1. Select Hub Size:
Select "No Hubs" to get the true "chord" length for each strut, which is the full distance for the strut between each geodesic dome vertex.
For most dome construction methods, you will use the "No Hubs" selection.
With our Zip Tie Domes Hub Design, the geodesic dome vertex is located in the middle of our "Center Ring".
When using our Hubs, the width of our Center Ring must be added to the strut length to give the true geodesic dome dimensions.
Select Standard 4" Hubs for calculating domes with our 4" Standard Hubs or Dual Covering Hubs, which have a 2.375" Center Ring. These hubs are used with 1" PVC pipe for struts.
Select Super 6" Hubs for calculating domes with our new 6" Super Hubs, which have a 3.5" Center Ring. These hubs are used with 1.5" PVC pipe for struts.
Select Mega 8" Hubs for calculating domes with our proposed 8" Mega Hubs, which will have a 4.5" Center Ring. These hubs will be used with 2" PVC pipe for struts.
2. Feet or Meters
Click the button for "Meters" if you are using metric measurements.
3. Data Entry:
Enter a number with or without a decimal fraction in any of the number fields on the left. (For example, enter "5" or "3.3333")
Click the Calculate Button. All of the other numbers will be automatically calculated.
The Blue Struts are always the longest struts. If you know your longest strut length, enter your data for the longest strut length in the Blue Strut field.
To build a strong dome, the longest strut should not be more than 6' long.
Cost Calculation and Material Utilization Chart
The default "Length of Pipe" for cutting your struts has been set to 10'. You can change this to 20' or whatever length of pipe you have to cut for your struts.
You can also update the "Cost Per Pipe" amount, and click the Calculate field, and the "Total Cost of Materials" amount will be calculated at the bottom of this section.
If you are cutting 4' struts, consider using 20' lengths of pipe, as there will be less waste as compared to cutting 4' lengths from 10' pipe.
Length of Pipe:
Cost Per Pipe:
Red "A" Strut Units Entered:
0
Feet and Inches:
0'0"
Number of Pipes needed to Create (30) Red "A" Struts:
0
Number of Red "A" Struts Produced From Each Uncut Pipe:
0
Waste for First 0 Pipes after Cutting 0 Struts Each:
0 = 00"
<-
Number of Red "A" Struts Created from the first 0 Pipes:
0
Number of Red "A" Struts Created from the Last Pipe:
0
Waste on the Last Pipe after Cutting 0 Strut(s):
0
<-
Total Waste in Creating 30 Red "A" Struts:
0
Yellow "B" Strut Units Entered:
0
Feet and Inches:
00"
Number of Pipes needed to Create (30) Yellow "B" Struts:
0
Number of Yellow "B" Struts Produced From Each Uncut Pipe:
0
Waste for First 0 Pipes after Cutting 0 Struts Each:
0 = 00"
<-
Number of Yellow "B" Struts Created from the first 0 Pipes:
0
Number of Yellow "B" Struts Created from the Last Pipe:
0
Waste on the Last Pipe after Cutting 0 Strut(s):
0
<-
Total Waste in Creating 30 Yellow "B" Struts:
0
Brown "C" Strut Units Entered:
0
Feet and Inches:
0'0"
Number of Pipes needed to Create (60) Brown "C" Struts:
0
Number of Brown "C" Struts Produced From Each Uncut Pipe:
0
Waste for First 0 Pipes after Cutting 0 Struts Each:
0 = 00"
<-
Number of Brown "C" Struts Created from the first 0 Pipes:
0
Number of Brown "C" Struts Created from the Last Pipe:
0
Waste on the Last Pipe after Cutting 0 Strut(s):
0
<-
Total Waste in Creating 60 Brown "C" Struts:
0
Green "D" Strut Units Entered:
0
Feet and Inches:
0'0"
Number of Pipes needed to Create (70) Green "D" Struts:
0
Number of Green "D" Struts Produced From Each Uncut Pipe:
0
Waste for First 0 Pipes after Cutting 0 Struts Each:
0 = 00"
<-
Number of Green "D" Struts Created from the first 0 Pipes:
0
Number of Green "D" Struts Created from the Last Pipe:
0
Waste on the Last Pipe after Cutting 0 Strut(s):
0
<-
Total Waste in Creating 70 Green "D" Struts:
0
Orange "E" Strut Units Entered:
0
Feet and Inches:
00"
Number of Pipes needed to Create (70) Orange "E" Struts:
0
Number of Orange "E" Struts Produced From Each Uncut Pipe:
0
Waste for First 0 Pipes after Cutting 0 Struts Each:
0 = 00"
<-
Number of Orange "E" Struts Created from the first 0 Pipes:
0
Number of Orange "E" Struts Created from the Last Pipe:
0
Waste on the Last Pipe after Cutting 0 Strut(s):
0
<-
Total Waste in Creating 70 Orange "E" Struts:
0
Black "F" Strut Units Entered:
0
Feet and Inches:
00"
Number of Pipes needed to Create (80) Black "F" Struts:
0
Number of Black "F" Struts Produced From Each Uncut Pipe:
0
Waste for First 0 Pipes after Cutting 0 Struts Each:
0 = 00"
<-
Number of Black "F" Struts Created from the first 0 Pipes:
0
Number of Black "F" Struts Created from the Last Pipe:
0
Waste on the Last Pipe after Cutting 0 Strut(s):
0
<-
Total Waste in Creating 80 Black "F" Struts:
0
Blue "G" Strut Units Entered:
0
Feet and Inches:
00"
Number of Pipes needed to Create (35) Blue "G" Struts:
0
Number of Blue "G" Struts Produced From Each Uncut Pipe:
0
Waste for First 0 Pipes after Cutting 0 Struts Each:
0 = 00"
<-
Number of Blue "G" Struts Created from the first 0 Pipes:
0
Number of Blue "G" Struts Created from the Last Pipe:
0
Waste on the Last Pipe after Cutting 0 Strut(s):
0
<-
Total Waste in Creating 35 Blue "G" Struts:
0
Purple "H" Strut Units Entered:
0
Feet and Inches:
00"
Number of Pipes needed to Create (30) Purple "H" Struts:
0
Number of Purple "H" Struts Produced From Each Uncut Pipe:
0
Waste for First 0 Pipes after Cutting 0 Struts Each:
0 = 00"
<-
Number of Purple "H" Struts Created from the first 0 Pipes:
0
Number of Purple "H" Struts Created from the Last Pipe:
0
Waste on the Last Pipe after Cutting 0 Strut(s):
0
<-
Total Waste in Creating 30 Purple "H" Struts:
0
Gray "I" Strut Units Entered:
0
Feet and Inches:
0'0"
Number of Pipes needed to Create (20) Gray "I" Struts:
0
Number of Gray "I" Struts Produced From Each Uncut Pipe:
0
Waste for First 0 Pipes after Cutting 0 Struts Each:
0 = 00"
<-
Number of Gray "I" Struts Created from the first 0 Pipes:
0
Number of Gray "I" Struts Created from the Last Pipe:
0
Waste on the Last Pipe after Cutting 0 Strut(s):
0
<-
Total Waste in Creating 20 Gray "I" Struts:
0
Total Waste for All Struts:
0
Number of Uncut Pipe/Materials Needed:
0
Total Cost of Materials @ $4.50 Each:
$
Weight Chart | 1" PVC Sch.40 | 1" PVC Sch.80 | 1.5" PVC Sch.40 | 2" PVC Sch.40 | 3/4" EMT | 1" EMT | 5/8" Iron Rebar #5 | 3/4" Iron Rebar #6 | 1/2" Basalt Rebar #4 | 5/8" Basalt Rebar #5 |
---|---|---|---|---|---|---|---|---|---|---|
Lbs Per Linear Ft | .32 | .41 | .51 | .68 | .435 | .64 | 1.043 | 1.502 | .237 | .46 |
30 "A" Struts | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
30 "B" Struts | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
60 "C" Struts | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
70 "D" Struts | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
70 "E" Struts | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
80 "F" Struts | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
35 "G" Struts | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
30 "H" Struts | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
20 "I" Struts | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Total Weight of Struts | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Weight of Hubs, Rings, Zip Ties | 85.8 | 85.8 | 212.9 | 381.7 | 85.8 | 85.8 | 85.8 | 85.8 | 85.8 | 85.8 |
Total Dome Weight | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Red "A" Chord Factor: .19814743
Yellow "B" Chord Factor: .23179025
Brown "C" Chord Factor: .22568578
Green "D" Chord Factor: .24724291
Orange "E" Chord Factor: .25516701
Black "F" Chord Factor: .24508578
Blue "G" Chord Factor: .26159810
Purple "H" Chord Factor: .23159760
Gray "I" Chord Factor: .24534642
--------------------------------------------
Altitude Xb | Decimal | 0 |
---|---|---|
Feet and Inches | 0 0" |
Altitude Xa | Decimal | 0 |
---|---|---|
Feet and Inches | 0 0" |
A-B-A Triangle Edge |
Measurement | Strut Length |
Center Ring Hub Width |
Triangle Edge Total Length |
---|---|---|---|---|
A |
Decimal | 0 | 0 | 0 |
Feet and Inches | 0 0" | 0" | 0 0" | |
B |
Decimal | 0 | 0 | 0 |
Feet and Inches | 0 0" | 0" | 0 0" |
Surface Area for Each A-B-A Triangle | 0 Square |
---|
Altitude Xb | Decimal | 0 |
---|---|---|
Feet and Inches | 0 0" |
Altitude Xc | Decimal | 0 |
---|---|---|
Feet and Inches | 0 0" |
C-B-C Triangle Edge |
Measurement | Strut Length |
Center Ring Hub Width |
Triangle Edge Total Length |
---|---|---|---|---|
B |
Decimal | 0 | 0 | 0 |
Feet and Inches | 0 0" | 0" | 0 0" | |
C |
Decimal | 0 | 0 | 0 |
Feet and Inches | 0 0" | 0" | 0 0" |
Surface Area for Each C-B-C Triangle | 0 Square |
---|
Altitude Xc | Decimal | 0 |
---|---|---|
Feet and Inches | 0 0" |
Altitude Xd | Decimal | 0 |
---|---|---|
Feet and Inches | 0 0" |
Altitude Xh | Decimal | 0 |
---|---|---|
Feet and Inches | 0 0" |
C-D-H Triangle Edge |
Measurement | Strut Length |
Center Ring Hub Width |
Triangle Edge Total Length |
---|---|---|---|---|
C |
Decimal | 0 | 0 | 0 |
Feet and Inches | 0 0" | 0" | 0 0" | |
D |
Decimal | 0 | 0 | 0 |
Feet and Inches | 0 0" | 0" | 0 0" | |
H |
Decimal | 0 | 0 | 0 |
Feet and Inches | 0 0" | 0" | 0 0" |
Surface Area for Each C-D-H Triangle | 0 Square |
---|
Altitude Xd | Decimal | 0 |
---|---|---|
Feet and Inches | 0 0" |
Altitude Xe | Decimal | 0 |
---|---|---|
Feet and Inches | 0 0" |
Altitude Xf | Decimal | 0 |
---|---|---|
Feet and Inches | 0 0" |
D-E-F Triangle Edge |
Measurement | Strut Length |
Center Ring Hub Width |
Triangle Edge Total Length |
---|---|---|---|---|
D |
Decimal | 0 | 0 | 0 |
Feet and Inches | 0 0" | 0" | 0 0" | |
E |
Decimal | 0 | 0 | 0 |
Feet and Inches | 0 0" | 0" | 0 0" | |
F |
Decimal | 0 | 0 | 0 |
Feet and Inches | 0 0" | 0" | 0 0" |
Surface Area for Each D-E-F Triangle | 0 Square |
---|
Altitude Xg | Decimal | 0 |
---|---|---|
Feet and Inches | 0 0" |
Altitude Xe | Decimal | 0 |
---|---|---|
Feet and Inches | 0 0" |
E-G-E Triangle Edge |
Measurement | Strut Length |
Center Ring Hub Width |
Triangle Edge Total Length |
---|---|---|---|---|
E |
Decimal | 0 | 0 | 0 |
Feet and Inches | 0 0" | 0" | 0 0" | |
G |
Decimal | 0 | 0 | 0 |
Feet and Inches | 0 0" | 0" | 0 0" |
Surface Area for Each E-G-E Triangle | 0 Square |
---|
Altitude Xi | Decimal | 0 |
---|---|---|
Feet and Inches | 0 0" |
Altitude Xf | Decimal | 0 |
---|---|---|
Feet and Inches | 0 0" |
F-I-F Triangle Edge |
Measurement | Strut Length |
Center Ring Hub Width |
Triangle Edge Total Length |
---|---|---|---|---|
F |
Decimal | 0 | 0 | 0 |
Feet and Inches | 0 0" | 0" | 0 0" | |
I |
Decimal | 0 | 0 | 0 |
Feet and Inches | 0 0" | 0" | 0 0" |
Surface Area for Each F-I-F Triangle | 0 Square |
---|
Altitude Xg | Decimal | 0 |
---|---|---|
Feet and Inches | 0 0" |
G-G-G Triangle Edge |
Measurement | Strut Length |
Center Ring Hub Width |
Triangle Edge Total Length |
---|---|---|---|---|
G |
Decimal | 0 | 0 | 0 |
Feet and Inches | 0 0" | 0" | 0 0" |
Surface Area for Each G-G-G Triangle | 0 Square |
---|
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Alba gu bráth - Scotland Until Judgment
"But to see her was to love her,
Love but her, and love forever.
Had we never lou'd sae kindly,
Had we never lou'd sae blindly,
Never met - or never parted -
We had ne'er been broken hearted"
Robert Burns - 1791