A Build-Your-Own Three Axis CNC PCB Milling Machine

Partially RepRapable automated open source bag valve mask-based ventilator

“…The design of the device and software was governed by ISO standards [72] , the British Medicines & Healthcare Products Regulatory Agency’s rapidly manufactured ventilator system [73] and the Key Ventilation Specifications developed by the E-Vent project [74] along with consultation with health care professionals. The system can be fabricated from readily accessible components, open source Arduino microcontrollers [75] , [76] open source electronics that can be made with open source mills [77] , [78] , [79] and custom parts with a RepRap-class material extrusion-based 3-D printer [80] , [81] , [82] , [83] , [84] . Mechanical ventilation, which can be easily controlled by a simple user input, was chosen to be most effective at treating the largest number of people.…”

Open source framework for a Broadly Expandable and Reconfigurable data acquisition and automation device (BREAD)

“…As BREAD is an open source system geared toward DIY engineers, scientists, and makers, it is highly desirable that the boards are manufacturable on commonly available circuit milling machines [32] , [33] . Designs that meet these criteria should: Have routing all done on a single layer (on the bottom layer) All surface-mount components should be flipped to the bottom layer All through-hole components should remain on the top layer Minimum trace size: 0.5 mm, minimum feature spacing: 0.2 mm, pad copper width greater than 0.5 mm When trace cross-over is unavoidable use the second layer, but also use vias such that a fine-gauge wire can be substituted as a bridge.…”

Academic Research Role in Encouraging the Use of Affordable 4.0 Technology in SME’s Product Design Development (Case Studies: The Use of Manual Two-sided Machining Method on 3-Axis CNC Milling Machine for Wooden Wristwatch Prototype Making)

“…The more axis used the more expensive the machine. These days many researches already successfully conducted to make affordable CNC milling machine [24][25][26][27][28][29][30]. One of the most affordable CNC milling machine that can gave quite wide varieties of use is the 3 axis milling machine.…”