Search found 372 matches

by DonMcClennen
Fri Jul 22, 2022 1:52 pm
Forum: Techniques and Tools
Topic: Brown spots
Replies: 11
Views: 8202

Re: Brown spots

suggestion.. flip your shelf over.. underside should not be compromised!
by DonMcClennen
Fri Feb 04, 2022 10:31 am
Forum: Community Projects
Topic: Fridge Magnets - Want mine?
Replies: 3
Views: 22428

Re: Fridge Magnets - Want mine?

Why not put them in a flower pot on your front porch and let the neighborhood kids help them selves.. I keep a supply of fused "gems" out and they are very popular!!
Don
by DonMcClennen
Wed Dec 29, 2021 10:40 am
Forum: Techniques and Tools
Topic: slump 17x11 piece 5/16” thick over ceramic wave mold.
Replies: 2
Views: 4746

Re: slump 17x11 piece 5/16” thick over ceramic wave mold.

this mold slumps very easy.. 1 hr. hold should be suffice. Your multiple ramps probably not needed.. why not 250 to 1250, hold, then AFAP to1000, then 80 to anneal, then 80 to 750 then off?
Works for me.
by DonMcClennen
Wed Dec 29, 2021 10:33 am
Forum: Newcomer Forum
Topic: Adhesives for securing frit and little glass components
Replies: 2
Views: 10620

Re: Adhesives for securing frit and little glass components

burns off around 300F ..don't expect it to hold stuff in place for fusing
by DonMcClennen
Sun Dec 05, 2021 11:18 am
Forum: Techniques and Tools
Topic: Shrinkage during fusing attemp
Replies: 3
Views: 5366

Re: Shrinkage during fusing attemp

When fusing, the glass wants to be 1/4" thick.. If it is thinner (one layer 1/8") it will pull in.. If it is thicker eg: 3/8" it will spread out..You can control size dimensions by controlling thickness. Experience is a good teacher!!
by DonMcClennen
Fri Nov 12, 2021 3:32 pm
Forum: Techniques and Tools
Topic: Fusing problem
Replies: 2
Views: 4415

Re: Fusing problem

1000 to 1340??? very aggressive ramp up is asking trouble (thermal shock) your going to get a lot of breakage at that rate.. I suggest a much more relaxed ramp up(250 or 300).. "Speed Kills"
by DonMcClennen
Tue Sep 28, 2021 10:40 am
Forum: Techniques and Tools
Topic: Drill bit attachment
Replies: 8
Views: 6994

Re: Drill bit attachment

Sounds risky!! .. don't think I would trust client with no glassworking experience to "attempt" this. I can think of many possible errors> Must be some glass supplier in a reasonable distance.
by DonMcClennen
Tue May 25, 2021 8:11 pm
Forum: Techniques and Tools
Topic: Crack on slump... Help?
Replies: 2
Views: 10825

Re: Crack on slump... Help?

First-- 1350 will not give you a "full fuse" Second-- I would pay more attention to the "anneal zone" slow down eg: 80dph from 1100 thru to anneal at 950 (45 min.) then 80dph to 800. then ramp down conservatively to 100. AFAP from fuse to anneal is not a good schedule. I don't th...
by DonMcClennen
Tue Mar 02, 2021 12:39 pm
Forum: Jewelry Making
Topic: glue on bales
Replies: 5
Views: 26649

Re: glue on bales

I use a small diamond grinder bit to roughen up contact surface on glass and sand bale to remove production lubricants.. then use E6000 NEVER FAILS!!
by DonMcClennen
Mon Feb 15, 2021 12:14 am
Forum: Techniques and Tools
Topic: gasket material
Replies: 13
Views: 18101

Re: gasket material

I've been opening and closing Brick lids on Brick wall kilns (some as big as 30"x 45") for 30 years.. Never felt the need for a gasket material.
by DonMcClennen
Sun Feb 14, 2021 11:39 am
Forum: Techniques and Tools
Topic: gasket material
Replies: 13
Views: 18101

Re: gasket material

use 1/8" fibre
by DonMcClennen
Fri Jan 22, 2021 1:27 pm
Forum: Techniques and Tools
Topic: Sunshine mixing flux
Replies: 1
Views: 7283

Sunshine mixing flux

Question for Brad.. Around 10 years ago I visited your studio/store in NC and I purchased over a dozen sunshine enamels. I am just now trying them out.. I have a good range of colours .. but it seems I chose "mixing flux" thinking it was white. This will limit my mixing pastels.. What is &...
by DonMcClennen
Sun Nov 08, 2020 4:14 pm
Forum: Board Help
Topic: Board sponsors
Replies: 2
Views: 26788

Board sponsors

Brad what happened to the board sponsors banner at the top of the page?? I always used that as a fast shortcut to Bullseye etc.
by DonMcClennen
Sun Oct 11, 2020 10:52 am
Forum: Photos and Stuff
Topic: Some More Detailed Photos of the Enamels
Replies: 3
Views: 17475

Re: Some More Detailed Photos of the Enamels

Need a ruler in photo to give a sense of scale.. are these 1/2" or 4" or bigger ??
by DonMcClennen
Wed Sep 02, 2020 4:53 pm
Forum: Techniques and Tools
Topic: Light weight Kiln Shelf
Replies: 7
Views: 14016

Re: Light weight Kiln Shelf

Suggestion; consider vermiculite board.. available from Bullseye.. not damaged at easily as fibre... I am using the same one 24"x 40" for over 10years.
Don
by DonMcClennen
Fri Jul 24, 2020 10:25 am
Forum: Techniques and Tools
Topic: bottom heat kiln.
Replies: 11
Views: 13793

Re: bottom heat kiln.

someone once made a wise statement: Glass needs to "see" the heat.. while pottery only needs to "feel" it! That is why elements in glass kiln roof and no multiple shelf layers when firing :) . Don
by DonMcClennen
Thu Jul 23, 2020 8:59 am
Forum: Techniques and Tools
Topic: bottom heat kiln.
Replies: 11
Views: 13793

Re: bottom heat kiln.

I've been firing glass (large and small) going on 30yrs. Always with top elements and a few side ones.. I can think of numerous reasons to not want bottom elements. I suggest you reconsider!
by DonMcClennen
Tue Jul 07, 2020 10:28 am
Forum: Photos and Stuff
Topic: LADY BLUE
Replies: 4
Views: 18774

Re: LADY BLUE

Congratulations HAVI. It is good to see your unique, personal approach to design and display in these fine sculptural works! It is always nice to get recognition for good work! =D>
Don
by DonMcClennen
Thu Jul 02, 2020 2:54 pm
Forum: Techniques and Tools
Topic: FIRE POLISHING
Replies: 11
Views: 11872

Re: FIRE POLISHING

If the piece is the size of a fist then the firing schedule would have to be quite long and controlled to avoid breakage/thermal shock. Such a schedule would cause much all over surface distortion and loss of detail.. It sounds like the best solution is more coldwork polishing.
by DonMcClennen
Thu Jun 11, 2020 11:03 am
Forum: Techniques and Tools
Topic: drop ring fell off center
Replies: 5
Views: 7044

Re: drop ring fell off center

I agree with Brad and Jolly.. could be placement, glass color, etc.. etc. The keeping of records eg: firing time/temp., type and amount of glass, kiln placement etc. is the only way for you learn, move forward, and not repeat that which does not work! I have 2 binders (25 years) full of my firing re...