Jigger wheel auminum cuphead (for cups)

Showing dimensions to fit a Shimpo RK2 wheel, its shaft is 0.983 in diameter. The molds fit down inside as shown, only contacting the cuphead at the shoulder. This is machined from aluminum. We do not sell this of course, but you could take this drawing to a machine shop and have them make you one (the numbers are readable when this is zoomed to full size).

Related Pictures

Cuphead for Shimpo jigger wheel

This picture has its own page with more detail, click here to see it.

This is machined out of aluminum. We also have drawings of a 3D-printable shell-mold for making molds that drop into this. And methodology for printing the outside contour of pieces to be jiggered.

Jigger arm assembly for a Shimpo RK2 pottery wheel

This picture has its own page with more detail, click here to see it.

We have mechanical drawings for this (and the cup heads). This is very sturdy and useful. The arm is relatively short compared to industrial jigger wheels and is thus useful for only small shapes. There is an advantage: The template contacts vertical walls at a more perpendicular angle. But the disadvantage is that the trailing edge of the template hits the outside edge of the lip on taller shapes. The pointed bolts hold the arm securely and their tightness enables varying the friction of movement. They have enough length to also position the arm horizontally. We 3D print templates and block masters for making working molds that drop into the cuphead.

Jigger wheel aluminum cuphead (for plates)

This picture has its own page with more detail, click here to see it.

The head is lathed from aluminum. It fits on a potter's wheel (adjust the inside diameter to fit the shaft). The plaster mold drops into it this cuphead and stays in place by friction. The only point of contact between the mold and aluminum should be at the top inside corner of the cuphead.

3D printed three-piece jigger case mold complete

Available on the Downloads page

This picture has its own page with more detail, click here to see it.

It is now practical to make true-round, perfect-fitting, all-in-one case molds for jiggering using a consumer 3D printer and PLA filament. This was a one-off test mold to demonstrate the method but these print so fast this is suitable to make dozens of molds. The process: Create the drawing in 3D CAD (e.g. Fusion 360), print the three sections, glue them, turn the assembly upside down, fill with plaster, let it set and peel out the inside two pieces using a heat gun.

Things to note:
-The outside profile can be adjusted to fit your jigger machine or cuphead.
-This is light and prints quickly.
-The shoulder (C) is printed solid and the PLA printed surface from A to D is left in place permanently, this enables precise and durable fit into the cuphead. I print the outside shell upside down, so no printed support is needed.
-The down-pointing flange (A) embeds it into the plaster providing a durable edge against which to fit the pour spout (F). The glue joint connecting A & B breaks when B+E are removed.
-B and E are printed upside down, no support is needed for B (since the top is open).
-The base E has a flange that enables gluing it precisely into B. Debossed logos are practical on the base. It prints upside down for maximum quality.

You can get this on the downloads page.

Videos

Links

Projects	Project to Document a Shimpo Jiggering Attachment Make your own jiggering attachment for your potter's wheel. Here are the plans and lots of help to get you going with molds and techniques.
Glossary	Jiggering Jiggering is a process of forming pottery that employs a spinning plaster mold and a tapered template to press soft clay or porcelain against it.

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