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Making high quality home etching easy - 6/6mil PCBs exposed with an SLA printer

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dirtcooker:
@TmaxElectronics,
nice project. The latest generation of these MSLA printers like the MARS 3 4k should be able to make very good pcboards. jlcpcb.com and others often have gerber file size limits of 5 or 10MB. This is not a limitation for most boards, but I have one project with detailed artwork, the gerber is 83MB (5MB compressed) and the board houses choke on it. I think it could be made using a 4k screen direct to pcboard exposure. I wrote a python program to generate the artwork as an 8192x8192 bmp and as an svg vector file. inkscape reads both files no problem, but svg2mod, kicad 6, blender 3 all crash. So I am unable to extrude the file for use in the MARS3. kicad's bitmap2component successfully converted it to a kcad_mod file in about 10 min or so, and I was able to produce the gerber.

Thus I would like to avoid all the software conversions. The screens are available cheap, for example https://www.amazon.com/ELEGOO-Inches-Monochrome-Resolution-Printer/dp/B08NTBN8S5

Does anyone know how to hook this up to an HDMI board, so it can be plugged into a PC as a display device? This might work, I dunno: https://www.displaymodule.com/products/display-adapter-for-hdmi-to-mipi-dsi?variant=31902301421666

This appears to be a complete solution: https://www.aliexpress.com/item/1005003493405410.html

There are numerous applications for this: B&W prints, microwave metamaterials and antennas, glass lab-on-a-chip (LOC) devices.
This is what the PC board artwork looks like, with 0.2mm dia holes in an otherwise solid copper layer, over 100k of them on a 100mm dia disk.

thm_w:

--- Quote from: dirtcooker on May 03, 2022, 04:21:05 pm ---Does anyone know how to hook this up to an HDMI board, so it can be plugged into a PC as a display device? This might work, I dunno: https://www.displaymodule.com/products/display-adapter-for-hdmi-to-mipi-dsi?variant=31902301421666

--- End quote ---

PJ089Y2V5 is listed as 8 lane MIPI, this thing says 4 lane.
TM089CFSP01 not sure, probably the same.
Also its listed as 50 vs 60pin in some places, so may not work.

Interesting that these companies are building HDMI boards, I wonder what their end application is. People making DIY resin printers I suppose?

eugene:
DIY PCB fab might be relevant today. A benchtop CNC suitable for doing all the drilling could probably be DIY'ed for a few hundred dollars. Plated through holes would be nice, but we're talking about turning something around in a couple of hours. You can shove a piece of wire through the hole before soldering everything. Solder mask might be a luxury I could live without when prototyping. Might be a feature! Multilayer boards? I don't know.

Good quality DIY PCB fabrication with fine pitch copper, well located vias, and not too much artistic hand work might not be an unrealistic goal.

ace1903:
Little bit help please :D
Locally I can find only Creality LD-006 SLA printer with 3840x2400 resolution.
This resolution is probably with x3 interpolation since display is converted to monochromatic mode.
Since I do not own SLA printer I do not know if I can use Gerber2Chitubox program for LD006, and if this program can make this conversion to monochromatic mode?
Before investing in LD006 I would like to know if changes into software are needed and if this printer can make PCB with comparable results with Elegoo?
My Java knowledge is not great but I think I can make small  patches if needed.

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