This repository is associated with the research collaboration program between Imperial College London and Institut Teknologi Bandung in the field of affordable medical devices based on soft robotics.

The degassing process is one of the essential processes in silicone moulding to eliminate entrapped air and remove bubbles from the silicone. For large capacity (e.g. 5 gallons), the degassing process typically uses a vacuum pump and vacuum chamber to reach -29 inHg or -1 bar, as in the following example from smooth-on ¹. However, a vacuum pump is relatively expensive for the small capacity (e.g. 10 - 20 ml) of silicone moulding, with an estimated price of around £1100. Therefore, to resolve the problem with the vacuum pump, this repository will show the tutorial to build low-cost vacuum degassing machine with 50 ml syringe and a stepper motor that will be controlled by Arduino.