Etching Bronze Brass and Copper - Edinburgh Etch - PNP Blue Paper

[@DarkHorseWorkshop]

What do you think this technique would be perfect for right away? I'm thinking a book, nice square pieces on the cover, even on the spine. So many possibilities I'm excited to start incorporating into my work and I hope you guys do as well.

[@Thaddigren9]

Usually I see plates like that on belts. I do my acid etching quite a bit different. I've never gotten the toner to transfer effectively. I use my cricut to cut vinyl for my resist. The vinyl tape that is electrical tape also works really well to mask off the edges beyond the vinyl adhesive stuff you buy out with the cricut. I've done most of my etchings with muriotic acid. And it speeds up the process a whole lot to run a DC current through the piece. I usually punch a hole in the margins that will be trimmed off to suspend the piece by an exposed wire. Do the same for a sacrificial piece of metal that allows the circuit to complete. The DC current blasts metal particles off quickly and they tend to at least partially flow to the sacrificial metal and kind of plate it. This cuts your etch time significantly. And will even make 20 minute etches into stainless steel deep enough to be wonderful after years of wear.

[@randystull1502]

I'm curious why you didn't use the ammonia and salt method to patina the metals

[@DarkHorseWorkshop]

@@randystull1502 Because I have Jax.

[@petersmedley459]

Bangles? Pretty straight forwards from what you’ve already made and would look great with your artwork, especially a Jellinge serpent.

[@EarthMunky66]

If you had the patience, you could make a fairly epic lamellar vest.

[@andrewbriggs2279]

im a newbie to this and it is so refreshing to hear you saying about the mistakes youve made rather than just blowing your own trumpet like a lot of others do

[@DarkHorseWorkshop]

Thanks, try and keep it real. Hahaha

[@glennracoma7481]

Wow these are great. Love that ancient Celtic look. Can't help but seeing in larger scale like 12"X48" installed on the front door. The process for me is a bit complicated but I am a graphic artist and really appreciate these. Thanks awesome video

[@makerspace533]

I used to use Press & Peel Blue for circuit boards. I also used Ferric Chloride. I found that a laminator used for laminating documents do a great job of laying down the P&P. To make the Ferric Chloride more active, I added a small amount of Muriatic Acid. I used an old microwave oven to heat the etchant. Acetone works great for removing the toner. I like your idea of using the floating technique, very clever.

[@jtfritchie]

These instructions are SO well done and concise. I’m gonna watch it again just to analyze why it’s so good. Thanks just doesn’t cut it for this video.

[@DarkHorseWorkshop]

I really appreciate it. Sometimes it's hard to find a happy balance between informative and nap time.

[@mikecalhoun8497]

Copier/Laser Printer/Laser fax technician here. Toner is basically plastic (with a few other additives) that melts at about 400 degrees F. The last step of these machines is to melt the toner onto the paper. That's why the heat on the hot plate transfers the toner to the brass plate. The Brother later printers toner may have an additive that doesn't work to well with your transfer paper and that is why people may not have the best results with it. I would also try warmer heat setting to see if you get better transfer of the toner to the brass plate. After neutralizing the etching fluid you might want to try some lacquer thinner to remove the toner. Any solvents that I used when cleaning a machine seemed to melt the toner and greatly help in the removal of the toner. Might work better than sanding and be quicker and easier. and may be worth a try since you are still experimenting . Great video.

[@solsdadio]

Insider tip for Edinburgh pronunciation, phonetically its Edin burr ruh. I have a feeling looking at your work you’d enjoy Scotland and the islands......assuming you haven’t been here already. Thanks for your generosity sharing your knowledge.🦊

[@DarkHorseWorkshop]

Had a spelling brain fart and didn't even connect the word to the place.

[@TheNathanMChannel]

These are extremely beautiful. The combination of the celtic-ish sworl knots and the darkened metal patina is perfect. Am downloading, perspective correcting and vectorizing these myself for sure. Not to etch but mainly to try and get my head around this style.

[@WARinMYhead1]

this is pretty cool! I've started making wood mallets and I've wanted to start incorporating metals into the builds. think it would be awesome to etch a design and epoxy it to the sides of the mallet head. thanks for the inspiration!

[@Onion198]

Awesome work as always! I doubt you remember my last message about wanting to start working with leather because of you but I finally made my first bracelet and put the final touches on it today. It's ugly, but I made it and I'm really excited to keep making more. Thank you!

[@DarkHorseWorkshop]

Pleased to have you along, I can't place the message but my memory is just poor in general. Be sure to send your work to info at darkhorseworkshop.com so I can have a look!

[@Thaddigren9]

Usually I see plates like that on belts. I do my acid etching quite a bit different. I've never gotten the toner to transfer effectively. I use my cricut to cut vinyl for my resist. The vinyl tape that is electrical tape also works really well to mask off the edges beyond the vinyl adhesive stuff you buy out with the cricut. I've done most of my etchings with muriotic acid. And it speeds up the process a whole lot to run a DC current through the piece. I usually punch a hole in the margins that will be trimmed off to suspend the piece by an exposed wire. Do the same for a sacrificial piece of metal that allows the circuit to complete. The DC current blasts metal particles off quickly and they tend to at least partially flow to the sacrificial metal and kind of plate it. This cuts your etch time significantly. And will even make 20 minute etches into stainless steel deep enough to be wonderful after years of wear.

[@DarkHorseWorkshop]

Ya, these are for belts for sure. After I've done a bunch of these I may try some vinyl or electricity but figured this would be a great safe first etching project for people. Sometimes things like "oh just run a current through it" will make people never even try it, I know I'd get a little skitish doing things like that. :)

[@Thaddigren9]

@@DarkHorseWorkshop I completely understand that. I kinda worked up to it with methods similar to what you put in this video first. but a little $50 DC power supply off amazon has served me pretty well for a few belt plates, pendants, a crown, a few etched hammers, and a book plate all in steel. If you are willing to give it some time you can even forgo the acid and just use salt water. For that method you can basically hook up the aligator clip from the power supply to the metal you are working with and something like a cotton makeup pad in the other clip. Dip it in the salt water and just hold it to the metal where you want to etch. This is better for small areas like a logo on a knife blade.

[@tommccool27]

@@DarkHorseWorkshop I actually use a rectifier for both copper plating and for electric etching. it works amazingly. I've even etched knives and Axes with the rectifier and salt water.

[@mjremy2605]

That is a beautiful job of etching. Looks pretty easy but I do need some safety gear. The motifs turned out so clearly etched with fine details. Very nice job of JAX patina too. I have just bought some JAX and hope to use it soon. Thank you for a lovely demo, very enjoyable. I left some safety info below for novices like me.

[@ianjackson8643]

to protect the back of the surface you can use a varnish to cover it. i have seen people use nail polish/varnish as the colour helps to see the coverage. and of course it removes easily with acetone etc

[@jeanwilcox3464]

Most talented! Beautiful pieces!

[@ronniebroyles422]

They all turned out good ! but I agree the deeper etched ones look better.

[@ducomaritiem7160]

Hi, try electroetch with salt water plus (car) battery charger dc current source. From all the etching methods, this is the one I use most. Works best if you put a ring of perforated air tube weighted with lead on the bottom of the etch tank, use fish tank airpump to provide the airflow through the tubes.

[@jeanwilcox3464]

Very good lesson and very easy on the eyes 😁

[@BumbleBauz]

The results are very cool!

[@BuildDadBuild]

Great video! Thanks for the tips! Cheers

[@indubalaji3925]

Loved the work ! The design is so elvish !!

[@XEllC]

You can use automotive vinyl. The air lift versions work extremely well if surfaces are level sanded and cleaned

[@FrankPSF]

More etch PLEASE. Really fun and informative. Thank you!

[@DalePeyton]

I have a suggestion on how to eliminate toxic materials in liquid form. You can pass this on to your people. But then whatever state they're in, they're gonna have to check. But I know how it done here in California. I can take asset resist any kind of Ashes. Important to Kitty litter and wanted turn semi. Whatever then I can. Pour it out onto a blue tarp. Once it's dry, California considered it nontop chick. Try it check with your people in your state. Tell bill to tell you go to a pink company. They'll build a towel cause they deal with toxic paint. All the time have a blessed day. Thank you for your video I have to try your method of etching

[@vladisartdesign7080]

Well done 👏👏👏, fantastic job 👌👌👌

[@carennorthcutt7724]

How beautiful is that!!!!!

[@brettster3331]

Great Video, you have a very nice way of showing your technique, it is easy to follow and so informative. Thank you !

[@mjremy2605]

Q: What is 'to vectorize artwork'? A: For those that don't know what this means, like me.... Vector artwork is art that's made up of vector graphics using software such as Adobe. The original artwork is processed by software that makes a note of the points, lines, curves and shapes, and create mathematical ratios between them and resulting formulas. Then, when you want to enlarge or shrink this image for use on a bigger or smaller item, you can do easily from the computer without redrawing by hand. Smart way to reuse an image over and over again. When you scale (enlarge or shrink) a vector image file, it isn't low resolution and there's no loss of quality, so it can be sized to however large or small you need it to be. This is much sharper than resizing a picture using Microsoft Paint, or PowerPoint, or MS Word. This is the pro version. Prior to this video, I did not know this. I learned something new and thought others should understand what this process is. This stuff is toxic, corrosive, and potentially explosive. I've never worked with it, but researched it. Read on for safety tips... 1. To make it safe for disposal, you can add sodium carbonate (washing soda) or sodium hydroxide to neutralize it, until the pH value goes up to between 7.0 and 8.0, testing it with indicator paper. Have the indicator paper handy. Have Baking Soda handy. Either Baking Soda (sodium bicarbonate) or Washing Soda (sodium carbonate) will neutralize the acid, make it non-corrosive. After adding the soda and water, check with your Litmus indicator paper for alkalinity between 7-8 pH. Once it is that pH, then you can flush it down the drain. Neutralizing this will create CO2 Carbon Dioxide, so work outdoors. 2. Is ferric chloride a hazardous chemical? Ferric chloride reacts with most metals to give flammable, potentially explosive hydrogen gas. Latent fire and explosion hazard when in contact with metals due to hydrogen gas. Work in well ventilated places and wear a chemical mask. Do not damage your sensitive lung tissue. Cover eyes with goggles that seal off air, not just safety glasses. The fumes can burn eyes. Even if you work outdoors, WEAR PROTECTION - Googles, chemical mask, gloves, apron. See SDS. Don't be macho about this. You only have one body in life, and it cannot be taken to a garage to get parts replaced. Don't take shortcuts. Safety Data Sheet (SDS) on Ferric Chloride: www.vanderbilt.edu/vinse/facilities/safety_data_sheets/Ferric_chloride_iron_trichloride_FeCl3.pdf

[@oharakatie14]

Awesome video as always. Every time I watch your videos I immediately get my shit together and do an unfinished project

[@BillKibby1]

Very cool looking project! I do occasional PCBs with similar, though with heated Ferric Chloride it only takes a short while to get through the copper. Try a Value Village page laminator, a couple passes once preheated should stick the toner to the surface very securely. Also, acetone for cleaning pre and post, toner literally melts off the surface with it. I love that patina you're getting with those!

[@sororbudwiser]

Thanks for the video! It would be awesome if you could show the process using sterling silver also.

[@derekrea4876]

If you have issues using chemicals, you can use cut vinyl as a resist and use a sandblaster to etch the metal.

[@peterkovachevich]

Thank you for this!

[@keirfarnum6811]

If you want the blues and greens in a patina, you can use the ancient “piss ‘n vinegar” method. Mix some ammonia with a small amount of vinegar and saturate some saw dust to place on your brass or bronze piece (keep inside a container since the fumes aren’t healthy) and allow it to oxidize over a few days or even weeks. Works well.

[@technoshamanarchist]

I used PNP blue for a long time for etching PCB's. They work the best if you get a cheap laminator.

[@DarkHorseWorkshop]

Never tried that.. Thanks for the info. :)

[@cheliae8560]

Stunning!! Thank you!

[@rondumontier1187]

Man that is some nice stuff👌 Love your work

[@jurriaandejongh8677]

Gorgeous work!

[@1jotun136]

You might want to investigate etching in print making. We use a resist called asphaltum which is thinned and ultimately removed with paint thinner.

[@HeretikLeathercraft]

Nice job, man! I try to etch many times, but the only problem always was the transfer of the drawing to metal. Never heard of this type of paper, should to try it. Thanks for tips!

[@DaveFer]

Wow, that's all beautiful. Congratulations on your success. And thank you for sharing your knowledge with us. :)

[@ScoutIIRes]

For better agitation try using an aquarium air pump and run plastic tubing to a stone aerator and submerge in the acid bath.

[@JaneMonteith]

Thanks for the video. Where did you get your Metal Shear Cutter from? (at 8:17) I've been looking for one to cut thin strips of metal accurately. Thx :)

[@DarkHorseWorkshop]

It was gifted. But around here maybe kms tools

[@gentlemanzackp6591]

i used simple antler horn to transfer the template becasue i accidently scored when rubbing on the sheet with the steel thing you had.

[@stevelyman6917]

I used phosphor bronze and thought something went wrong when I saw a layer of white gunk on the surface of the metal. I think it was the phosphorous interacting with the acid. The etch came out beautifully, though.

[@W4ABN]

Just watched this and your How did I get here video. Pretty cool the stuff you've done. I've seen etching before, but not quite like this. The aged look you give the pieces at the end give them a nice look. Gives me ideas if I ever try it out myself. Thanks for sharing your work.

[@clydecox2108]

That was pretty amazing

[@tracyskorka1479]

Very cool, great work! Would love to give this a try one day!

[@pst291]

Very inspiring . loved this

[@GarageKnight]

Very clean job, beautiful! And a good tutorial

[@juanjobravo4476]

Use a clothes Iron almost at the maximum temperature for 30 seconds and press hard special the edges, so the PNP blue paper make the job very even, the same method that used to transfer the toner "laser" ink to cooper pcb board.

[@sevenravens]

Use a sharpie marker on the edges too especially along the tape seam

[@RichSobocinski]

Wouldn't acetone be a less destructive way to remove the resist?

[@sandramueller2592]

I thought so too.

[@Micky-74-v6f]

Awesome! I'd love to try this!

[@cmdraftbrn]

i like that top left one

[@laxmilalsingha6362]

Very nice. Lbelong to India.

[@missk2876]

You can use sharpie pens for a resist also, dont be afraid to add an extra thick coat on the top.

[@tortugakeskecapeutefaire3874]

Buenos dias..una pregunta..es lo mismo el paper pnb blue que el amarillo?? It s the same the blue pnb paper than the yellow one?? Gracias.y buen dia

[@mattinkel7342]

The worked great! what was the hydrogen peroxide strength percentage? (Not the mix ratio)

[@vincentferrari]

I know this is an old video so I don't want to be the guy who resurrects things from the dead, however I think the reason you had some issues with the straight Ferric Chloride etch is that the metal wasn't hot enough. A surefire way to tell when the metal is hot enough: Leave the skillet on (250-300) and let it sit there until it's fully at temperature. Take the metal and drop it on the skillet and let it sit there until it's hot. Once it's completely hot, lay the PNP paper on it. You'll know if the temperature is right because the paper will immediately adhere to the metal. If it's hot enough you won't have to burnish much at all. Lastly, GENTLY burnish the paper onto the metal. I use a wadded up paper towel so as not to scratch into the paper, and if the metal is hot enough and the paper has adhered, that should be all you need at all. Using these techniques with the PNP paper, I get zero white spots, etc. Also, if you're doing designs like the woven one, you should probably consider using a vinyl cutter (Cricut / Silhouette) and use Oracal 651 or some other permanent vinyl as a resist. You only need to use PNP for excessive detail or fine pieces, but pieces with larger areas to resist etch much better with vinyl than with PNP. Hopefully some of that helps, and I've started following the channel now so I can see more of your work!

[@vincentferrari]

Oh, and the formulation of the toner is critical. I have a Brother printer and it absolutely does not work with transfer paper, so I bought a cheap little HP laser that works flawlessly. It all has to do with the melt temp of the toner and it can be really finicky.

[@DarkHorseWorkshop]

Which hp do you have? I've been meaning to buy a new one, the brother I know is bad but I've just forced it to work. Thanks for all the great info.

[@vincentferrari]

@@DarkHorseWorkshop the M110we. It runs about $120 and works perfectly for this 😊

[@زركون-ط5خ]

Would you pls. tell me how maney plate like these would a 1L Ferric chloride etch?

[@DarkHorseWorkshop]

Sorry no idea honestly I do it fairly sparingly.

[@waynethompson8416]

Although you may not have any further steps in etching the metal, surely you have some purpose in mind for those pieces....like attaching them to leather, etc. I was disappointed that you stopped at the point that you did... Would love to see you etch Brass or Copper and place it as an inlay in leather!!!

[@DarkHorseWorkshop]

I'm giving them away to friends as belt plates, and have put one on a belt of mine. There will be more videos with etching, where I use them in projects. This was just a LOOK WHAT I CAN DO! :)

[@mrz4785]

thanks dude youre amazing

[@RavenAttwoode]

"I'm going to use bronze because when etching I want to use the most expensive and difficult to find metal in my city." ROFLMAO! So sassy 😂

[@brainwashingdetergent4322]

Where I work, we throw away (scrap) probably 100 lbs of bronze a day. They won’t let us take or buy any of it.

[@W4ABN]

@@brainwashingdetergent4322 Sounds like you need raid the bin when nobody is looking.

[@LaserGadgets]

I tried it once, but with spraypaint, it just ate away most of it. The edges start fizzing and bubbling instantly so the spray came off.

[@richardandreucetti389]

Great Video, what thickness Copper do you recommend?

[@DarkHorseWorkshop]

That's just totally project based... you can etch any thickness. I think these were 18 gauge

[@Gothica059]

Being Scottish, I'm sorry but I had chills at the way you said Edinburgh. It's pronounced Edin-buru (bu as in butt and ru as in rutt)

[@reebertJunkman]

awesome video thank you.... good job

[@DarkHorseWorkshop]

Glad you liked it!

[@macewen1]

You should try electro etching, so much easier and you don't need to float things.

[@DarkHorseWorkshop]

I'm sure I'll try that some time, not sure how much easier it can be unless you just mean getting it to etch faster, for sure. But this video is aimed at getting people to try etching with few obstacles. It's amazing what a little word like 'electro' will do to peoples courage for trying new things. ;)

[@richwatts1981]

have you tied using a laminating machine to transfer the ink??

[@loub1105]

Try using a toothbrush and Comet to clean your piece after etching. It works well for me. Good luck-

[@DarkHorseWorkshop]

Oh thanks for the tip

[@dawnynz70]

wow that is cool , love it :-)

[@fillphat]

fantastic... could u leave the imperfections at the start to make it look more oldy worldy? do u put some sort of clear coat or something to keep them looking good? great video mate... liked and subbed.

[@valkyrie1716]

Awesome work dude

[@DarkHorseWorkshop]

Thanks!

[@DarkHorseWorkshop]

I've asked Edinburgh to change the spelling of their City to Edinburough so I don't feel as dumb, that is all.

[@UmBungo]

Dark Horse Workshop why? It’s pronounced “Edinburra” and not difficult, but you North American’s have problems with our capital city’s pronunciation 🤣🤣🤣 Love your videos, by the way

[@DarkHorseWorkshop]

I didn't even connect the dots that it was talking about the city, which I totally pronounce like Edinburra when talking about it. Hahahaha.

[@UmBungo]

Dark Horse Workshop 😂 😂 I have daily doses of brain farts, don’t worry. If you read this, could you recommend a very basic set of tools for a beginner on a very tight budget? Just enough to make a few wallets etc. Nothing like some of the really intricate stuff you do. I’ve recently fallen into this but as I say, my budget is extremely low.

[@DarkHorseWorkshop]

@@UmBungo I have a few tool set links in the description of my videos as well as off of my amazon storefront. Lonsdale Leather also has a few beginner sets. After a quick look this one might be good, but I've never actually bought a kit. Seems to have a reasonable assortment of tools though, pricing is odd shows 59, but then the link shows 180 so tell me if it's 59: amzn.to/318fY1M

[@Martyntd5]

@@DarkHorseWorkshop ///which I totally pronounce like Edinburra when talking about it./// Edin-burra is not wrong, but if you want to say it like a native, it's shortened a little further to Edin-bruh. Here's another: Loughborough is pronounced Luff-bruh. We do it just to mess with Americans. :D

[@santoshchaviti]

Very Cool

[@ganeshbehera550]

What is this heatmachine

[@DarkHorseWorkshop]

Just an electric skillet

[@erepsekahs]

Brilliant Posting. Thank you. Just one word of advice, don't ever go to the UK and ask where Edinberg is, they will laugh. Of course it's spelled Edinburgh however the correct pronunciation is Edin-burrah. I promise you that is correct. Thanks again for the very informative vid. Same holds true for Worcestershire Sauce. In the UK it's simply pronounced, "Wooster" which comes from Wooster=shear. We have these little tricks to uncover the foreigners in our midst. wink-wink.

[@jacknemo8021]

Windex works great to neutralize also.

[@med8615]

can we freestyle with a sharpie in place of a Faber-Castell pen? Would that work?

[@lainakro8009]

hey How do I transfer the drawing to blue paper? do i need a special printer? Why do I see the design here :=not directly on the blue paper

[@DarkHorseWorkshop]

Laser printer.

[@thehorriblebright]

I would really suggest investing in an iron or a laminator. I've seen pnp blue being used to make pcbs with zero voids or imperfections in the resist. Haven't tried it myself, only direct toner transfer, which is a pain in the backside.

[@Hady_septirah313]

can it be without transfer from the logo, with a self-image using what ink

[@GamKagan-m1s]

Wow - You just taught me something I've been wantingto learn for years. I have a question - will any heat transfer vinyl work(standard rolls available on amazon), or does it have to be PNP Blue?

[@DarkHorseWorkshop]

I think you can do some regular vinyl transfer stuff but don't quite me on that. I'm about to experiement with paint where you remove the paint you want etched with a laser engraver.

[@petermarsh4993]

Hi Stallion, nice demonstration of etching. Never given it a thought but you make it look so easy, I should give it a try. By the way, Edinburgh is pronounced “Ed-in-burra”. Cheers.

[@mrtadreamer]

How long should a piece of high carbon steel remain in the cloride to etch to a depth of 1/8" ?

[@DarkHorseWorkshop]

Not sure if it even does steel. Never tried.

[@mrtadreamer]

@@DarkHorseWorkshop if you test it out, lets us know in a future video.

[@marcsenteney3160]

Well done sir!

[@gerhard1438]

Hiii! I tried in my home but I had a problem. I left the brass into the ferric clorhdric and after 2 hours the brass turned all in pink colour... what I did wrong?

[@DarkHorseWorkshop]

Brass has copper in it. So you may have to give it a bath. This article may help but dig around for this kind of stuff. www.bhg.com/homekeeping/house-cleaning/surface/how-to-clean-brass/

[@VaracolacidVesci]

Just use a vinyl cuter and use vynil. It work just perfect to prevent the acid etching it

[@DarkHorseWorkshop]

Great idea for people with vynil cutters.

[@mrm8171]

Hello, was there any final decision of what determined the better etching? The resist or the mix of the acid?

[@DarkHorseWorkshop]

Answering old questions. I think the right combination of freshness and heat is what made it work the best. I just recently did an etch and I left it for 3 hours but the heat was off and it wasn't great. Not super hot, just warm.

[@gonsolop2429]

Love your ideas. Thank you for sharing. I got my wires crossed on this video. I thought you were going to transfer a metallic sheen to patterns on leather armor. Like paint, only its metal. Or is that not metal, but a metallic paint? Example: your etched design on a piece of leather armor to be dipped in wax. Instead of white paint, how about bronze, gold, silver, or copper? [ Like a learher greave with an attached leather plate that has your celt pattern on it with a metallic sheen. ]

[@Flying0Dismount]

Brother printers are less effective as they typically use LED strips instead of a laser so the toner density is not as high, but it also depends on the transfer film- some brands will retain more toner and transfer it better.. I use a Canon laser and a regular clothes iron for transfer.

[@mickleblade]

How deep an etch is possible? I'm interested in making a branding iron for Woodworking. I know they'll be a bit of an undercut after a bit.

[@derkderky803]

Those would make a great business as custom door push plates.

[@Tarmantarmant]

Nice video....

[@EphanyasisOwleyes]

Those are awesome

[@VWDJeweler]

What printer did you use for the PnP?

[@Benable7]

Do you have those plate designs for sale on your site? I can't find them. I will buy them if you post them.

[@DarkHorseWorkshop]

You're interested in the artwork in order to etch it? If so I can set that up for you, a lot of my art isn't Vector and it needs to be inverted for etching etc. But I can. Email me [e-mail] to make sure I don't space and get it done for you.

[@hideouspenguinboy]

Rather than adding the citric acid, could you have just left them in the acid bath longer?

[@DarkHorseWorkshop]

I'm not an expert but yes that sounds right. I think the citric acid bites better in general

[@peter_nortje]

Use Acetone to remove the resist film after etching.

[@mikefarmer869]

brother laser printers work fine but need extra care with the transfer. use a laminator and make several passes through the machine. I have also used many types of transfer paper an found the simplest is to use regular paper and print like you normally would. once you have run it through the laminator a few times let it cool then run it under water and rub the paper off with your finger till you only have the transfer left on your cooper. you can also use a cheap aquarium pump and an air stone to keep your etching moving around. this will speed up the etch.