Acid Etching Brass Plaques

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  • เผยแพร่เมื่อ 25 มิ.ย. 2024
  • In this episode of the adventures of Switch & Lever we're making custom brass plaques, using reasonably simple tools, and some basic chemistry. Enjoy!
    Also, huge thanks to Chris from Clickspring for the borrowing of his voice! If you haven't already, and I can't imagine how you could've missed it, check out his channel by clicking the link below:
    / clickspring
    Follow and like Switch & Lever on:
    Facebook: / switchandlever
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    And check out the Switch & Lever online store at:
    www.switchandlever.com/store/
    -------------------------------------
    Music:
    Nicolai Heidlas - Sunrise
    CC By 4.0
    Nicolai Heidlas - With You
    CC By 4.0
    Josh Woodward - Crazy Glue
    CC By 4.0
    -----------
    Random public domain videos from archive.org
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ความคิดเห็น • 387

  • @JoeGatling
    @JoeGatling 5 ปีที่แล้ว +83

    Great video! I particularly like how you included information about how to responsibly dispose of your waste materials.

  • @BenRyherd
    @BenRyherd 5 ปีที่แล้ว +25

    I cannot tell you how much I appreciate you going over proper disposal methods. Great Video! I'm going to have to get some Brass stock from the local home center now.

  • @Mylitla
    @Mylitla 6 ปีที่แล้ว +15

    I've had good luck with the laser toner method but even better success using vinyl stencils cut on a Silhouette or Circut machine. Also, the ideal place to do your etching is on top of a running clothes dryer. It's nicely warm, and the vibration helps keep the etchant aggitated.

  • @robertqueberg4612
    @robertqueberg4612 5 ปีที่แล้ว +4

    That, my man, is a very thorough and professional presentation. You answered questions that I didn’t know enough to ask. This one is going into storage.

  • @0nlyfranz
    @0nlyfranz 6 ปีที่แล้ว +99

    Haha, loved that Clickspring joke :D

    • @leprud
      @leprud 6 ปีที่แล้ว +3

      Oh yeah! Was surprised a lot! :)

    • @Figulus
      @Figulus 6 ปีที่แล้ว

      Just BRILLIANT!

    • @thomas6244
      @thomas6244 6 ปีที่แล้ว +1

      That made me laugh so hard :D

    • @markpaas
      @markpaas 6 ปีที่แล้ว +1

      Brilliant, great humor! Chris is the boss!

  • @ozsebszogeczki5543
    @ozsebszogeczki5543 5 ปีที่แล้ว +2

    Finally someone described well the method to use only home tools. Thanks!

  • @nortok00
    @nortok00 5 ปีที่แล้ว +3

    Another great video!! Very detailed in the various methods of applying a resist along with what did and didn't work! The extra effort you put into this saves the rest of us having to go through the same experimentation. I also like your methods of finishing off the projects. As others have commented I REALLY appreciate that you went into how to properly dispose of the solution so as not to pollute the water! I find a lot of DIY videos that use toxic solutions of all kinds don't discuss this and I'm absolutely mortified to see what people pour down the sink which means we're all potentially drinking it not to mention contaminating the environment! Kudos and bravo to you!

  • @ursaarcadius1
    @ursaarcadius1 6 ปีที่แล้ว +1

    Thank you for being so thorough and addressing environmental concerns. Excellent video!

  • @BlackBeardProjects
    @BlackBeardProjects 6 ปีที่แล้ว +9

    Great video as always man. Awesome results too! Well done :)

  • @sefolug-softwareinnovation6202
    @sefolug-softwareinnovation6202 5 ปีที่แล้ว

    Thanks for that really well structured video. I was super happy to see you treating waste disposal seriously!

  • @firebird8600
    @firebird8600 6 ปีที่แล้ว +5

    That's so neat! I want to put brass plaques on everything!

  • @klayjones724
    @klayjones724 3 ปีที่แล้ว

    Great video. Perfect level of detail. Thank you so much. I've had my laser for 8 years and thought a CNC mill was my only solution for working metal. This opened all new doors

  • @GregsGarage
    @GregsGarage 6 ปีที่แล้ว +94

    Chris from Clickspring!!!! Awesome video

    • @SwitchAndLever
      @SwitchAndLever  6 ปีที่แล้ว +6

      He is an officer and a gentleman! Cheers Greg, appreciate it!

    • @qhack
      @qhack 6 ปีที่แล้ว +4

      Chris is a brass working god.

  • @feynthefallen
    @feynthefallen 6 ปีที่แล้ว

    Awesome tutorial! Gotta try it some time soon. Good to see you being environmentally concious!

  • @CodeFoxAus
    @CodeFoxAus 3 ปีที่แล้ว

    The tip on using the foam to float the plates is brilliant! Thank you.

  • @Chris-ox7qx
    @Chris-ox7qx 6 ปีที่แล้ว +4

    Excellent video! The Chris cameo was unexpected and funny (This Old Tony style). I love it!

  • @christophersimmins3181
    @christophersimmins3181 6 ปีที่แล้ว +1

    Most excellent 'real' descriptions ...and a humorous intro

  • @mriggsdesign
    @mriggsdesign 6 ปีที่แล้ว +1

    Thank you for sharing this video. I can’t wait to give this a try!

  • @Bubblestheghost
    @Bubblestheghost 2 ปีที่แล้ว

    I’m obsessed with this. You’re amazing.

  • @georgemoua
    @georgemoua 2 ปีที่แล้ว

    Great tutorial. I appreciate the discussion on how to dispose of hazardous waste properly.

  • @brucewilliams6292
    @brucewilliams6292 5 ปีที่แล้ว +1

    I also love the fact that you showed how to dispose of the material afterward.

  • @tomsdreamshopworx
    @tomsdreamshopworx 6 ปีที่แล้ว

    So cool to see another video of yours. Always fun and interesting! About woke up the rest of the family laughing out loud at the Clickspring line.

  • @Lemongrasspicker
    @Lemongrasspicker 6 ปีที่แล้ว

    Pretty cool stuff! Enjoyed watching this project

  • @MaltandMake
    @MaltandMake 6 ปีที่แล้ว

    So glad you're back with a new video... going to have to give this one a try! Looking forward to what you bring in 2018.

  • @BruceAUlrich
    @BruceAUlrich 6 ปีที่แล้ว

    Really interesting process. Thanks for teaching me some things.

  • @Match2100
    @Match2100 6 ปีที่แล้ว

    Excellent video! Clear and to the point!

  • @brucewilliams6292
    @brucewilliams6292 5 ปีที่แล้ว

    Excellent video! Thank you. The foam idea is neat.

  • @SebastiaanMollema
    @SebastiaanMollema 6 ปีที่แล้ว

    Great video! Very well made! As a tutorial it is very complete as well!

  • @SmokyFrosty
    @SmokyFrosty 6 ปีที่แล้ว

    Thanks for showing how to discard of the leftovers properly. Great video

  • @johndilsaver8409
    @johndilsaver8409 5 ปีที่แล้ว

    Excellent video, thanks for posting!

  • @issammoumeni4620
    @issammoumeni4620 2 ปีที่แล้ว

    Believe me, the best and most beautiful video I've seen, I benefited a lot from it, thank you

  • @v3gp45ty4
    @v3gp45ty4 6 ปีที่แล้ว +1

    This is an excellent tutorial, Thank you.

  • @nigelhowell3674
    @nigelhowell3674 3 ปีที่แล้ว

    Was searching for a commercial option to produce a name plate. Couldn't find a thing, then I stumbled across your video. Brilliant, bought materials and followed the laser printer method. It's worked better than I could dream of! Thank you :)

    • @SwitchAndLever
      @SwitchAndLever  3 ปีที่แล้ว

      Well if you only need to make one there's hardly a place you can find which will make it and make it worth the cost. For serial production though, making lots of them, you can probably find a lot of producers willing to make it for a price point that makes sense per plate.

  • @r1w3d
    @r1w3d 6 ปีที่แล้ว +2

    I loved the brief commentary of clickspring 👌I love both of your channels.

  • @tinygreenleaf
    @tinygreenleaf 2 ปีที่แล้ว

    Thank you for this! Super helpful and just what I needed, thank you for providing a method I can easily diy.

  • @TheRecreationalMachinist
    @TheRecreationalMachinist 3 ปีที่แล้ว

    Like that. Thanks for sharing! 🇬🇧

  • @Geckomayhem
    @Geckomayhem 5 ปีที่แล้ว +4

    I like how you can do this with just a laser printer, ferric chloride, enamel paint, and sandpaper. Very DIY!

  • @Xellurat
    @Xellurat 6 ปีที่แล้ว

    Your animations are getting better every video. Great project btw

  • @Bravo-ry9st
    @Bravo-ry9st 5 ปีที่แล้ว

    Best tutorial video I have ever seen!!!

  • @fynbo1007
    @fynbo1007 6 ปีที่แล้ว +1

    Thank you for sharing your amazing video.

  • @PhunnyConflicts
    @PhunnyConflicts 3 ปีที่แล้ว

    This guy really produce too notch quality videos!!!

  • @GetHandsDirty
    @GetHandsDirty 6 ปีที่แล้ว +3

    Love it! I want to try this out :D

    • @SwitchAndLever
      @SwitchAndLever  6 ปีที่แล้ว +1

      Do it! You make amazing stuff already I'd love to see what you make with this!

  • @josuelservin2409
    @josuelservin2409 6 ปีที่แล้ว +17

    Wonderful and useful, and thanks for that clicksping cameo, it certainly made my day 😂

    • @SwitchAndLever
      @SwitchAndLever  6 ปีที่แล้ว +2

      Haha! Thank Chris, he made it all possible 😀

  • @smartrajful
    @smartrajful 4 ปีที่แล้ว

    simple and straightforward.. .. great video thank u.. .

  • @RRINTHESHOP
    @RRINTHESHOP 6 ปีที่แล้ว

    Thank you for the review of the process, I have several projects i plan on doing this with.

    • @SwitchAndLever
      @SwitchAndLever  6 ปีที่แล้ว

      Cool cool! Looking forward to seeing some! :)

  • @ianSapo
    @ianSapo 4 ปีที่แล้ว +3

    Best anime crossover : Switch & Lever and Clickspring

  • @LukePettit3dArtist
    @LukePettit3dArtist 6 ปีที่แล้ว

    You get a sub for having Chris and joking around.

  • @lisag2771
    @lisag2771 5 ปีที่แล้ว

    I love your humor as much as you videos.

    • @SwitchAndLever
      @SwitchAndLever  5 ปีที่แล้ว +1

      Thank you Lisa! Comments like yours warms my heart and makes doing all this worth it! 🙂

  • @pjhalchemy
    @pjhalchemy 6 ปีที่แล้ว

    Thanks Daniel! That Craftsman DP badge gave me an idea using your technique to restore the number plate for my 1950 King Seeley that I messed up during cleanup...the trick is matching the original font. Great that you gave a fun shout out to Chris. An amazing man...like you!

    • @SwitchAndLever
      @SwitchAndLever  6 ปีที่แล้ว +1

      How bad is it messed up? Maybe you can take a good quality photo of it and trace what you can't match through fonts? There are also good services like WhatTheFont and Identifont that can help you identify fonts, but oftentimes for these old vintage stuff the fonts were simply not standardized how they are now, and many of those old fonts may never even have been digitized.

    • @pjhalchemy
      @pjhalchemy 6 ปีที่แล้ว

      Very. I used a 10:1 cleaner solution (10 H2O) in my ultrasonic to remove a decade worth of being in a horse stall on the ground. It was fine until I pulled it out and touched it...all the enamel came off but the Stamped numbers are fine. Luckily I got it's sister Band Saw with it which is pristine (well covered) and its plate is identical & pristine. The originals are .050 AL but for all the time and energy I've put into restoring it been kicking around a brass one with the OEM detail and numbers that I can put a nice Restored by and date for whom ever gets it next...likely my son. They don't build them like these anymore and hopefully never sees a horse stall again.
      Your etching gave me the idea to hi res scan the one from the Band Saw and the stamped numbers from the dead one (again archaic font) and trace them if necessary in AI or ACAD to get it as original as possible. Thanks much for the Font links, I'll check them out and if none match, on to the tedious tracing. Thanks again! Always enjoy your work and videos!

  • @reforzar
    @reforzar 6 ปีที่แล้ว +2

    Brilliant!

  • @danthemakerman
    @danthemakerman 6 ปีที่แล้ว

    Fantastic video! I'm going to have to try this using my vinyl cutter.

    • @SwitchAndLever
      @SwitchAndLever  6 ปีที่แล้ว +1

      Hmm, interesting! I'm sure it would work, but I wonder how fine details you could get with it.

  • @RedSmith
    @RedSmith 6 ปีที่แล้ว +13

    Guess what I'm working on...?😊 Great tutorial and cool result. Well done Sir!

    • @SwitchAndLever
      @SwitchAndLever  6 ปีที่แล้ว +1

      Hahaha! Shoooooow meeee!!! 😄

    • @RedSmith
      @RedSmith 6 ปีที่แล้ว +1

      Switch & Lever Sunday of everything goes well 😊

  • @yourunclesam6780
    @yourunclesam6780 3 ปีที่แล้ว

    Awesome result.I di it!.Thanks

  • @DIYGarage_SoCal
    @DIYGarage_SoCal 3 ปีที่แล้ว

    Nicely done!

  • @mog-gyveroneill2500
    @mog-gyveroneill2500 5 ปีที่แล้ว +4

    ...me from the beach in Weston-super-Mare, England (much too cold!) !! Lol! I only own an ink jet printer, but a shed load of Sharpies, so will try this, everything will have brass labels!!

    • @ifell3
      @ifell3 4 ปีที่แล้ว

      Hahahahaha

  • @evilutionltd
    @evilutionltd 5 ปีที่แล้ว +2

    A 4th option that I used was to cut the design on a vinyl cutter, stick it to the metal and etch. Same way I did a few PCBs too.

    • @ryanbarker5217
      @ryanbarker5217 5 ปีที่แล้ว

      i was wondering if that would work. the ex kept our trophy/plaque shop and she does tons of vinyl, mostly for shirts, but can do other materials, too. we could use an oxidizing solution on brass plates that would turn the engraved parts black very quickly.

  • @nowayjerk8064
    @nowayjerk8064 6 ปีที่แล้ว

    happy new year and thanks for sharing

  • @MLFranklin
    @MLFranklin 5 ปีที่แล้ว

    Really cool process and video.

  • @MLFranklin
    @MLFranklin 6 ปีที่แล้ว

    Great video. Thanks for sharing it.

  • @sheloves13
    @sheloves13 5 ปีที่แล้ว +3

    Great video! Appreciate the comparisons and the disposal information.

  • @recurveninja
    @recurveninja 6 หลายเดือนก่อน

    Using the closed-cell foam as a float is very clever. Another thing that will speed up etching is agitation - either mechanically (stirring or tilting) or with an aquarium bubbler. Parts that sit still etch slower because the etchant in contact with a given surface becomes saturated and thus etches slower, so you want to give it a swish to make sure that "stale" etchant is getting replaced frequently.
    Another option for exposing photoresist, used by some who make PCBs, is to use a dry-film photoresist that gets ironed or laminated on, and then exposing it with an MSLA 3d resin printer.

  • @kjellski
    @kjellski 3 ปีที่แล้ว

    Fantastic video man! I guess I'm a bit late to the party, but it's still great - thanks for the tips on properly discarding the leftovers as well!

  • @debaserNYC
    @debaserNYC 6 ปีที่แล้ว

    excellent video. I especially like the comments on clean up as other similar videos omit that part. thanks!

  • @martin.musale
    @martin.musale 6 ปีที่แล้ว

    Beautiful !!

  • @TheDutyPaid
    @TheDutyPaid 6 ปีที่แล้ว

    So happy to see the printer method worked so well. Now everyone has a laser to play with.

  • @citylockapolytechnikeyllcc7936
    @citylockapolytechnikeyllcc7936 5 ปีที่แล้ว

    Awesome video. I will link this to a forum of my peers

  • @kookyflukes9749
    @kookyflukes9749 6 ปีที่แล้ว

    Clickspring Chris. The engineered presicion voiceover. So clean..........sooooo clean and crisp. Nice etching btw.

  • @grantrettke4851
    @grantrettke4851 2 ปีที่แล้ว

    Thanks for the detail and also how to safely dispose of the copper.

  • @ISTOmaker
    @ISTOmaker 6 ปีที่แล้ว

    Very good, thanks.

  • @westonmeans7321
    @westonmeans7321 5 ปีที่แล้ว

    Lol I came here from watching the etching video on Clickspring with the photo resist. This seems like a really good DIY alternative if you don't want a whole setup.

  • @xanderguldie
    @xanderguldie 5 ปีที่แล้ว

    Awesome video, I also saw a video where they uses a type of plastic foil designed to use for etching. It uses UV light to transfer the protective layer. This method was very easy to use.

    • @SwitchAndLever
      @SwitchAndLever  5 ปีที่แล้ว +1

      Yeah, it's called a UV resist, and does offer a little better result, but it requires the film and a source of UV light. The sun works, but is not reliable.

  • @ifell3
    @ifell3 4 ปีที่แล้ว

    When I use this method I will be posting a link in my video to this useful piece of resource!!

  • @usamazahid1
    @usamazahid1 3 ปีที่แล้ว

    Excellent video

  • @mrdavidurquhart
    @mrdavidurquhart 4 ปีที่แล้ว +1

    THIS is how you show how to make something. Bravo!!

  • @glennextra
    @glennextra 6 ปีที่แล้ว

    excellent instruction !!!

  • @hohmmicrophones
    @hohmmicrophones 2 ปีที่แล้ว +1

    This is the most comprehensive and informative video on this topic i've seen. I've been using the toner transfer method on aluminium for the branding on my product, and am thinking of offering a premium brass version so it's awesome to discover I can use similar processes. Also I never thought of using a laser to create the mask on a painted coating. I think i've gotta start using this approach as the printer and heating method has a high failure rate for me due to 'ghosting' and pinholes.
    Thank you very much for sharing your knowledge :)

    • @SwitchAndLever
      @SwitchAndLever  2 ปีที่แล้ว

      My pleasure! I checked out your stuff and you make some really high quality and gorgeous microphones! Let me know how it works out for you 🙂

    • @brba
      @brba 2 ปีที่แล้ว

      Inkjet won't work, this is done with a laser printer. Laser toner is a thermoplastic that can be transferred with heat or solvent, inkjet ink is not.

  • @Cactusworkshopchannel
    @Cactusworkshopchannel 6 ปีที่แล้ว +2

    excellent video 100%!! super cool to include the whole lifetime of the project (disposal and recycling) fantastic! why did the special laser paint fail? again super great job

    • @SwitchAndLever
      @SwitchAndLever  6 ปีที่แล้ว

      I honestly don't know. I'm guessing something in the paint was attacked by the acid. The coating bonds with the brass (or steel) which it is laser etched onto, and it's tough to the point of needing to be sanded off if you want it gone. My assumption is that whatever they use to make this special paint doesn't hold up to ferric chloride. I did another test off camera and had the same result, so all things considered it's most definitely an issue with the paint+acid.

  • @PeteBrubaker
    @PeteBrubaker 6 ปีที่แล้ว +1

    Beautiful work! The toner transfer method produces an amazing result. With such a high resolution, I bet you could do simple gradients and patterns using dithering. If it works well, it might be possible to do a dithered photograph.

    • @SwitchAndLever
      @SwitchAndLever  6 ปีที่แล้ว +3

      Indeed, though I wouldn't do so high resolution. You can look at etched printing plates which were commonly used in letterpress printing up until the '80s for inspiration. I would recommend checking out the short movie "The Collection" on Vimeo, by Adam Roffman about a collection of old printing plates with some beautiful shots of plates displaying this halftone patterning. I think that quality is about the highest you can expect working.

  • @joshwarner5676
    @joshwarner5676 6 ปีที่แล้ว

    The clickspring cameo was spot on

  • @timberdish
    @timberdish 6 ปีที่แล้ว

    Very cool!! Great vid man :-)

  • @DaniloAbrao20
    @DaniloAbrao20 2 ปีที่แล้ว

    Amazing video! You give me a great idea with paint and laser. I will test it.

  • @que_dijo
    @que_dijo 2 ปีที่แล้ว

    this si well explained, thank you brother! GruSSe

  • @muhammadmerajuddin6012
    @muhammadmerajuddin6012 5 ปีที่แล้ว

    wonderful nice ,well done sir

  • @adolfogomez-herrera1348
    @adolfogomez-herrera1348 3 ปีที่แล้ว

    great will be trying Friday.

  • @skiptracer8703
    @skiptracer8703 6 ปีที่แล้ว

    thanks for the tutorial

  • @rajoooprakash2465
    @rajoooprakash2465 6 ปีที่แล้ว

    wow! Amazing! Video... I Thank you very much. Really helpful video for starting hobby as business! please do post more... Rajoo

  • @doc.voltold4232
    @doc.voltold4232 6 ปีที่แล้ว

    Will use this on my kt120 tube amp. Thanks mate. Subbed

    • @SwitchAndLever
      @SwitchAndLever  6 ปีที่แล้ว

      Cool! Would love to see the results! Shoot me a message when you've made it 🙂

  • @enriquegonzalez2802
    @enriquegonzalez2802 6 ปีที่แล้ว

    Superb!

  • @gerisyandrayusman241
    @gerisyandrayusman241 5 ปีที่แล้ว

    Thanks from Java Indonesia!!

  • @muhammedanshas1763
    @muhammedanshas1763 5 ปีที่แล้ว

    thank you for the video

  • @syedalishanzaidi1
    @syedalishanzaidi1 5 ปีที่แล้ว

    Beautifully done video, very instructive and useful for people wanting to try it out for themselves.
    I have learned a great deal from it, and may want to try it out one day. Thank you very much!! I have a question here: If I had a sheet of A4 or A3 size paper with printed text on it, can it be engraved onto a copper plate using your techniques? Please respond. Thank you.

  • @reilly3771
    @reilly3771 5 ปีที่แล้ว +1

    I'm curious as to what grit sandpaper you used?
    I seem to have a lot of scratches on mine. The polishing compounds will remove the paint.

  • @Mosfet510
    @Mosfet510 5 ปีที่แล้ว

    I've used glossy photo paper for pcb's and it worked well and was wondering if it would work on brass too? I got a pack of them at the $ store and it worked first time for the circuit boards with the iron on process. Good video.

  • @JaakkoF
    @JaakkoF 6 ปีที่แล้ว +2

    One method more is to do as in making a PCB. You spray the positive or negative etch resist on to your part and let it dry. Then have the design printed on a transparent sheet as black as you can get. Put the print against the etch resistant surface, shine UVA light on it enough (experimenting needed, usually 5-10 mins), remove the transparent sheet, develope the etch resist in sodium hydroxide solution (lye) and finally etch away :) Works always, doesn't creep under the resist much.

    • @SwitchAndLever
      @SwitchAndLever  6 ปีที่แล้ว +1

      Yes, this is the traditional way of doing it, however the method I showcase doesn't require any special materials or tools. You can even forgo the laminator and use a clothes iron instead.

    • @jjbailey01
      @jjbailey01 6 ปีที่แล้ว +2

      Most of the UV/photo resist materials will expose in simple sunlight. No special light exposure setup needed. And if spraying stuff isn't your thing, photoresist film is available. This also has the benefit of being able to reuse your printout. You can use inkjet or laser printer to print on transparency film. You could even use dot-matrix if you still have one of those. This method is less specialty tool intensive since you don't need a heat source other than the sun. This may be difficult for cave dwellers though.

  • @SargonKasto
    @SargonKasto 6 ปีที่แล้ว

    Åh herregud vilket bra avsnitt!

  • @bayugedesukarnosukarno9322
    @bayugedesukarnosukarno9322 4 ปีที่แล้ว

    Love it

  • @Badgerworkshop
    @Badgerworkshop 6 ปีที่แล้ว

    That is great. Now I want a plaque on everything I make.

    • @SwitchAndLever
      @SwitchAndLever  6 ปีที่แล้ว

      I can only recommend it! It really classes up everything!

  • @darwi4
    @darwi4 ปีที่แล้ว

    This is perfect for my needs. I have many sign plates that would have cost an arm and a leg to have made in order to comply with boat safety regs. I will get a laser printer and make them myself. (May also look at the cost of a small vinyl letter cutter as one of the responses mentions good results.)

  • @alexandramarberry1023
    @alexandramarberry1023 ปีที่แล้ว

    FYI, a strong base is better for disposing of a body than a strong acid is. Acid can take a few days to dissolve a body, but lye heated to 300 degrees Fahrenheit can dissolve a body in about 3 hours.

  • @DesignBuildExecute
    @DesignBuildExecute 6 ปีที่แล้ว +2

    Microwave the etchant for a few seconds to heat it and that will speed the process up. I do this for PCB etching.

    • @SwitchAndLever
      @SwitchAndLever  6 ปีที่แล้ว +2

      I did this in the workshop at my previous workplace. I think they would have objected to me microwaving ferric chloride in the kitchen 😄