Glass Toolbox
This Toolbox was created to help glass artists who want to use Modeling Glass and Standard Bullseye glass to help with estimating materials needed for a project.
This toolbox helps a glass artist using by supplying various time-saving tools for working with Modeling Glass and Standard Bullseye including :
Generate batch recipes for Modeling Glass. (MG - Recipe Generators)
Reverse calculating the volume that can be filled by a known amount of Modeling Glass. (MG - Reverse)
Calculating the volume of common shapes. (Std Glass Tools - Volumes)
Predict the diameter of a Pressed Glass disk by weight or size. (Std Glass Tools - Pressed Glass)
Check if two different colors react with each other. (Std Glass Tools - Reactions)
This tool is written for Modeling Glass and Bullseye Glass frit. Other glasses might behave the same but have not been tested.
It can accept inputs as whole numbers, decimals, fractions and mixed numbers.
There are limitations:
Recipes get iffy for really small batches of less than 30 grams in weight.
There are limits on the size of some input dimensions. You'll get an error message if they are too large or too small.
For Modeling Glass there are 5 different starting points 4 of which generate recipes:
Supply the inner diameter and outer diameter for a spherical Bowl.
Supply an arbitrary volume for an irregular shape with Custom.
Supply the diameter and thickness for a Disk.
Supply the length, width and thickness for a Slab.
Supply the weight of Modeling Glass to reverse calculate a volume and shapes with Reverse.
There are other tools for some common Standard Glass calculations.
Browse Bullseye color chart and use the gradient tool to mix colors Colors.
Straight volume calculations for the common shapes of Bowl, Disk and Slab. These also include a calculation for the weight of std. Bullseye glass to fill the volume.
Pressed Glass predicters starting with either a weight of std. Bullseye glass or size of a glass blank.
Reactions search and comparison tools to check for reactions between Bullseye glasses.
Glass Toolbox supplies a set of calculators to automatically generating Modeling Glass batch recipes for common shapes or irregular shapes, reverse engineering a shape from a known weight of Modeling Glass.
It will help you answer questions like
"How much Modeling Glass do I need to make a disk ten inches in diameter? "
"What size piece can I make with my leftover Modeling Glass?"
Example Bowl calculation
Calculate the volume of a cylinder with a 3 1/2 inches inside diameter and outside diameter 4 inches.
inside diameter 3 1/2 in
outside diameter 4 in
Total volume 5.53 in³ Total weight 6.39 oz
Given the weight of Modeling Glass, I can create a batch.
The recipe will be approximately a standard batch.
Example custom calculation
Calculate a known volume given in cubic centimeters.
5 5/8 in³
Total volume 5 5/8 in³ Total weight 6.5 oz.
Given the weight of Modeling Glass, I can create a batch.
The recipe will be approximately a standard batch.
Example disk calculation
Calculate the volume of a disk with a 5 3/5 inches diameter and 1/4 inches high.
diameter 5 3/5
height 1/4
MG total volume: 6.16 in3 MG total weight: 7.12 ounces
Given the weight of Modeling Glass, I can create a batch.
The recipe will be approximately a standard batch.
Example reverse calculation
I have 6 1/2 ounces of Modeling Glass and I need to know how large a space I can fill.
input 6 1/2 ounces
Metric units output
Volume: 92.1 cm3
Disk dimensions: radius: 5.4 cm, height: 1 cm
Slab dimensions: length: 9.6 cm, width: 9.6 cm, height: 1 cm
Imperial units output
Volume: 5.620 in3
Disk dimensions: radius: 2.126 in, height: 0.394 in
Slab dimensions: length: 3.8 in, width: 3.8 in, height: 0.394 in
Example slab calculation
Calculate the volume of a slab in centimeters
Length 5 1/3
Width 4.25
Thickness 1/4
MG total volume: 5.35 in3 MG total weight: 6.19 ounces
Given the weight of Modeling Glass, I can create a batch.
The recipe will be approximately a standard batch.
It also supplies a set of Standard glass tools for generating glass weights for volumes, viewing color palettes, checking reactions between Bullseye glasses and estimating pressed glass dimensions.
It will help you answer questions like
"What weight of standard glass will fill my 10 inch diameter stainless steel mold?"
"Will the two Bullseye colors I've chosen react with each other?"
"What size will my pressed glass be after pressing?"
Bowl Volume - Two concentric half spheres that make up a spherical bowl.
Calculate the volume of a spherical bowl shape.
The formula for the volume between two concentric half spheres is as follows.
bowl_volume = (4/3𝝅 * ( outer_(diameter/2)3 - inner_(diameter/2)3 ) ) / 2
Example Calculation:
Calculate the volume of a cylinder with a 3 1/2 inches inside diameter and outside diameter 4 inches.
inside diameter 3 1/2 in
outside diameter 4 in
Total volume 5.53 in³ Total weight 6.39 oz
Disk Volume - Calculate the volume of a flat cylinder or disk.
cylinder_volume = π * cylinder_(diameter/2)² * cylinder_height
Example Calculation:
Start with the dimensions for a disk blank of standard Bullseye glass.
starting diameter = 6 in
starting height = 1/2 in
desired ending height. = 4 mm
Disk total volume: 14 1/4 in3
Disk total weight: 20 7/16 oz
Pressed Disk dimensions
diameter : 10 3/4 in
height : 1/4 in
Predict pressed glass disk dimensions from starting size disk.
Example calculation:
Start with the dimensions for a disk blank of standard Bullseye glass.
starting diameter = 6 in
starting height = 1/2 in
desired ending height. = 4 mm
Disk total volume: 14 1/4 in3
Disk total weight: 20 7/16 oz
Pressed Disk dimensions
diameter : 10 3/4 in
height : 1/4 in
Predict pressed glass disk dimensions from starting weight of glass.
Example calculation:
Start with the dimensions for a disk blank of standard Bullseye glass.
weight of glass to use = 16 oz
desired ending height. = 4 mm
Disk total volume: 11 1/8 in3
Disk total weight: 16 oz
Pressed Disk dimensions
diameter : 9 1/2 in
height : 3/16 in