How to efficiently make MCPCBs thinner?

“Efficiently” is the key word. If I only needed to do this once, I’d put the sandpaper on the workbench and get to work sanding. But I need to do it to 10+ MCPCBs and at that point it is going to take a lot of time and cause a lot of finger cramping.

(This is because I can’t find a thin (less than 1.0mm thick) DTC MCPCB. If you know of one please tell me.)

I do not have any machine tools such as a mill that could remove material quickly with a cutter. I do have a drill press, random orbital sander, and lots of hand tools.

I’ve thought of a couple possible ways, but kind of want to hear what you all think before I make a suggestion that might pigeon-hole everyone’s creativity.

Which brand ’boards do you have?

I know the KD boards are thinner than the Noctigon’s.

Edit; The KD boards are 1.5mm thick.

I have tried a few methods, and it is always a lot of careful work.

What worked for Noctigons was soldering an omega-shaped piece of thick copper wire onto the two ledwire-pads and use that as grip for your pliers, you can then use the orbital sander but it needs a lot of cooling (glass of water), and there is the risk of stripping the brass circuitry off the board. But don’t do this with the Kaidomain boards for the brass circuitry will certainly come off!

I hope for you that someone comes up with a genius trick. I’m listening! :slight_smile:

Ok These from Jaxman is DTP. Only 1mm mcpcb I have seen…

I would use a piece of soft wood

carefully use a hammer and other hard wood piece to stamp the Board as deep as you wish in the soft wood

then place the stars in the wood and go to a belt sander, when you start sanding the wood the star is thin enough

Of course you can finish the surface with finer sand paper