mccord blackwell - DSID 137

advanced prototypingprocess book

DSID 137 withJohn McClusky

mccord blackwell - DSID 137

prototypinglearning multiple ways to create models with

reproducible results. the class was concentrated more on the process of making models and the

techniques that make them up. more so than being

focused on the design that went into them.

mccord blackwell - DSID 137

table of contentsceramic casting

sand castingwelding

wire bending

mccord blackwell - DSID 137

ceramic casting

mccord blackwell - DSID 137

mold making & casting

taking the proportions of a “standard” 32oz. beer can and casting them in a porcelain material with an open top. Creating a cup out of a familiar shape.

can-cup

project 1

mccord blackwell - DSID 137

initially planning on using a three part mold. accounting for the lack of draft on the underside of the can as well as for the undercut created at the top of the cup.

removing the flash the cup will be ready for firing and glazing after sponging smooth any imperfections

2 1/2”

4 & 13/16”

mold making & casting

making a plaster mold of the cup requires making a dam to then fill with the wet plaster and then filling the other side to create the second half of the mold.

can-cup

mccord blackwell - DSID 137

mold making & casting

pouring slip took time and a couple of rounds of practice to get the timing right. final touch ups were needed before totally drying out.

can-cup

mccord blackwell - DSID 137

mold making & casting

the final result was a leather ware cup that can then be bisque fired to provide more structure and be ready for glaze and a final firing.

can-cup

mccord blackwell - DSID 137

sand casting

mccord blackwell - DSID 137

sand casting

sand casting is a simple yet versatile process. I decided to make a logo out of Styrofoam as my mold.

Yolo

mccord blackwell - DSID 137

sand casting

the final product was then machined and polished.

Yolo

mccord blackwell - DSID 137

welding

mccord blackwell - DSID 137

welding

using a common technique for joining metal we used both tig and mig welding to create a series of table legs.

table legs

mccord blackwell - DSID 137

welding

not being an ordinary class meeting meant for unordinary behavior.

table legs

mccord blackwell - DSID 137

welding

practice welds were done to test different welding conditions such as butt joints, lap joints as well as offset joints.

table legs

mccord blackwell - DSID 137

wire bending

mccord blackwell - DSID 137

multiples

using multiple patterns and bent rod I produced a magazine rack that looks similar to a Jacobs ladder as well as a ladder coming apart at the rungs.

jacobs literature

6 ft.

mccord blackwell - DSID 137

multiples

after bending the rod to the appropriate lengths I then welded the two main sections together and attached the arms to with equal spacing from one another.

Jacobs

mccord blackwell - DSID 137

multiples clamping the parts down to eliminate movement is a key step in welding. with temperatures varying so much the metal tends to move around a lot. Jacobs

mccord blackwell - DSID 137

thank you