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St Ives Glass Studio
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 on: April 12, 2019, 06:55:13 PM 
Started by chas - Last post by Zeldazog
As I said, I've got pretty much flat (flat enough for a long stemmed wine glass not to topple over!) with 6mm bullseye on full fuse (it may have been a higher full fuse than I do now, as it was early days - but certainly not 20 degrees over) but I don't get it flat with window glass.

Given that Bullseye recommend going 20 degrees or so over a normal fuse to start getting flatness, I think you've got to look at going  at least 20 degrees over on your float as well.  Float does generally seem to be a bit stiffer than art glass, but it's got to get fully molten at some point....

 on: April 12, 2019, 06:44:03 PM 
Started by chas - Last post by chas
Thanks Dawn, and first some clarification: we’re wanting to make from 6mm float, get a 3mm ‘carve’ and a flat top. Really flat.

We’re currently working at 840/30mins (Nabertherm - of course kilns vary, and our 840 may not be your 840) and so far have good carved relief but a corresponding raised area on top. In effect the glass is draping over the former and staying ‘proud’ except around the edges. We would really like to flatten that out!

As I say, we rather like experimenting, but wondered if it’s a hopeless quest. Anyone solved it?


 on: April 12, 2019, 06:17:38 PM 
Started by chas - Last post by Zeldazog
Hi Chas

Not exactly sure what you're asking, but I do kiln carving with Bullseye and got pretty flat with a normal full fuse - I can't say that it was absolutely perfect, but not far off, and I'm sure a bit longer hold/slightly higher temp would solve it.  I've never needed to go to 825degC, but then again, I wasn't looking for absolute flatness

What I would say is that I kilncarve and usually get reasonably flat results with Bullseye at my kiln's standard full fuse.  But, when I kiln carve with greenhouse or float glass, and *that* standard full fuse, I usually get a bumpier finish.

in both cases, I usually work to 6mm

Given that all kilns are different, I think you probably will have to do that experimenting to find the magic numbers for your kiln.  I don't know if you usually work with float, but I full fuse at around 840.

 on: April 12, 2019, 10:29:14 AM 
Started by chas - Last post by chas
We’re trying (and we don’t mind experimenting) to create a piece from float that has a 3mm ‘indent’ but have yet to find the right combination of top temp/hold/glass thickness to eliminate the usual tell-tale relief on the top side - we’d like it flat.
The very useful Bullseye Tipsheet I found in t’archives
ends at a stage 3 with a tantalising “ at 825/30mins the surface begins to level out...” suggesting higher temperature and/or longer hold and real flatness might be achieved.

Anyone done that? If it was in Bullseye, it would still give us a steer for float...


 on: April 11, 2019, 06:07:31 PM 
Started by Barr313 - Last post by Lakelady
Thanks Barry, you made some smashing beads - it was a lot of fun and you were a model student!  Grin Grin

 on: April 11, 2019, 10:56:12 AM 
Started by Barr313 - Last post by Barr313
Yesterday I spent some time with Jo Turner Rowe on a short course in bead making. I was very impressed with both Jo's skills and teaching ability.
In the three hours I spent with her I learnt more than I could of at home just fumberling my way around how the different glasses react with one another.
This was my primary reason to do the course as I had no experiance of how the different glasses react with each other
I already had some experiance of making what Jo described as minute beads - I used to make lacemakers bobbins and also made a small number of the "square cuts beads" that go on the bobbins.
It took a while to get used to working with a much larger globule of molten glass but with Jo's help and tuition it all went well.
If anyone is looking to learn more then I can recomend Jo 100/%

 on: April 07, 2019, 10:19:59 PM 
Started by Szőke Judit - Last post by Szőke Judit
This is a new free lampwork tutorial.
Watch the video here:

 on: April 03, 2019, 11:18:40 PM 
Started by Szőke Judit - Last post by Szőke Judit
here can you watch my glass bird tutorial on M2.5 mandrel for wood pen or hairpin.
Shop for wood pen or hairpin:

 on: April 02, 2019, 01:47:33 PM 
Started by Szőke Judit - Last post by BeeBeads
Lovely video, thanks for sharing.

 on: April 01, 2019, 03:18:50 PM 
Started by Szőke Judit - Last post by Szőke Judit
New free video tutorial
Watch it here:

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