UV testing and Cutting Glass (Optional) - Revision history

Aplstudent: /* Checking for Tempered Glass */

2019-03-09T19:41:17Z

Checking for Tempered Glass

← Older revision		Revision as of 19:41, 9 March 2019
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	[[File:CarWindowPolarization.jpg]]		[[File:CarWindowPolarization.jpg]]

			If you do not have the option of going outside, put on a pair of polarizing sunglasses or find a polarizing filter and look at the glass while holding it up to a bright computer/phone screen. The light of the computer/phone will be enough to reveal stress lines/spots in the glass if it is tempered.

	Another way to tell is to check the edges of the glass. Tempered glass typically has very smooth, glossy edges while untempered glass (annealed glass) may have rougher edges.		Another way to tell is to check the edges of the glass. Tempered glass typically has very smooth, glossy edges while untempered glass (annealed glass) may have rougher edges.

Aplstudent: /* Cutting the Glass */

2019-03-03T00:46:54Z

Cutting the Glass

← Older revision		Revision as of 00:46, 3 March 2019
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	The last step is to roughly polish the sharp edges. There are a number of polishing pads in a cabinet below the sink on the right in the glass shop. Use the lowest grit pad, the green one labeled #1 as shown below:		The last step is to roughly polish the sharp edges. There are a number of polishing pads in a cabinet below the sink on the right in the glass shop. Use the lowest grit pad, the green one labeled #1 as shown below:

	[[File:]]		[[File:Polishing Pads.png]]

	Now, rub the side with metal circles on the edges of the glass. You will feel these edges become less sharp. Polish these edges until you are confident you will not be cut by them. Your glass is now ready to be used in the UV curing chamber.		Now, rub the side with metal circles on the edges of the glass. You will feel these edges become less sharp. Polish these edges until you are confident you will not be cut by them. Your glass is now ready to be used in the UV curing chamber.

Aplstudent: /* Cutting the Glass */

2019-03-03T00:45:30Z

Cutting the Glass

← Older revision		Revision as of 00:45, 3 March 2019
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	[[File:Breaking Glass with Pliers.png]]		[[File:Breaking Glass with Pliers.png]]

	Once you have the glass aligned, squeeze the pliers firmly, if you have untempered glass and made a good score line the glass should easily break along the line. The last step is to polish the edges.		Once you have the glass aligned, squeeze the pliers firmly, if you have untempered glass and made a good score line the glass should easily break along the line.

			The last step is to roughly polish the sharp edges. There are a number of polishing pads in a cabinet below the sink on the right in the glass shop. Use the lowest grit pad, the green one labeled #1 as shown below:

			[[File:]]

			Now, rub the side with metal circles on the edges of the glass. You will feel these edges become less sharp. Polish these edges until you are confident you will not be cut by them. Your glass is now ready to be used in the UV curing chamber.

Aplstudent: /* Cutting the Glass */

2019-03-03T00:27:32Z

Cutting the Glass

← Older revision		Revision as of 00:27, 3 March 2019
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	[[File:Breaking Glass with Pliers.png]]		[[File:Breaking Glass with Pliers.png]]

			Once you have the glass aligned, squeeze the pliers firmly, if you have untempered glass and made a good score line the glass should easily break along the line. The last step is to polish the edges.

Aplstudent: /* Cutting the Glass */

2019-03-03T00:25:28Z

Cutting the Glass

← Older revision		Revision as of 00:25, 3 March 2019
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	Once you've scored your glass you'll want to cut it. Cutting it is really just a controlled break using the pliers. The glass breaking pliers are used to apply pressure along the scored line and crack the glass. Most of the pliers have a black line on the tip where you should align the score mark on the glass. Below is a photo of how to align your glass for the break:		Once you've scored your glass you'll want to cut it. Cutting it is really just a controlled break using the pliers. The glass breaking pliers are used to apply pressure along the scored line and crack the glass. Most of the pliers have a black line on the tip where you should align the score mark on the glass. Below is a photo of how to align your glass for the break:

	[[File:]]		[[File:Breaking Glass with Pliers.png]]

Aplstudent: /* Cutting the Glass */

2019-03-03T00:24:09Z

Cutting the Glass

← Older revision		Revision as of 00:24, 3 March 2019
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	Below is a picture of the set up you'll want for cutting glass:		Below is a picture of the set up you'll want for cutting glass:

	[[File:]]		[[File:Scoring Glass Setup.png]]

	The piece of glass should lie on the white plastic grid with the orange grid clips holding it in place. The silver, clip mounted straight edge should then be placed in the grid clips on top of your glass, this will allow you to use the scoring tool to make a straight cut. Once the glass is held in place, dip the tip of the scoring tool in oil and score the glass along the straight edge. To score glass you want to only make one pass. Start at the top and then, pressing firmly, roll the tool along the glass using the straight edge as a guide. You should see a white line appear as you score and you will feel the glass crunch a little as you roll. If you do not press firmly enough the glass will not "crunch" as you roll the tool along, if you press too hard you may accidentally break the glass (this is unlikely though).		The piece of glass should lie on the white plastic grid with the orange grid clips holding it in place. The silver, clip mounted straight edge should then be placed in the grid clips on top of your glass, this will allow you to use the scoring tool to make a straight cut. Once the glass is held in place, dip the tip of the scoring tool in oil and score the glass along the straight edge. To score glass you want to only make one pass. Start at the top and then, pressing firmly, roll the tool along the glass using the straight edge as a guide. You should see a white line appear as you score and you will feel the glass crunch a little as you roll. If you do not press firmly enough the glass will not "crunch" as you roll the tool along, if you press too hard you may accidentally break the glass (this is unlikely though).

Aplstudent: /* Cutting the Glass */

2019-03-03T00:22:49Z

Cutting the Glass

← Older revision		Revision as of 00:22, 3 March 2019
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	==Cutting the Glass==		==Cutting the Glass==

	The best place to cut your glass is the UO Craft Center's glass ~~shop~~.		The best place to cut your glass is the UO Craft Center's glass studio. If you bring your sheet of glass to the craft center and ask to use the glass studio a glass tech will be able to assist you in cutting your glass to size. Note: only making straight cuts yield better results (make a single 90° cut will be very difficult, instead make two straight cuts); also note that if you score your glass and cannot break it with the glass breaking pliers you may have tempered glass (at this point I would recommend looking for a different piece of glass).

			Put on safety glasses before you begin.

			Below is a picture of the set up you'll want for cutting glass:

			[[File:]]

			The piece of glass should lie on the white plastic grid with the orange grid clips holding it in place. The silver, clip mounted straight edge should then be placed in the grid clips on top of your glass, this will allow you to use the scoring tool to make a straight cut. Once the glass is held in place, dip the tip of the scoring tool in oil and score the glass along the straight edge. To score glass you want to only make one pass. Start at the top and then, pressing firmly, roll the tool along the glass using the straight edge as a guide. You should see a white line appear as you score and you will feel the glass crunch a little as you roll. If you do not press firmly enough the glass will not "crunch" as you roll the tool along, if you press too hard you may accidentally break the glass (this is unlikely though).

			Once you've scored your glass you'll want to cut it. Cutting it is really just a controlled break using the pliers. The glass breaking pliers are used to apply pressure along the scored line and crack the glass. Most of the pliers have a black line on the tip where you should align the score mark on the glass. Below is a photo of how to align your glass for the break:

			[[File:]]

Aplstudent: /* Checking for Tempered Glass */

2019-03-02T23:47:01Z

Checking for Tempered Glass

← Older revision		Revision as of 23:47, 2 March 2019
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	[[File:Glassedges.jpg]]		[[File:Glassedges.jpg]]

	If your glass does not have any of these indicating signs of being tempered, you should have a high level of confidence that your glass is not tempered.		If your glass does not have any of these indicating signs of being tempered, you should have a high level of confidence that your glass is not tempered. Unfortunately, the only way to be 100% sure whether or not the glass is tempered is to cut it.

	==Checking the Glass for UV Transparency==		==Checking the Glass for UV Transparency==

Aplstudent: /* Checking for Tempered Glass */

2019-03-02T23:45:36Z

Checking for Tempered Glass

← Older revision		Revision as of 23:45, 2 March 2019
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	[[File:CarWindowPolarization.jpg]]		[[File:CarWindowPolarization.jpg]]

	Another way to tell is to check the edges of the glass. Tempered glass typically has very smooth, glossy edges while ~~non tempered~~ glass (annealed glass) may have rougher edges.		Another way to tell is to check the edges of the glass. Tempered glass typically has very smooth, glossy edges while untempered glass (annealed glass) may have rougher edges.

	[[File:Glassedges.jpg]]		[[File:Glassedges.jpg]]

Aplstudent: /* Checking for Tempered Glass */

2019-03-02T23:45:17Z

Checking for Tempered Glass

← Older revision		Revision as of 23:45, 2 March 2019
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	Another way to tell is to check the edges of the glass. Tempered glass typically has very smooth, glossy edges while non tempered glass (annealed glass) may have rougher edges.		Another way to tell is to check the edges of the glass. Tempered glass typically has very smooth, glossy edges while non tempered glass (annealed glass) may have rougher edges.

	[[File:]]		[[File:Glassedges.jpg]]

	If your glass does not have any of these indicating signs of being tempered, you should have a high level of confidence that your glass is not tempered.		If your glass does not have any of these indicating signs of being tempered, you should have a high level of confidence that your glass is not tempered.