Sunday 14 October 2012

October Week Two

After the experiments in extruding using softer clay and hand extruders, research/discussion has presented a new challenge.
6 inch dies from lexan and plexiglass.
Paper rolls and a mitre box for cutting extruded forms.
Thin piece of foam mounted in the mitre box to allow cutting right through the form.


 I slowly cut each 6" die on the band saw.
Rounded them up on the belt sander.








Nine should be enough:)






The first attempt using the drill press to cut the central hole and multiple smaller holes. Then using the dremel with a rasp bit as well as a hand rasp, was able to remove unwanted part.



Each die takes me several hours to complete; a challenge to calculate the angle of clay entry into the die and the balance of flow of clay under pressure. This surface is smooth and the serpentine shape will give the option of a slightly wider piece on extrusion.



Here is a textured surface which I plan to manipulate as the extrusion decends. Will test if some horizontal movement adds greater variety.




The dremel with the rasp bit speeds up the process but a two handed grip is needed as it wants to buck, left to its own devices.
 Removed the protective wrap from the dies and used a propane torch to smooth the sanded surfaces. Now for the tests!:)
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