Compared with the previous version, the circuit part has not changed at all, except that an acrylic top cover has been added and the shape and layout have been changed, specifically:
1. The filament has been plated and is easily damaged if it protrudes from the PCB surface.
2. Since the filament sinking plate slot occupies the position of the PCB, the filament placement and component layout were changed. Due to space constraints, some resistors and capacitors were changed to 0603 packages.
3. The typec socket has been plated, mainly because the only socket on hand is the plated socket.
4. Export the second pcb file with only the border layer as dxf and use it to make an acrylic board, which is 2mm thick.
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