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by DonMcClennen
Mon Dec 31, 2018 11:05 pm
Forum: Techniques and Tools
Topic: Damming a curved line
Replies: 7
Views: 1471

Re: Damming a curved line

In order to get a nice rounded edge on top layer edge corners your glass, contact with dam must be about 1/16" above dam. This is easily accomplished using 1/8" thick fibre around inside of dam. If your dam is higher than glass you will get needlepoints at top edge corners) If you are just...
by DonMcClennen
Mon Dec 31, 2018 7:30 pm
Forum: Techniques and Tools
Topic: Damming a curved line
Replies: 7
Views: 1471

Re: Damming a curved line

I fuse up to 12 layers (1 1/2") fully dammed ... I ramp at 200F up to bubble sqeeze... never had thermal shock.
by DonMcClennen
Sun Dec 30, 2018 5:49 pm
Forum: Techniques and Tools
Topic: Damming a curved line
Replies: 7
Views: 1471

Re: Damming a curved line

If your concern is thermal shock then my approach would be to really slow down your firing ramps below 1000F so the glass has time to heat and cool evenly regardless of the dams.
by DonMcClennen
Fri Dec 14, 2018 4:31 pm
Forum: Techniques and Tools
Topic: Removing sticker 'ghost marks'
Replies: 11
Views: 2262

Re: Removing sticker 'ghost marks'

Most of the suggestions offered seem to be related to sticker glue removal (eg: paint thinner, lacquer etc.)... not the "ghosts" you describe. I have experienced the ghosts you refer to when I have removed a small pricing label after it has remained on a piece in my studio for some years. ...
by DonMcClennen
Thu Dec 06, 2018 12:41 pm
Forum: Techniques and Tools
Topic: colourless glue
Replies: 8
Views: 1940

Re: colourless glue

google UV glass to glass adhesive.. lots of it available!
by DonMcClennen
Sat Nov 24, 2018 3:16 pm
Forum: Photos and Stuff
Topic: The Latest Bowl
Replies: 8
Views: 1707

Re: The Latest Bowl

Our thoughts are with you, your neighbors,and all the people of Paradise who have suffered such horrible devastation and loss. When you find your way forward and rebuild we (on this board) will be anxious to see another beautiful creation like the one you have shared with us in this post. Best wishe...
by DonMcClennen
Wed Sep 19, 2018 3:36 pm
Forum: Techniques and Tools
Topic: mold
Replies: 4
Views: 1785

Re: mold

It looks like a simple job for a shop that builds custom Hot Rods. They have forming rollers and maybe even a SS source.
by DonMcClennen
Sun Aug 26, 2018 4:21 pm
Forum: Newcomer Forum
Topic: Potmelt from transparent glass
Replies: 5
Views: 2423

Re: Potmelt from transparent glass

You will need to have your pot filled with at least 50% clear plus stick with lighter shades of transparent glass!
by DonMcClennen
Mon Aug 20, 2018 5:38 pm
Forum: Techniques and Tools
Topic: TaoFiber - Fiber Paper
Replies: 8
Views: 2793

Re: TaoFiber - Fiber Paper

I was wondering why Marty said he can't use Thinfire on his Vermiculite shelf. I have been using Thinfire exclusively on 2 different Vermiculite shelves for 15yrs+ with no problems of any kind. It gives a very smooth surface underside (onetime use only). :D
by DonMcClennen
Sun Jun 03, 2018 5:00 pm
Forum: Business Topics
Topic: Glass/Cash Survey
Replies: 4
Views: 2702

Glass/Cash Survey

In the just published "New Glass Review#39" there is quite an extensive survey of $ earnings for those in various fields involving glass eg: artists, business, industry, etc. The detailed summary report will be interesting to many here on this board. My initial take away is: this, generall...
by DonMcClennen
Wed May 09, 2018 1:54 pm
Forum: Techniques and Tools
Topic: Hairline 'crack'
Replies: 18
Views: 4093

Re: Hairline 'crack'

At what temp did you clearly see the crack? It is not going to be "Healed" (refused) if it was less than about 1350 on the downside of the firing ramp. If it started by a brick was it stuck to brick?
by DonMcClennen
Thu Apr 26, 2018 5:08 pm
Forum: Techniques and Tools
Topic: Slumping issues
Replies: 17
Views: 4023

Re: Slumping issues

You state that there was no number code on the glass. I do not recognize this as a "96" color... Because there is so much Spectrum out there that is not tested fusable I would suggest this glass is not "96".
by DonMcClennen
Fri Mar 09, 2018 5:00 pm
Forum: Kiln Casting
Topic: Whiting as texture mold
Replies: 1
Views: 1488

Re: Whiting as texture mold

I have mixed whiting with water to a thick cream consistency and applied it to coated kilnshelf with a cake decorating icing sqeezebag to form tree images. Sets to a hard enough image to set 1/4" glass on top. (coat with kilnwash before placing glass on top) You should probably experiment!
by DonMcClennen
Sat Mar 03, 2018 12:36 pm
Forum: Newcomer Forum
Topic: cutting a mulite kiln shelf with a skill saw
Replies: 2
Views: 2080

Re: cutting a mulite kiln shelf with a skill saw

Use a blade made for concrete or ceramics.
by DonMcClennen
Tue Feb 20, 2018 5:55 pm
Forum: Kiln Casting
Topic: Is it possible to fix a broken shelf
Replies: 1
Views: 1188

Re: Is it possible to fix a broken shelf

You will not be able to repair it so it can be lifted in and out of the kiln in one piece. I suggest instead you level and assemble it (the shelf) in place in the kiln, cover with 1/8" or 1/4" fibreboard or fill cracks with Kaolin then build your glass artwork in the kiln on this assembled...
by DonMcClennen
Mon Feb 05, 2018 2:47 pm
Forum: Techniques and Tools
Topic: thicker and thinner together- ok?
Replies: 13
Views: 4109

Re: thicker and thinner together- ok?

I have hung several panels with 2 cables or chains over many years similar in size and weight you are stating. I drilled 3/16" dia. holes in 1/2" to 3/4" from each edge. Always had good results... I use the spherical diamond drills... drill holes under water.. supported on underside.....
by DonMcClennen
Sat Jan 20, 2018 9:18 pm
Forum: Techniques and Tools
Topic: Recommendations for bench grinder?
Replies: 9
Views: 3607

Re: Recommendations for bench grinder?

Buy some 60 grit belts for your WBS... it will remove a lot of glass fast!!
by DonMcClennen
Wed Jan 17, 2018 6:02 pm
Forum: Techniques and Tools
Topic: Recommendations for bench grinder?
Replies: 9
Views: 3607

Re: Recommendations for bench grinder?

Do to the water needed for grinding this is NOT a reasonable approach. I would recommend you consider a wet belt sander to expand your capabilities. With a variety of belt grits you can grind and polish perfect bowl rims (square, round, oval, etc.) plus numerous other applications. A WBS will allow ...
by DonMcClennen
Tue Dec 26, 2017 9:29 pm
Forum: Techniques and Tools
Topic: How do I full fuse keeping the original shape...
Replies: 5
Views: 2355

Re: How do I full fuse keeping the original shape...

there is also the flip and fire option... if the new square piece is placed against the shelf with the original composition inverted on top it should pretty much retain it's square shape when fused in.. then you will have to re-flip and again refire!
by DonMcClennen
Fri Dec 08, 2017 3:55 pm
Forum: Techniques and Tools
Topic: cutting dichroic
Replies: 2
Views: 1606

Re: cutting dichroic

Score on the back to eliminate damaging dichro coating

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