Search found 747 matches

by Kevin Midgley
Sat Mar 09, 2024 11:56 am
Forum: Techniques and Tools
Topic: Glass carving gun (abrasive blasting)
Replies: 5
Views: 6424

Re: Glass carving gun (abrasive blasting)

the sandwitch.com may have what you want but Firefox says the site is insecure American site

Find your abrasive supplier locally.
Manus.com
Overseas commodities.
Canadian sites
by Kevin Midgley
Fri Jan 26, 2024 1:20 pm
Forum: Techniques and Tools
Topic: glass colorants
Replies: 15
Views: 14476

Re: glass colorants

grinding the frit smaller in a tumbler might be your only option.
by Kevin Midgley
Wed Dec 13, 2023 1:12 pm
Forum: Kiln Casting
Topic: Tack fusing holey moley molds: Any reasons not to?
Replies: 1
Views: 18698

Re: Tack fusing holey moley molds: Any reasons not to?

People tack fuse all the time but I will never do it. Glass wants to be whole or in bits but not half whole and half bits. The chance of stresses not being accounted for by a LONG annealing time are too high for me. I don't want a piece to crack months after a firing because the annealing was not su...
by Kevin Midgley
Tue Nov 21, 2023 5:48 pm
Forum: Techniques and Tools
Topic: Alternative to Thinfire
Replies: 22
Views: 137761

Re: Alternative to Thinfire

according to an online source, The mass of Earth’s crust is 59 percent silica, the main constituent of more than 95 percent of the known rocks. Therefore what dust doesn't contain silica? You do realize you can easily make your own shelf paper substitute but it is more work and still more expensive ...
by Kevin Midgley
Tue Nov 21, 2023 5:38 pm
Forum: Techniques and Tools
Topic: Piece cracked on slump
Replies: 2
Views: 20695

Re: Piece cracked on slump

Less heatwork, slower heating and longer annealing. Bullseye says three firings. Based on my experience with the early formulations of Bullseye where the COE could shift, my policy is to do no more than 2 firings. That requires rethinking what shapes you make, the molds you use and firing schedules....
by Kevin Midgley
Sun Nov 19, 2023 9:19 pm
Forum: Techniques and Tools
Topic: Alternative to Thinfire
Replies: 22
Views: 137761

Re: Alternative to Thinfire

wear a respirator. You should do going inside any kiln anyway. Do you walk down the street? Do cars stir up dust and you breathe it? No difference. :lol:
by Kevin Midgley
Sat Nov 18, 2023 11:41 am
Forum: Techniques and Tools
Topic: Alternative to Thinfire
Replies: 22
Views: 137761

Re: Alternative to Thinfire

Use a standard pottery studio kiln wash as a base. Add a whole bunch of Alumina hydrate to weaken it. Mix it up and test it. Here's the game. You want the kiln wash to stick to the shelf and the glass if it is an opaline glass and not to cathedrals but in either case, to easily wash off. It can be d...
by Kevin Midgley
Mon Jul 10, 2023 8:51 pm
Forum: Techniques and Tools
Topic: Glastar Pressure Pot replacement parts
Replies: 2
Views: 17949

Re: Glastar Pressure Pot replacement parts

this site may have the answers.
TheSandWitch.com
by Kevin Midgley
Wed Jul 05, 2023 11:56 am
Forum: Techniques and Tools
Topic: Drop out
Replies: 1
Views: 12109

Re: Drop out

Heat it up super slowly and you should be fine.
by Kevin Midgley
Tue May 09, 2023 11:47 am
Forum: Newcomer Forum
Topic: Casting from container glass
Replies: 5
Views: 19266

Re: Casting from container glass

Glass moves with time and temperature so you are going to have to observe what happens in Your kiln. You may be surprised at just how hot you have to take the glass to do what you are proposing to make and have it come out as a disk or puck. You most likely will not get any liquid flow until you are...
by Kevin Midgley
Mon May 08, 2023 12:14 pm
Forum: Newcomer Forum
Topic: Casting from container glass
Replies: 5
Views: 19266

Re: Casting from container glass

https://www.amazon.com/Firing-Schedules-Glass-Kiln-Companion/dp/0578054957 That will provide you with schedules but to have an understanding of what you are doing, DO NOT just find a schedule in there without reading the whole book's notes, cover to cover a few times. Cheat on the study of the book...
by Kevin Midgley
Fri Apr 21, 2023 10:51 pm
Forum: Techniques and Tools
Topic: Brock Craig has passed on.
Replies: 12
Views: 26931

Re: Brock Craig has passed on.

Irid on Irid was not difficult to achieve if you had access to a sandblaster to remove the irid so that it could be fused together in places. More of a loss was the way he handled foils and his hand hammered Japanese gold foil. Imagine playing with that material now the price of gold has more than d...
by Kevin Midgley
Mon Apr 17, 2023 4:00 pm
Forum: Techniques and Tools
Topic: Brock Craig has passed on.
Replies: 12
Views: 26931

Re: Brock Craig has passed on.

Buttercup as a student of Brock's you will have learned lots. I do hope you did not learn any theories he had about pricing as his too low pricing cost him dearly. Brock's final unsaid and unspoken lesson to us all was, and so far as I know he was unable to pass this along, was to have charged more ...
by Kevin Midgley
Fri Apr 14, 2023 7:16 pm
Forum: Techniques and Tools
Topic: Dl7000
Replies: 1
Views: 4042

Re: Dl7000

don't have one but check for a blown fuse. I managed decades ago to blow a fuse in my Digitry controller.
by Kevin Midgley
Thu Mar 30, 2023 11:10 am
Forum: Techniques and Tools
Topic: Brock Craig has passed on.
Replies: 12
Views: 26931

Re: Brock Craig has passed on.

So Jim what was the class you wanted to take from Brock? Was it one he was prevented from US travel to? You were on the board for a long enough time to 'know everything" weren't you? Perhaps the collective memories of old time board members could help?
by Kevin Midgley
Thu Feb 09, 2023 12:22 pm
Forum: Techniques and Tools
Topic: Rigidizing fibreboard
Replies: 4
Views: 7164

Re: Rigidizing fibreboard

I thought you were not to take boards and blankets to too high a temperature in burnout because of the risks of creating crystobalite. That is why the non specific temperature I posted. It depends hugely on the amount of binder used in the particular material. I once used some building a kiln and bu...
by Kevin Midgley
Tue Feb 07, 2023 6:52 pm
Forum: Techniques and Tools
Topic: Rigidizing fibreboard
Replies: 4
Views: 7164

Re: Rigidizing fibreboard

to whatever burns the binders off. Depends on time and temperature etc. The binder is usually sugar in my experience.
by Kevin Midgley
Wed Jan 25, 2023 3:39 pm
Forum: Techniques and Tools
Topic: Brock Craig has passed on.
Replies: 12
Views: 26931

Brock Craig has passed on.

Posting here so those who were familiar with the old board's carryings on, will remember Brock Craig's words of wisdom and otherwise comments in support of fused glass.
May he rest in peace.
by Kevin Midgley
Mon Dec 19, 2022 7:50 pm
Forum: Kiln Casting
Topic: How do you tell if all kiln wash is removed?
Replies: 3
Views: 25212

Re: How do you tell if all kiln wash is removed?

wash off the rest of the kiln wash and use a tooth brush.
I'd never use Boron. Then you are stuck using it.
Just use Bullseye kiln wash.
by Kevin Midgley
Mon Oct 24, 2022 6:33 pm
Forum: Newcomer Forum
Topic: Grinding
Replies: 1
Views: 16025

Re: Grinding

depends how much roughness there is or if you have hand polished it to smooth. 220 grit could get you close. Warning the slightest amount of grinding residue will show up. Keep wet and clean well.