CraftWEB Hot Glass Talk  

Go Back   CraftWEB Hot Glass Talk > Hot Glass > General Hot Glass Discussion

Reply
 
Thread Tools Display Modes
  #1  
Old 02-21-2020, 05:46 AM
Joseph Schembri Joseph Schembri is offline
Registered User
 
Join Date: Feb 2018
Location: Nottingham UK
Posts: 5
Joseph Schembri is on a distinguished road
Thanks guys

Hey guys first of all I would like to thank you for all the information and advice that you posted. I just tested my first gloryhole build. I built the square design. It went up to 2250 in half an hour, I reduced the propane and went down to a stable 2100 for the next hour.burner never went up more than 120. I used a kg of propane for one hour (about 130 pence) . It is smoking a bit around the burner, could it be because the door is a bit tight I only have a couple of.mm between the door and face. Although I've got more than 30 years experience in glass it was mostly working cold and a little bit of fusing and slumping. I decided that I want to start blowing, and me doing everything backwards wanted to build my equipment first. Haha studio built, glory hole ready wire melter nearly done and soon to start annealer.
When I get everything ready will get a few lessons and start practicing. Lessons in the uk cost a lot about 250 british pounds a day. That's why I wanted my own equipment.
Attached Images
File Type: jpg Hole.jpg (82.4 KB, 63 views)
Reply With Quote
  #2  
Old 02-21-2020, 06:59 AM
Pete VanderLaan's Avatar
Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
 
Join Date: Apr 2002
Location: Chocorua New Hampshire
Posts: 21,933
Pete VanderLaan is on a distinguished road
2150F is really cold for getting a gloryhole to do what it needs to do. You won't be able to shape effectively unless it's hotter.

The furnace can be 2150, not the glory hole.
__________________
Where are we going and why am I in this basket?
Reply With Quote
  #3  
Old 02-21-2020, 07:32 AM
Joseph Schembri Joseph Schembri is offline
Registered User
 
Join Date: Feb 2018
Location: Nottingham UK
Posts: 5
Joseph Schembri is on a distinguished road
It reached 2250 in about 30 min and I reduced the propane. I'll try it tomorrow and see how high it would go full blast.
Reply With Quote
  #4  
Old 02-21-2020, 07:51 AM
Pete VanderLaan's Avatar
Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
 
Join Date: Apr 2002
Location: Chocorua New Hampshire
Posts: 21,933
Pete VanderLaan is on a distinguished road
Does it have forced air? It really should. The type door you have is just like mine and while it works pretty well when mostly closed, it cools off really quickly when opened more than half. I like it but my work no longer relies on a that late heat. Heat has to be thought of as a lubricant.

The best glassworker over there is in Northern Ireland but he doesn't teach.
Do yourself a favor and cover the castable on the door and anywhere that doesn't get abraded with an inch of fiber. Then rigidize that. It will substantially help performance. Or if you prefer White board. Don't ever cover the steel.
__________________
Where are we going and why am I in this basket?
Reply With Quote
  #5  
Old 02-21-2020, 08:01 AM
Pete VanderLaan's Avatar
Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
 
Join Date: Apr 2002
Location: Chocorua New Hampshire
Posts: 21,933
Pete VanderLaan is on a distinguished road
If the door had a bit of a redesign making for a railing at the top for a grooved wheel to track in it, then that steel up there would be recessed from the front plate casting. That's true at the bottom as well. That would allow you to better insulate above and below the door. It adds up. Currently the central posts at the top and bottom won't allow for insulation. It may make a fifty degree difference it temperature. That's a lot.
__________________
Where are we going and why am I in this basket?
Reply With Quote
  #6  
Old 02-21-2020, 08:04 AM
Joseph Schembri Joseph Schembri is offline
Registered User
 
Join Date: Feb 2018
Location: Nottingham UK
Posts: 5
Joseph Schembri is on a distinguished road
Yes it does, I'm using a pine ridge burner. I'll cover the door and castable with fibre and see what happens. How hot should the hole be, a lot of guys say the hotter the better.....but what would your recommended temp be?
Reply With Quote
  #7  
Old 02-21-2020, 08:08 AM
Joseph Schembri Joseph Schembri is offline
Registered User
 
Join Date: Feb 2018
Location: Nottingham UK
Posts: 5
Joseph Schembri is on a distinguished road
Not a problem I'll redesign the door
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 07:35 PM.


All published comments within these message boards are the opinions of its contributor and does not represent
the opinion(s) of the owner(s) of this website. Please see the Terms of Use file for more details.

Books to Help Artists Avoid Online Scams: Top 10 Email Scams | Social Media Scams

Powered by vBulletin® Version 3.7.2
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
CraftWEB.com. Opportunity Network. 2008. All Rights Reserved.