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:
Blue "A" Strut Units Entered:
0
Feet and Inches:
00"
Number of Pipes needed to Create (35) Blue "A" Struts:
0
Number of Blue "A" Struts Produced From Each Uncut Pipe:
0
Waste for First 0 Pipes after Cutting 0 Struts Each:
0 = 00"
<-
Number of Blue "A" Struts Created from the first 0 Pipes:
0
Number of Blue "A" Struts Created from the Last Pipe:
0
Waste on the Last Pipe after Cutting 0 Strut(s):
0
<-
Total Waste in Creating 35 Blue "A" Struts:
0
Red "B" Strut Units Entered:
0
Feet and Inches:
00"
Number of Pipes needed to Create (30) Red "B" Struts:
0
Number of Red "B" Struts Produced From Each Uncut Pipe:
0
Waste for First 0 Pipes after Cutting 0 Struts Each:
0 = 00"
<-
Number of Red "B" Struts Created from the first 0 Pipes:
0
Number of Red "B" Struts Created from the Last Pipe:
0
Waste on the Last Pipe after Cutting 0 Strut(s):
0
<-
Total Waste in Creating 30 Red "B" 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 |
35 Blue "A" Struts | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
30 Red "B" Struts | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Total Weight of Struts (lbs) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Weight of Hubs, Rings, Zip Ties | 14.8 | 14.8 | 36.6 | 65.7 | 14.8 | 14.8 | 14.8 | 14.8 | 14.8 | 14.8 |
Total Dome Weight (lbs) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
(See 2V Manual for Details)
1. Assemble the Foundation Ring.
Top View
Perspective View
2. Lay out the Strut Pattern.
Top View
3. Connect the Struts to
the Foundation Ring.
Top View
Perspective View
4. Attach the Color Coded Hubs.
Attach the Red Hubs
to the Red Triangles.
Attach the Blue Hubs
to the Blue Triangles.
5. Connect the Top of the First Tier
with Red Struts.
Top View
Perspective View
6. Set the Red Struts and
Blue Hubs for the Second Tier.
Top View
Perspective View
7. Set the Blue Struts for the Second Tier.
Top View
Perspective View
8. Connect the Top of the Second Tier
with Blue Struts.
Top View
Perspective View
9. Complete the Dome with Red Struts.
Top View
Perspective View
Blue "A" Chord Factor: .61803
Red "B" Chord Factor: .54653
--------------------------------------------
Altitude Xa | Decimal | 0 |
---|---|---|
Feet and Inches | 0 0" |
A-A-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" |
Surface Area for Each A-A-A Triangle | 0 Square |
---|
Altitude Xa | Decimal | 0 |
---|---|---|
Feet and Inches | 0 0" |
Altitude Xb | Decimal | 0 |
---|---|---|
Feet and Inches | 0 0" |
B-A-B 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 B-A-B Triangle | 0 Square |
---|
by johnhurt.com
Powered by Notepad++
Responsive Mobile Design
Labor omnia vincit
Australia's a big country
An' Freedom's humping bluey,
An' Freedom's on the wallaby
Oh! don't you hear 'er cooey?
She's just begun to boomerang,
She'll knock the tyrants silly,
She's goin' to light another fire
And boil another billy.
Our fathers toiled for bitter bread
While loafers thrived beside 'em,
But food to eat and clothes to wear,
Their native land denied 'em.
An' so they left their native land
In spite of their devotion,
An' so they came, or if they stole,
Were sent across the ocean.
Then Freedom couldn't stand the glare
O' Royalty's regalia,
She left the loafers where they were,
An' came out to Australia.
But now across the mighty main
The chains have come ter bind her –
She little thought to see again
The wrongs she left behind her.
Our parents toil'd to make a home –
Hard grubbin 'twas an' clearin' –
They wasn't crowded much with lords
When they was pioneering.
But now that we have made the land
A garden full of promise,
Old Greed must crook 'is dirty hand
And come ter take it from us.
So we must fly a rebel flag,
As others did before us,
And we must sing a rebel song
And join in rebel chorus.
We'll make the tyrants feel the sting
O' those that they would throttle;
They needn't say the fault is ours
If blood should stain the wattle!
"
Henry Lawson