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Making PCBs with 3D Resin Printers

2017/2/3 15:29:02

The folks over at Full Spectrum Laser are Kickstarting their own 3D printer – a stereolithography machine like the Form 1 and B9 Creator printers. During their testing, they discovered a new application for these SLA printers that should prove to be very useful for the makers and builders using machines – manufacturing PCBs with UV-sensitized copper clad boards.




Full Spectrum Laser’s printer – the Pegasus Touch – uses a near UV laser and a galvo system to build objects in UV-curing resin layer by layer. In retrospect it seems pretty obvious a UV laser would expose UV sensitive boards, but this discovery simply reeks of cleverness and is a nice ‘value added’ feature for the Pegasus printer.
The Pegasus printer has a laser spot size of 0.25mm, meaning the separation between traces on Pegasus-produced PCBs will be just under 10 mils. That’s a bit larger than the limits of laser printer-based PCB fabrication but far, far less complicated. Making a PCB on an SLA printer is as easy as removing the resin tank and putting a sensitized board on the build platform. Draw some traces with the printer, and in a few minutes you have an exposed board.
We’d really like to see if this technique can also be used with other SLA printers. if anyone out there would like to experiment, be sure to send the results into the tip line.

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    polatgorkem

    2017/2/5 15:29:02

    Good resource for new beginners.

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    barkoczay

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