Cnc homemade, v-bit 30° 0.1mm
That’s pretty, but I still prefer chemical etching…
I think you’d be hard pressed to get something that clean and fine pitched with chemical etching.
The way I use to do it:
Always planned on using the vinyl cutter to cut a mask for etching, but this looks promising. Could use the CNC to drill the holes n do a double sided board…
A pcb está porreira!
Que cnc tens? é uma home made ou compraste alguma?..
É uma homemade mesmo, com tb6560
I prefer a mill. Holes perfect and perfectly aligned, no over-etched bits, double-sided trivial. I built three different boards on my mill today, and cleanup consisted of a minute with the shopvac. Then again, part of that is I haven’t ever gotten chemical etching to work well.
@Kienan_Vella
How exactly do you think commercial printed circuit boards and even integrated circuit dies are made?
By milling. At least, all the boards I get processed seem to be milled.
Pro PCB’s are done with a combination of CNC drills, laminating, photoetching, multilayer plating, and cnc routers. Most PCB fabs will let customers take tours of their facilities, and it’s pretty cool to see, especially the flying probe system they use to test the finished boards.
I’ve visited the board house that we use for production, but unfortunately we never asked for a tour.
See if they’ll do one. It’s cool, and sometimes you learn how to do board design stuff that makes fab easier/cheaper by talking to fab people. (And it’s good to find out that they have an x-ray machine capable of validating bga placement, if you’re a good customer, because you might be able to go over and check out a board using their equipment.)
@Kienan_Vella
BZZZ! Guess again. Most things are not as they seem. Pros pressure spray etch boards. Even the manufacture of integrated circuitry is often a sophisticated form of photo lithography, which is basically an advanced form of chemical etching that they do. Milling boards is an amateur hack. That it works for some people is great, for them I suppose.
I prefer professional etching with solder mask and everything for batches but when you need a single PCB and waiting is not much of an option, milling it yourself is a great option.
Especially with drilling lots of vias and precise mounting holes (that match the CAD model of your housing) in the same process.
@Marcus_Wolschon It’s actually been a long time since I’ve done any board, but that use to be so expensive. Me n my one offs could never justify it. But they are nice…
It has become super cheap even for 20 boards and you get them laser cut solder paste mask and everything.
@Marcus_Wolschon
It is super cheap to just go on Amazon and buy stuff. But that sort of defeats the DIY aspect of things for me.
You still do all the design, soldering, debugging, mounting, rigging,…
A naked PCB is of little use.
The itsy bitsy soldering points do seem to get harder as we age…
@Mat_Helm
Youth is wasted on the young.