Desktop Mfg. Printed Circuit Boards

Software

Atomstack Laser
Spray Paint Flat Black Krylon Ultra
Alcohol
HCL Method Muriatic Acid and Hydrogen Peroxide
Wearing gloves and goggles, simply pour 50mL of hydrogen peroxide (3%) in a 150mL measuring cup then add 25mL of muriatic acid (31.45% hydrogen chloride). Stir this mixture with a plastic spoon for a few seconds. Remember never to add the peroxide to the acid. Instead make sure you add the acid to the peroxide.Through trial and error I have successfully timed and etched .5 oz copper clad boards (double and single sided) without an etching tank or heater in less than 2 minutes. Boards smaller than 2" x 2" can take considerably less time. I don't recommend you make an extra supply and store it, because the moment these two chemicals combine, a reaction starts which slowly neutralizes the solution.


Hydrogen Peroxide 30pct
Lacquer Thinner
Hand Drill Controlled
Drills
Drill Hand Held
Etching Chemicals
Ferric Chloride
Sodium  Persulfate
Oil Based Shapie Set
Conductive Ink Pen
Etch Resist Pen
Copper Board
Copper Board

Staedtler Lumocolor pens. They come is a few diferent nib sizes, the smallest of which works quite nicely for spotting out broken tracks on resist or drawing whole layouts. You have to be careful not to dissolve or dislodge any toner with the nib when touching up, as can happen if you are a bit heavy handed.
The board needs to be spotlessly grease free too, and so any grease coming from your fingers or hand can impare the etch, so I wear disposable powder free gloves if doing this bit.

Don't get suckered into paying extra for one that is sold as an etch resist pen, just a normal Permanent (not the water based ones!) Lumocolor is just OK.

Sodium persulfate solution is my favorite etchant, btw, because it is clear, doesn't produce any
noxious fumes when hot and working, and the byproducts (sodium sulfate and copper sulfate)
 are less environmentally hazardous than ferric chloride.


JLCPCB