Comments on: Making Bookplates with Electrolytic Etching http://www.maxwellrosspierson.com/2009/04/02/making-bookplates-with-electrolytic-etching/?utm_source=rss&utm_medium=rss&utm_campaign=making-bookplates-with-electrolytic-etching F&D: The personal blog of Maxwell Ross Pierson, about lighting design and making things, and the sorrows ensuing. Wed, 06 Mar 2013 12:03:24 +0000 hourly 1 http://wordpress.org/?v=3.5.1 By: Aight http://www.maxwellrosspierson.com/2009/04/02/making-bookplates-with-electrolytic-etching/comment-page-1/#comment-1894 Aight Mon, 04 Apr 2011 23:22:13 +0000 http://www.maxwellrosspierson.com/?p=408#comment-1894 Wow … that is really nice deep bite. Just wanted to say there is an easier way to etch zinc, mild steel and aluminum which does NOT need electricity because it is electro-chemical in nature and apparently non-toxic … hmmmm … maybe no gass-off!!!??? Check it out: http://www.nontoxicprint.com/etchzincsteelaluminum.htm

]]> By: Max http://www.maxwellrosspierson.com/2009/04/02/making-bookplates-with-electrolytic-etching/comment-page-1/#comment-1092 Max Sat, 02 Oct 2010 04:29:05 +0000 http://www.maxwellrosspierson.com/?p=408#comment-1092 Hey Bruce,
The resistance of a standard metal does increase with temperature, due to increased number of atomic collisions at higher temperatures:
http://en.wikipedia.org/wiki/Electrical_resistance#Temperature_dependence

As a practical matter, if you put an Ohmmeter on a cold bulb, you’ll measure a much lower resistance than the derived value that you would get from measuring current and voltage under load. Something to keep in mind if you’re using incandescent lamps as resistors. Glad you enjoyed the post, thanks for commenting!

]]> By: Bruce Boyes http://www.maxwellrosspierson.com/2009/04/02/making-bookplates-with-electrolytic-etching/comment-page-1/#comment-1091 Bruce Boyes Thu, 30 Sep 2010 19:04:37 +0000 http://www.maxwellrosspierson.com/?p=408#comment-1091 Actually I think the resistance of the hot light bulb tungsten electrode is higher than when it is cold. And as the filament boils off (slowly, but that’s how the insides of vacuum tubes and car light bulbs get shiny gray) the resistance will go up. Turns out you can predict bulb failure that way. That was almost-a-patent years ago. But I digress. Some Day I will measure some AC bulb resistances on and off to really prove this to myself. Thanks for the fun post… makes me want to go play with some chemicals.

]]> By: Max http://www.maxwellrosspierson.com/2009/04/02/making-bookplates-with-electrolytic-etching/comment-page-1/#comment-1087 Max Tue, 14 Sep 2010 00:45:48 +0000 http://www.maxwellrosspierson.com/?p=408#comment-1087 Thanks, Joe!
My understanding is that brass typically uses an acid etch, so you might try adding some vinegar (acetic acid) to the mix, and see if that improves the etch? The zinc plates are available at any good arts supply store, so there’s an option if you’d rather go to that way.
Again, just my understanding here, but I think brass emits considerably more hydrogen gas when you etch, so make sure you work in a well-ventilated space!
Post back if you have any success.

]]> By: mister joe http://www.maxwellrosspierson.com/2009/04/02/making-bookplates-with-electrolytic-etching/comment-page-1/#comment-1086 mister joe Mon, 13 Sep 2010 22:09:44 +0000 http://www.maxwellrosspierson.com/?p=408#comment-1086 this is one of the coolest thing i ever seen i tryed it with brass plate it didnt work out as well as yours. but it was only a test . but thanks very much for the post

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