 parts and the silicone tube, then searing the lure taper with some white glue. Assemble the last parts into the lure taper to complete the pipette.
- Designed for no support printing.
- There are many threaded parts in this design, please make sure your machine could deal with threads easily.
- The part 9 and part 10 may needs different size compensation in your slicer software than others, for fit to standard products preciously.
- You may want to print the part 9 first and check if it fits pipette tips perfectly.
- For the tested product, all white parts are printed with PLA, and red parts are printed with PETG.
- I'm going to make a module for 200 μl tips with a 1 ml syringe, later.
- This design have considered to use a spring as the elastic source; I have yet to get a spring to test, though.
Parts 1~8: xy size compensation(slic3r) = -0.13
Parts 9~10: xy size compensation(slic3r) = -0.07