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Do you know about half-tones, line counts, positive and negative films? Do you know any darkroom terminology and procedures? You need to render your image as a film if you want to use the photosensitive films used in producing photographic images by sandblasting (or screen printing and other graphic...

Try this to see my sample of 3/4 inch glass cut through with high pressure sandblasting

http://photos.yahoo.com/eugenelohman

or:
http://f1.pgphotos.yahoo.com/ph/eugenelohman/my_photos

Look at http://www.photobrasive.com

They make a photo process sandblast stencil

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Having technical difficulties with photo album...stay tuned.

You guys are right. It takes a MONSTER to do the cutting I want to do. There has to be a compressor out there that is scaled to the needs of someone who isn't necessarily going to sandblast bridges and ships and who only wants to cut AWAY some glass. I had a shop test-cut a piece of 3/4 inch glass a...

Hey all, I just talked to a man with 50 years experience sandblasting monuments. He says the small 15 lb pressure pots are good and you can do a lot of work with them but the critical factor is having a compressor that delivers a minimum 35 cfm continuously. So it's the volume of air that is importa...

Sandi, I have fired cone 06 ceramic glazes on glass with results I was pleased with. Of course, they are decorative only and not food safe. I haven't fired the copper you asked about and all my examples had the glaze on the surface. It is possible to cap the glaze with another sheet of glass to make...

No problem. Usually, the size of shelf is determined by the size of kiln. A given shelf works for any size project as long as it fits on the shelf and the shelf fits in the kiln. You can order kiln furniture to fit the kiln you buy. As far as I know no math is required other than will the kiln shelf...

There are kiln manufacturers who sponsor this website. Take a look at the kilns at the top of your screen. There are both front and top loaders. I've only had experience with two kilns: the small 16 inch diameter ceramic kiln I used to make pottery and the Denver kiln I have now. A national radio ho...

You're going to get lots of advice. Everyone has their favorite kiln for many reasons. My advice is get the largest kiln you can afford and make sure it has a digital controller and vent to out doors. Do you plan on making some or all of your income with your kiln or will it be a hobby? I don't inte...

Mark Hughes: I just surfed over to Harbor Freight and those smaller pressure pots are very interesting. Do you have personal experience? I want to be able to do both light etching, deep carving and all the way to cutting through 3/4 inch glass. I had a local shop do a test cut for me and it worked s...

Thanks everyone for your advice. I hadn't responded because I was having major problems with my computer. (it's always something, isn't it?) I have shopped at a local tool rental that sells it's "retired" equipment, and what I saw there and what I was told is that I will need no less that ...

I'm looking for an alternative blasting medium to the silicon carbide I usually use. I'll be renting a pressure pot and compresser. The guy at the rental says I can't recycle the medium because it might damage the pressure pump. I told him I was going to do the work in a clean enviornment (you know,...

The stringers are already built and are engineered for glass treads and landings. I'm trying to estimate pricing and have some preliminary figures. It makes me wonder: What are you guys getting for a project like this "out there"? I was planning on stack fusing the treads and laminating th...

I'm interested in the "detachable" feature of the new ring saw. Seems like it can go where the Taurus II can't go like maybe an articulated edge on a large piece of glass that would otherwise be too large for the cutting surface. I read about it on the Gemini website: http://www.geminisaw....

Thanks everyone for the feedback. I'll test-fire a sacrificial sheet. I have a kiln with elements in the lid and can ramp up very quickly. Probably straight up to 1270 then OFF, no hold or soak. I'll flash-vent to 1000 F and then let the kiln cool naturally. I'll crack the lid a bit at 350. I'll be ...

Thanks Tom. I do flash vent down to near anealing temp.
I think I will do a test based on my intuition and experience.

Thank you Rosana. My anealing schedule has worked well at 960, I will try your suggestion. But my question is how fast can I take one layer of double strength to 1270. I can still anneal at your suggested temp.

I'm firing a ceramic lustre on double strength float. Pieces range from 14" x 39" to 13" x 28". I typically fire at 10 degrees F per minute up to 1100 F and then 20 degrees per minute to my target which of course varies. How fast can I go to 1270 degrees F and do I have to follow...

Why bother? 1/4 annealed glass is cheap. You'll probably spend more money in electricity and time than you would just buying new annealed glass that won't have scratches in it. e This reply probably qualifies as a new subject: economics. Yes, Ellen, 1/4" float glass is cheap. So is electricity...