WarmGlass.com

optically bond them and then grind your telescope lens. You would want to use some optically clear glass as well not float glass. It is not a telescope lens. Plate glass has a lower melting point than other glasses and is cheap. I don't need help with what it will be used for. I just need castable ...

Ed Cantarella wrote:OP - Google glass table tops - Someone will custom cut a piece that size for less than $75 each. Maybe double down and get a few to save on shipping.

Yes, I know about those. I want to make my own. I love building. I bored by buying the final product. Design is 2/3 the fun.

Unsolicited advice - don't try this(molding your own). Nobody will 'post' you up the total learning curve required. I'll do most the reading myself. I just need some keywords, leads, and general answers as to what I'm up against. I have a lot of other knowledge. These are just my current sticking p...

I've read over 100 topic related forum posts since posting here.

I also plan to anneal it, but that is a different thread perhaps, or just a book page.


I've edited my above posts to be more specific. I'm looking for specific castable refractor sources. Dental stone is the is the main one.

I read that plate melts at 1800 F. Is that true? How long do I need to keep a stack of 4 half inch 5.5x5.5" sheets at 1900 F to get out the bubbles and have the glass smoothly and flatly fill an 11" round mould? Maybe that depends on the thermal mass of the mould and whether it is warmed u...

So far I've found dental stone and its generic, but I don't know what other options there are or how much it will shrink or expand during curing.


I read that construction cement will explode at high temperature.

Hello. I want to melt plate glass down to several plate glass disks 11" diameter and 5/8" thick, with no visible bubbles. I want to use a mould in a kiln to do it. I'm aware that I can purchase glass disks for $75. 90% of the joy is building it myself. I'm reading many posts to educate mys...