What is the talk about 'root away' and such? Then I saw mention of 'getting the paper off'...I was just wondering if people are doing the paper/photo transfer thing, and if so, how exactly. I'm going to try to 'read back' in this thread to see if I can just find the stuff myself, but it would help if someone could just let me know here at the end of the thread, it would be so much easier. Thanks all!
Okay, an update with the requested information.
I'm wanting to make a Farnsworth from scratch. The one engraving place I talked to quoted me 350 for two plates. Snort, I can figure out etching cheaper than that.
First off I needed a clean image. I grabbed one of the examples that people had posted in this thread. Sadly it wasn't really as clear as I wanted, so into photoshop I dived. I'm fairly handy with photoshop, so cleaning up the image to match what I wanted (black and white only, no grey) wasn't too hard.
Then I reversed the image (white became black) and mirrored it. (left to right.
Once I had a mask image I was happy with I took it into MS Visio for printing. I made up two images, one that just had the holes so that I can etch away the holes (at least that's my theory at this point) Oh, and I add alignment marks to make sure that I can line up two sheets of masking material.
After working around with several papers and plastics, I settle on printing a mask out onto overhead transparency plastic. I didn't feel like getting 100 sheets, so Kinkos had the best price (75 cents each for 10)
When printing it out, I adjusted the density up, and printed it out at the best resolution.
Styling. Looks really nice.
At the hardware store I'd picked up a couple of short 1/2 inch boards of hard wood, intended to use as stair bits. I'm using those as an Ironing board.
Oh, and I picked up a cheap cake pan at a garage sale for 50 cents. I will use that for cooling and later etching.
And I have a very nice Iron left behind by an ex-gf. Tefelon coated and it heats up fast.
I'm skipping over my unsuccessful attempts at transferring, I managed to bake several layers beyond the ink onto brass. Feh.
Jumping back to the successful attempts, Attach the plastic masks (ensuring that the ink side is facing the brass! Use blue painter's tape to make sure that it won't move around. Attach both sides.
Crank the iron up to max temp, and ready the oven mitts.
Press down while ironing. Stay in one place a long time.
Five minutes of ironing doesn't seem to be enough time.
Ten or more minutes seems to have really good results.
Fifteen or more is stellar! Your mileage may vary.
After you decide "Work is done!" use the oven mitts to put the brass plate and plastic into the water filled pan.
Sizzle. Let cool briefly. Remove plastic and tape.
Dry carefully with a cloth.
Now touch up the mask with oil based sharpies. They are the ones in the glass case at art supply stores. I picked up a thick one and a super fine one. Black should be just fine, but you are welcome to use colored ones.
I had a score this weekend, found a 10 amp battery charger at an estate sale nearby for $12. (doing the happy Claudia dance) Way better than an old train transformer.
I've the root away (really copper sulfate) ready, a pan that's ready and I've been thinking about how not to start fires by melting wires with my etching station.
Oh, and I have a separate building to do etching in from my house.
The above is what I can report on so far, I'll report more on my progress as it occurs.
My goal is to have one or two done for Christmas, as I want to give my niece a Farnsworth.
I've a couple of friends who also want Farnsworths, so I'm likely to make or supervise a number of them getting made.
Hope everything I put above makes sense! I'm very low on sleep after this weekend.
Senjak