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Cutting Tips

Glass Scoring Tips
  1. Hold cutter like a pen
  2. Score from edge to edge
  3. Curves are OK, but never try to cut angles
  4. Use the side of your hand for a second point of contact
  5. Keep you score light - like a hair, not a string. You don't want to see a big line of crunched glass when you score.
  6. Invest in a great cutter that you're comfortable with - it will soon repay you in savings of both glass and time

Are the blades for the Taurus 2.2 and Taurus 3.0 interchangeable?
All blades can be used on both saws except the Megablade which is designed exclusively for the Taurus 3.0.

Are there any tools that will reduce hand fatigue or joint strain while I'm cutting glass?
There are several tools that can make stained glass cutting easy and enjoyable. The Cutter's Mate will allow you to make all of the same cuts you can with a regular hand held cutter without the strain caused by applying pressure to the cutter to make an even score. The weighted handle applies the pressure for you while you simply guide the cutter head making consistently great scores that break cleanly and evenly. Delphi also has the Score 1 cutter which is a convenient and small tool that allows you to set the cutter head pressure and guide the glass through, moving the sheet of glass instead of the cutter to make a precision score. Because the pressure is set, you don't have to worry about exerting the downward pressure that can cause muscle strain for some people.

My glass cutter is defective - it leaks oil!
In most cases, if your cutter is leaky, it's not actually a problem with the cutter. Most cutters only require a few drops of oil, so if you use a moderate amount of oil (don't fill it up!), you won't have any leakage problems.

Why is there a little screw sticking out of the top of my running pliers? I noticed only some pliers have it.
Use the screw to set your running pliers to the same thickness as the glass you are breaking. Before you make your cut, set the running pliers onto your glass and gently close them. Tighten the screw all the way down, then back it off about half a turn. This will allow the pliers to close just a little bit smaller than the thickness of your glass, which will help you make a perfect break!

With a bandsaw, do I still need a hand cutter?
Bandsaws are great tools, but they won't entirely replace your hand cutter. Bandsaws can physically cut any shape you can think of, a bandsaw isn't practical for every cut you'll need to make. Bandsaws cut very intricate and tricky cuts, but they are slow for basic cutting (about the speed of a slower sewing machine). For the best (and fastest) results, we recommend using the saw on small or complicated cuts, and using your hand cutter on longer, easier cuts.

I've heard that temperature affects how easy it is to cut glass - is there any truth to this?
Yes. Cold glass is more brittle, which can make it more difficult to cut. Glass is much easier to cut and break when it's warm. If you work in a basement or garage, you may notice it's more difficult to get clean breaks, especially in the winter. Try not to work in areas that are too cold (for your own comfort, too!). Some people also warm their glass up a little: when you're ready to cut out your pieces, pre-warm the glass. I use a plate on a hot plate which is set on the lowest setting.

I'm having trouble cutting front surface mirror, and have tried every trick I know. The glass runs fine for the first inch or so, but then it runs off to the right or left. What am I doing wrong?
Front surface mirror is a hard yet brittle glass. Here's how you can cut front surface mirror...successfully! Use a cutter that is strictly dedicated to cutting mirror so that the wheel stays sharp and unchipped. I also use a Morton surface and Portable Glass Shop.

Before placing the mirror on the surface, position a large piece of craft felt on top of the grid surface to provide a little cushion for the mirror. Straight scores are more successful when the cutter is pulled toward your body. Score lightly and then break the glass gently. The blue plastic coating on the front of the mirror should still be attached to the glass. Being careful not to grind the edges of the glass together, use a sharp blade to cut through the plastic at the break line.

Since you mentioned that your score starts straight and then veers off, there could be a few other things occurring. For a good score, it is important to hold the glass cutter perpendicular (at a ninety degree angle) to the glass while applying light, even pressure. If the cutter strays from this angle, it is possible for the glass to jump off of the score. The other possibility is that your cutter may have a chip on the wheel, which may not be discernible to the naked eye. To determine if this is the case, score across the surface of regular mirror (not the front surface), but don't break it. Since the silvering on regular mirror is on the bottom (or back) side of the glass, it will better reflect and illuminate the score line. Examine your score. Does the score look like a dashed line? If the answer is yes, the cutter wheel is indeed chipped and will affect any glass cutting you do regardless of the type of glass.
Join the discussion Add a comment


Tuesday, July 17, 2018
4 Posts



Wednesday, December 11, 2013
5 Posts

@mosaicsnovice we offer three light boxes. They are all quite simple to use. Simply turn them on, lay your pattern on top and trace the pattern onto your glass right on top of the light box. We don't have directions posted online but they do come inside the box.


Friday, November 15, 2013
1 Post

Your lightbox sounds very interesting. as a glass cutting newbie, any helpful tools are greatly appreciated. Would you please send the instructions?

Elizabeth Burns

Saturday, June 22, 2013
Delphi Expert
118 Posts
Top Contributor Gallery Artist

@Elybelly For the black glass, I suggest our silver marker, item number 5171S. For the white glass, I suggest our black marker item number 5177. When using both of these markers, you will want to apply Mark's Stay item number 50481, in order to keep the marker from washing off while grinding.


Saturday, June 15, 2013
1 Post

SCORE newsletter's recent free pattern was a Monarch butterfly on a hydrangea. 20x20. How can I mark and cut those little tiny pieces of black glass for the edge of the wings? My white markers wash off with water. Do I just grind the shapes rather than trying to cut them? The 62 white spots will be a challenge too - any markers that don't wash off as you grind? Thanks for your help.


Friday, April 5, 2013
22 Posts

@gardenglass The best place to start is by taking into account your height or taking the average height of all artists that would be utilizing the cutting tables. Whether you plan on primarily standing versus sitting (say on a stool) to cut the glass will certainly play a part as well. The average height range of the cutting tables that we have in several places around our building happen to be 34 -38 .


Sunday, March 17, 2013
2 Posts

Could someone advise me on the best height to build a table for cutting glass on?


Sunday, January 27, 2013
1 Post

I am trying to find out whether I need both a for example a tourus 3 ring saw and a ex. the cutters mate. I am trying to reduce cost. are both necessary? or will one or the other do,and which one would be the sufficient one to do the job. Stained glass and fusing project.


Sunday, August 12, 2012
1 Post

I would like the plans to the light box. Please email to [email protected] Thank you


Tuesday, May 29, 2012
2 Posts

Hi, I recently bought the mold to make the pendants and earring sets. I used a kiln wash on the mold, coating 5 times. I fused the glass and now cannot get the glass out of the mold. Any suggestions?