Mold for biomimic materials such as agar or polyacrylamide to be used to model new surgical tools such bipolar forceps or ultrasonic aspirators. The T hole array is for temperature monitors such a thermocouples. The two holes on the side are for current monitors. The hole are designed with a taper so that they can be easily inserted but not removed.
Agar is easily made into a gel by mixing with water and then heating til boiling. To prevent it from solidifying it must be kept at ~90°C. It can cool to 45-50°C before pouring. For more info see: https://www.doane.edu/agar-and-plate-preparation.
Polyacrylamide is more difficult to prepare and is made by polymerizing acrylamide monomers and bisacrylamide. The polymerization reaction is initiated by ammonium persulfate (APS) and catalyzed by tetramethylethylenediamine (TEMED). For more info see: https://www.bio-rad.com/webroot/web/pdf/lsr/literature/Bulletin_6040A.pdf#10-1558_Electro_Guide_combined_FINAL3.indd%3APolyacrylamide%20Gels.
Before pouring the gel into the mold insert temperature and current monitors. An Arduino was used to record the data but was used as part of a senior deign project at Michigan Tech and cannot be shared.
H and H 3D Plastics PETG
Outside walls should be printed at 20 mm/s or slower to ensure the monitoring holes print cleanly. Was printed with a brim to improve bed adhesion.
May need to clean monitoring holes before wires can be inserted