Slumping pasta bowl?
Moderators: Brad Walker, Tony Smith
Slumping pasta bowl?
I am slumping a pasta bowl and gradually getting the results I want.
But I'm at a conundrum of do I let it soak longer or crank up the heat a bit.
The details:
My bowl is 10.5" across and needs to slump 1.5" BE glass
I'm touching bottom with my current schedule but want the glass to settle into the sides more.
My current schedule is:
300° to 1050° hld 5 min
9999 to 1250° hld 50 min
9999 to 960° hld 30 min
So should I soak longer or raise my temperature?
Thanks.
Carla
But I'm at a conundrum of do I let it soak longer or crank up the heat a bit.
The details:
My bowl is 10.5" across and needs to slump 1.5" BE glass
I'm touching bottom with my current schedule but want the glass to settle into the sides more.
My current schedule is:
300° to 1050° hld 5 min
9999 to 1250° hld 50 min
9999 to 960° hld 30 min
So should I soak longer or raise my temperature?
Thanks.
Carla
I'm with Charlie. The books say to slump fast (AFAP) from 1000 to 1300, but I think this is a silly schedule. The best results for me have come from dropping my ramp rate to 100 dph at 1000 and taking two hours to get to 1200. This works for a larger span of over 12", but for smaller pieces you may have to go slower, longer or hotter.charlie wrote:the problem is the middle fell too quickly.
if you do this again, try 50 to 1250 instead of 9999 to 1250.
if it's slumped now, use more time. more temp may cause it to puddle.
Try Charlie's schedule and I bet you'll get great results, but watch the piece when you bend it and see when it's done. That way you will learn the appropriate schedule for that particular mold.
Last edited by Cynthia on Fri Mar 12, 2004 4:14 pm, edited 1 time in total.
congrats. pictures?
i find that the wider the platter, the faster it falls at a lower temp. frequently, if i start at 1150 and go to 1225 at 50/hr on anything larger than about 10" wide, it's slumped all the way before i get to the top temp. the trick is finding the diameter and top temp ratio so that i top out at at the end of the slump time just as it's settling down to the bottom of the mold.
i find that the wider the platter, the faster it falls at a lower temp. frequently, if i start at 1150 and go to 1225 at 50/hr on anything larger than about 10" wide, it's slumped all the way before i get to the top temp. the trick is finding the diameter and top temp ratio so that i top out at at the end of the slump time just as it's settling down to the bottom of the mold.
Okay...here's a photo of the successful slump if I have correctly figured out how to add the picture. The glass is just clear, no purdy colors, as I just wanted to get my slump schedule right.
Carla
http://community.webshots.com/scripts/e ... ity=kJzGDR
Carla
http://community.webshots.com/scripts/e ... ity=kJzGDR