We are three students from California College of the Arts in San Francisco in the Architecture program.  This studio is called Creative Architecture Machines and is taught by Jason Johnson and Michael Shiloh.  Webster is a geometric pattern weaving machine that takes inspiration from Islamic tiling, geodesic dome construction, weaving machines, and conventional 3D printers.  This 3-axis robot was an exploration in the geometric control of stepper motors, the texture variability of hot glue extrusion, and weaving facets through script-generated density difference and form repetition.  Harnessing the structural capacity of the glue texture, the movement of the z-axis motor, and the variability of the weave, Webster was used to rapid-prototyping domes through an additive web-like process.  

Please see the attached video for more visual information on the process and final product.  If you are interested in more information about the process or have any questions regarding the setup please feel free to contact us.  We would love to hear feedback or suggestions as well.  


Cassondra Stevens, Colette Rixey, and Megan Freeman

Step 1: What You'll Need


For the Body...

(5) 3D Printer belts. You can order one length of belt and cut it down to 5 separate pieces.  
(10) Pullies. Make sure they fit to the printer belts.
(6) Aluminum Rods (5/32" D).  The height of the rod depends on the height of your desired Z axis.
(2) .5"D Wooden Dowels. Same length as base.
(2) Steel Rods.  The Diameter needs to match the motor head diameter.  Length of the rod depends on the width of the base.  Ours       were 18".
(2) 3" Long Aluminum Tubing.  This is need to snuggly fit over the steel rod and the motor head (it attaches the two together).
(2) Acrylic Spacers.  Diameter needs to fit over the standard chosen screw size.  We used 6/32" D.
(10) Linear Bearings.  These need to perfectly slide over the 5/32" D Aluminum Rods. 
(3) Sheets of 1/4" Plywood (24" x 48") 
6/32" Screws.  We bought 3 boxes of 100 screws at various lengths .75" 1", 1.25"
(100) Lock Nuts
(16) Wing Nuts.  To allow you to adjust the belt.
(100) Washers, Nylon and Metal
Set of Small Rubber Clamps to be your extra hands.

For the Extruder…

(1) Low Temp Mini Glue Gun.  You should buy multiple backups.  We went through 10.
Tooons of hot glue
(4) Gears.  Various sizes.
1' x 1' Sheet of 1/8" Acrylic or Wood 
Screws 6/32" D.  You can use the screws that are listed for the body.
Multiple Packs of Mini Glue Sticks .27 Diameter 


(3) Stepper Motors, one is single headed and two are dual headed
(1) Continuous Loop Servo Motor
(1) Quad Shield Motor Driver 
(1) Small Computer Fan
(3) Heat Sinks
Female Headers.  To solder to motor driver
(2) 12 Volt Power Adapter
Stranded Wire
Soldering Iron and Solder
(2) Arduino Uno's
(1) Blank Shield 
Tons of zip ties

<p>This looks great but I expected something to do with pattern weaving. </p><p>Weaving is an over-and-under procedure</p>
This is very interesting. I feel that this technology has unlimited potential. The limitations at present seem to be the materials that can be extruded through the jets and the size of the object being made . I feel that the upshot of this 3D printer technology will be custom manufactured clothing , medical advances such as literally making new body parts( ears, noses and some soft tissue parts have already been made using this technique.)The work that your group is doing with 3/d weaving is important to the eventual perfection of the process. Keep up your great efforts , It could make you very wealthy someday and make life better for us all . Thanks for this instructable.
I'm not sure what to say, since I'm not sure what it is, but it's really interesting and attractive in a good way.
Very awesome!
We have posted some more images and a video per your requests. I hope this shows more of what of what our robot has produced. Webster could potentially be scaled up to large scale dome construction in the field of architecture.
Are you sure you don't want to switch to mechanical or electrical engineering instead of architecture? :) Nice project.
+1 on posting a video - sounds intriguing.
was very good
Have you posted a video of it working?
Your instructions for the buildare wonderfully detailed and well illustrated. It would have been a nice touch to show what the finished machine is capable of creating.

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