3D Printed Circuit Board: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
#Method 1 - 3D print serves as resist on copper clad board, which is then etched in standard fashion. | #Method 1 - 3D print serves as resist on copper clad board, which is then etched in standard fashion. | ||
#Method 2 - Solderless version uses conductive paint. 3D print conduits for conductive paint, put components into small holes on other side, bending leads for good contact. Resistivity of the commercial conductive paint is 1 ohm per inch - workable for logic circuits but not power circuits above 1A. Instructable - [https://www.instructables.com/id/3D-Printing-3D-Print-A-Solderless-Circuit-Board/]. Compare to resistance of copper, perhaps 1000x less? [https://www.electronics-tutorials.ws/resistor/resistivity.html] | #Method 2 - Solderless version uses conductive paint. 3D print conduits for conductive paint, put components into small holes on other side, bending leads for good contact. Resistivity of the commercial conductive paint is 1 ohm per inch - workable for logic circuits but not power circuits above 1A. Instructable - [https://www.instructables.com/id/3D-Printing-3D-Print-A-Solderless-Circuit-Board/]. Compare to resistance of copper, perhaps 1000x less? [https://www.electronics-tutorials.ws/resistor/resistivity.html] | ||
=Links= | |||
*Overview article on different additive manufacturing methods for 3D printers - http://www.manufacturinglounge.com/3d-printed-circuit-boards-additive-manufacturing-electronics/ | |||
=Conclusions= | |||
*Paste extruders can yield satisfactory results for logic circuits, but not for power circuits. | |||
*Assuming logic is up to 50mA signals - 12mOhm/square ([[Voltera PCB Printer]]) is fine. In the case of a 1 mm lead 10 cm long - carrying 50 mA - 12 mA- See [[Ohms Per Square]]. | |||
Revision as of 23:53, 2 April 2019
- Method 1 - 3D print serves as resist on copper clad board, which is then etched in standard fashion.
- Method 2 - Solderless version uses conductive paint. 3D print conduits for conductive paint, put components into small holes on other side, bending leads for good contact. Resistivity of the commercial conductive paint is 1 ohm per inch - workable for logic circuits but not power circuits above 1A. Instructable - [1]. Compare to resistance of copper, perhaps 1000x less? [2]
Links
- Overview article on different additive manufacturing methods for 3D printers - http://www.manufacturinglounge.com/3d-printed-circuit-boards-additive-manufacturing-electronics/
Conclusions
- Paste extruders can yield satisfactory results for logic circuits, but not for power circuits.
- Assuming logic is up to 50mA signals - 12mOhm/square (Voltera PCB Printer) is fine. In the case of a 1 mm lead 10 cm long - carrying 50 mA - 12 mA- See Ohms Per Square.