CraftWEB Hot Glass Talk  

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

Reply
 
Thread Tools Display Modes
  #1  
Old 02-26-2019, 07:12 PM
Franklin Sankar's Avatar
Franklin Sankar Franklin Sankar is offline
Registered User
 
Join Date: Apr 2002
Location: Trinidad, West Indies
Posts: 3,810
Franklin Sankar is on a distinguished road
Punty size

What size punty do you use and for what size piece.
Franklin
Reply With Quote
  #2  
Old 02-27-2019, 06:49 AM
Pete VanderLaan's Avatar
Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
 
Join Date: Apr 2002
Location: Chocorua New Hampshire
Posts: 20,768
Pete VanderLaan is on a distinguished road
Mine are always rolled doughnuts and are hollow in the center. It leaves a mark on the bottom of the piece that looks like a faint life preserver. I grind and polish everything anyways.
__________________
Where are we going and why am I in this basket?
Reply With Quote
  #3  
Old 02-27-2019, 11:35 AM
Mark Rosenbaum's Avatar
Mark Rosenbaum Mark Rosenbaum is online now
Registered User
 
Join Date: Apr 2002
Location: New Orleans, LA
Posts: 1,002
Mark Rosenbaum is on a distinguished road
Two gathers get a step down. Anything bigger gets a matching punty to the pipe. I also use a doughnut shape for mine....
Reply With Quote
  #4  
Old 02-27-2019, 12:56 PM
Franklin Sankar's Avatar
Franklin Sankar Franklin Sankar is offline
Registered User
 
Join Date: Apr 2002
Location: Trinidad, West Indies
Posts: 3,810
Franklin Sankar is on a distinguished road
See there is always new to learn
Thanks
Franklin
Reply With Quote
  #5  
Old 02-27-2019, 03:30 PM
Eben Horton Eben Horton is online now
Registered User
 
Join Date: Apr 2002
Location: Wakefield, RI
Posts: 4,449
Eben Horton is on a distinguished road
I make mine to look like a Q-tip.

cold core and a hot skin is deluxe
__________________
<eben epoiese>
Reply With Quote
  #6  
Old 02-27-2019, 05:51 PM
Franklin Sankar's Avatar
Franklin Sankar Franklin Sankar is offline
Registered User
 
Join Date: Apr 2002
Location: Trinidad, West Indies
Posts: 3,810
Franklin Sankar is on a distinguished road
My interpretation.
Franklin
Attached Images
File Type: jpg image.jpg (53.9 KB, 43 views)
Reply With Quote
  #7  
Old 02-27-2019, 06:33 PM
Pete VanderLaan's Avatar
Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
 
Join Date: Apr 2002
Location: Chocorua New Hampshire
Posts: 20,768
Pete VanderLaan is on a distinguished road
I take a gather and squish it flat on the marver and then, while it's hot, I gently roll that on the marver until it folds out and makes a tiny tube. It's nice to get it perfect but I rarely do it. Then, it gets heated in the gloryhole for about 3 seconds and then applied.

I don't know how that will work on small stuff as in two gathers but for me, it really sticks well, resists falling off until you tap it on the knockoff table and it just falls off.

Your issue is different I suspect. You don't need a magic bullet, you need fundamentals. Your bottom on your piece is too cold. I would advise you to not just look for different processes, look to the basics. Don't make me come down there!
__________________
Where are we going and why am I in this basket?
Reply With Quote
  #8  
Old 02-28-2019, 10:36 AM
Scott Novota's Avatar
Scott Novota Scott Novota is offline
AbbyNormal User
 
Join Date: Jan 2004
Location: Pensacola Florida
Posts: 2,138
Scott Novota is on a distinguished road
We have been doing the cross as of late for unknown reasons. Someone in the shop just started doing them and we never went back I really don't know why.
Reply With Quote
  #9  
Old 02-28-2019, 01:40 PM
Eben Horton Eben Horton is online now
Registered User
 
Join Date: Apr 2002
Location: Wakefield, RI
Posts: 4,449
Eben Horton is on a distinguished road
Quote:
Originally Posted by Scott Novota View Post
We have been doing the cross as of late for unknown reasons. Someone in the shop just started doing them and we never went back I really don't know why.
Do you crucify the Person who gives you a bad one?

Franklin, your sketch is right on.
__________________
<eben epoiese>
Reply With Quote
  #10  
Old 02-28-2019, 05:23 PM
Pete VanderLaan's Avatar
Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
 
Join Date: Apr 2002
Location: Chocorua New Hampshire
Posts: 20,768
Pete VanderLaan is on a distinguished road
Quote:
Originally Posted by Scott Novota View Post
We have been doing the cross as of late for unknown reasons. Someone in the shop just started doing them and we never went back I really don't know why.
****
Ignoring Eben, because it worked. I have thought on this today from the point of surface tension. Have you ever noticed that a hot gather can pick up a murrini easily if it is fresh hot? That won't happen it the little gather has been worked.

I suspect that the "worked punty" which could be in a pipe warmer, or mashed about on a marver has a very different surface tension and it does not grab on to the piece in the same way. In that capacity, I would imagine that a gather that was punched in , hot in the center is completely different in tension than a rolled gather making the same shape.
__________________
Where are we going and why am I in this basket?
Reply With Quote
  #11  
Old 02-28-2019, 06:08 PM
Franklin Sankar's Avatar
Franklin Sankar Franklin Sankar is offline
Registered User
 
Join Date: Apr 2002
Location: Trinidad, West Indies
Posts: 3,810
Franklin Sankar is on a distinguished road
That could very well be it Pete. I hang the piece and when I go back for it , it has lost a lot of heat. I donít flash. At this point Do you think more than 3 sec is required??

I Also asked the question about punty size because bill has very small punties.
My punties are 1/2 . Dia
Franklin
Reply With Quote
  #12  
Old 03-01-2019, 07:23 AM
Pete VanderLaan's Avatar
Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
 
Join Date: Apr 2002
Location: Chocorua New Hampshire
Posts: 20,768
Pete VanderLaan is on a distinguished road
well, punty size is related to the size of the piece. If your punty keeps falling off, it's either that the piece or the punty are too cold. It's most likely the punty, so sure, try heating it up a bit. I always have the sense that your studio is kind of starved for heat in general.

It can also be the case that you are allowing the punty to get cold after it's applied while you work on the piece.
__________________
Where are we going and why am I in this basket?
Reply With Quote
  #13  
Old 03-01-2019, 10:06 AM
Eben Horton Eben Horton is online now
Registered User
 
Join Date: Apr 2002
Location: Wakefield, RI
Posts: 4,449
Eben Horton is on a distinguished road
Quote:
Originally Posted by Pete VanderLaan View Post
****
Ignoring Eben, because it worked.
Ignoring me always works !

What do you mean? Did you try my punty and it worked?? Thatís the typical punty ala murano
__________________
<eben epoiese>
Reply With Quote
  #14  
Old 03-01-2019, 10:26 AM
Pete VanderLaan's Avatar
Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
 
Join Date: Apr 2002
Location: Chocorua New Hampshire
Posts: 20,768
Pete VanderLaan is on a distinguished road
I was responding to Scott and his observation about never going back to another punty and I said "Because it worked". My observation regarding you was in regards to the crucifix.
__________________
Where are we going and why am I in this basket?
Reply With Quote
  #15  
Old 03-01-2019, 10:29 AM
Mark Rosenbaum's Avatar
Mark Rosenbaum Mark Rosenbaum is online now
Registered User
 
Join Date: Apr 2002
Location: New Orleans, LA
Posts: 1,002
Mark Rosenbaum is on a distinguished road
Quote:
Originally Posted by Franklin Sankar View Post
That could very well be it Pete. I hang the piece and when I go back for it , it has lost a lot of heat. I donít flash. At this point Do you think more than 3 sec is required??

I Also asked the question about punty size because bill has very small punties.
My punties are 1/2 . Dia
Franklin
My flash is much longer before I get my punty. I usually do a 7 count and get fresh glass on a new punty. Bill has very small punties, but not everyone is Bill and IIRC, you are using bottle glass which freezes up quickly. Try a longer count, and minimize your movements before sticking-up the piece.
Reply With Quote
  #16  
Old 03-01-2019, 06:38 PM
Larry Cazes Larry Cazes is online now
Registered User
 
Join Date: Feb 2006
Location: San Jose, CA
Posts: 892
Larry Cazes is on a distinguished road
Quote:
Originally Posted by Franklin Sankar View Post
What size punty do you use and for what size piece.
Franklin
My .02 on this franklin. Lately Im doing a lot of puntying with upwards of 3-5 pounds of borosilicate on relatively small boro rods. First thing to consider when Im working on something new is whether I intend to leave a mostly clean scar that can be fire polished out by cold sealing or if I need more strength than that strategy allows in which case I will weld the putty on very hot and plan to leave part of the punty behind and grind off the remainder cold. Both of these have their merits. Until I scale up more beyond 3.5" on my solid spheres Im personally doing cold seals right now. Size? My punties tend to start at 10%-15% or so of the pieces surface. This is just a starting point for me and I adjust based on results. If Im losing pieces I increase the seal area until I reach a size that minimizes the amount of glass that needs to be fire polished but affords the strength I need. I always use punty profiles that have a flared head as that geometry seems to hold heat better and survive longer.
Reply With Quote
  #17  
Old 03-02-2019, 05:20 AM
Franklin Sankar's Avatar
Franklin Sankar Franklin Sankar is offline
Registered User
 
Join Date: Apr 2002
Location: Trinidad, West Indies
Posts: 3,810
Franklin Sankar is on a distinguished road
Itís interesting how there are so many different kinds of punters. It seems like you try different punties and grab the first one that works. interesting process Larry. Thanks. Sometimes I feel I am working with Boro.
When I started loosing more pieces I knew something was wrong. I coul not figure out what I changed.
What works for one person may not work for another. Like Mark says what works for Bill works for Bill Kind of pieces.
Thanks for the replies.
Franklin
Reply With Quote
  #18  
Old 03-04-2019, 06:58 PM
Larry Cazes Larry Cazes is online now
Registered User
 
Join Date: Feb 2006
Location: San Jose, CA
Posts: 892
Larry Cazes is on a distinguished road
Quote:
Originally Posted by Franklin Sankar View Post
Itís interesting how there are so many different kinds of punters. It seems like you try different punties and grab the first one that works. interesting process Larry. Thanks. Sometimes I feel I am working with Boro.
When I started loosing more pieces I knew something was wrong. I coul not figure out what I changed.
What works for one person may not work for another. Like Mark says what works for Bill works for Bill Kind of pieces.
Thanks for the replies.
Franklin
In a lot of ways Boro (33 coe) is more forgiving then 96 coe glass. I prefer working with it.
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 04:19 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 - 2019, Jelsoft Enterprises Ltd.
© CraftWEB.com. Opportunity Network. 2008. All Rights Reserved.