Sovereignty Module: Throw the Form
Complete Advanced Wheel Throwing Techniques: From Cylinder to Complex Forms
Advanced wheel throwing builds on basic centering and pulling to create complex, multi-part forms. This campaign covers large pots, lidded vessels, teapots, sectional throwing, and altered forms.
Chapter 1: Advanced Forms
| Form | Parts | Difficulty | Key Technique |
|---|---|---|---|
| Large pot (5+ lbs clay) | 1 | High | Thick base, slow pulls, support |
| Lidded jar | 2 (jar + lid) | Moderate-high | Gallery for lid, matching |
| Teapot | 4 (body, lid, spout, handle) | Very high | Assembly, proportion |
| Pitcher | 2 (body + pulled handle) | Moderate | Spout forming, handle pulling |
| Sectional (tall vase) | 2-3 sections joined | High | Matching diameters, joining |
| Bottle | 1 | Moderate-high | Collaring (narrowing neck) |
| Casserole | 2 (bowl + lid) | Moderate | Flange for lid, knob |
| Goblet | 2 (cup + stem) | Moderate | Joining, proportion |
Chapter 2: Throwing Large Pots
Large pot technique (5-15 lbs clay): 1) Wedge clay thoroughly (critical for large amounts). 2) Center using body weight, not arm strength. 3) Lock elbows against body or wheel frame. 4) Open wide: leave thick bottom (1/2 inch for large pots). 5) First pull: establish wall thickness (3/4 inch). 6) Second pull: begin raising walls. 7) Support outside with rib while pulling inside. 8) Third pull: continue raising, begin shaping. 9) Rest between pulls if clay becomes soft. 10) Use a heat gun or fan to stiffen walls between pulls. 11) Final pulls: refine shape and thin walls. 12) Large pots require 5-8 pulls. 13) Compress rim after each pull (prevents cracking).
| Clay Weight | Max Height | Max Diameter | Pulls Needed | Skill Level |
|---|---|---|---|---|
| 2-3 lbs | 8-10 inches | 6-8 inches | 3-5 | Intermediate |
| 5-7 lbs | 12-16 inches | 8-12 inches | 5-7 | Advanced |
| 10-15 lbs | 18-24 inches | 12-16 inches | 7-10 | Expert |
| 20+ lbs | 24-36 inches | 16-20 inches | 10+ or sectional | Master |
Chapter 3: Lidded Vessels
Gallery lid (most common): 1) Throw jar body with gallery (interior ledge near rim). 2) Gallery: 1/4-3/8 inch wide ledge inside rim. 3) Measure gallery diameter with calipers. 4) Throw lid: flat disk with flange (rim that fits inside gallery). 5) Lid flange diameter = gallery diameter minus 1/8 inch. 6) Allow for shrinkage (clay shrinks 8-12%). 7) Both pieces must be same clay, same moisture. 8) Trim lid: add knob (pulled or attached). 9) Test fit at leather-hard stage. 10) Fire together (same kiln, same shelf if possible).
| Lid Type | Fit Method | Appearance | Difficulty |
|---|---|---|---|
| Gallery lid | Flange sits in interior ledge | Clean, flush | Moderate |
| Cap lid | Lid sits over rim (overlaps) | Visible overlap | Low-moderate |
| Inset lid | Lid drops into opening | Flush, recessed | Moderate |
| Cork lid | Lid plugs into opening | Tight seal | Moderate |
| Knob lid | Any type with pulled or attached knob | Decorative | Moderate-high |
Chapter 4: Teapot Construction
Teapot components: 1) Body: thrown form, 4-6 inches tall. 2) Lid: gallery or cap style, with knob. 3) Spout: thrown cone or hand-built. 4) Handle: pulled or extruded clay, or cane/bamboo.
| Component | Throwing Method | Size | Attachment |
|---|---|---|---|
| Body | Standard cylinder, then shape | 4-6 inch tall, 4-5 inch diameter | Base piece |
| Lid | Small disk with flange and knob | Fits body opening | Gallery or cap |
| Spout | Throw small cone, cut to shape | 3-4 inches long | Score and slip to body |
| Handle | Pull from lug on body, or attach separately | 4-5 inch arc | Score and slip |
| Strainer | Punch holes in body wall (where spout attaches) | 8-12 holes, 1/8 inch | Part of body |
Assembly (at leather-hard): 1) Cut spout opening in body (angle upward). 2) Punch strainer holes inside spout opening. 3) Score and slip spout attachment area. 4) Attach spout (angle upward, tip higher than lid opening). 5) Score and slip handle attachment points. 6) Pull or attach handle. 7) Test: pour water through spout (should flow cleanly). 8) Spout tip must be higher than water line when full. 9) Lid must fit snugly but lift easily.
Chapter 5: Altered and Composite Forms
| Technique | Method | Effect | Difficulty |
|---|---|---|---|
| Faceting | Cut flat planes with wire or knife | Geometric, angular | Moderate |
| Paddling | Strike leather-hard form with paddle | Flattened sides, organic | Low-moderate |
| Darting | Cut V-shaped darts, close and seal | Altered curves | Moderate |
| Stretching | Push from inside at leather-hard | Bulging, organic | Low-moderate |
| Cutting and reassembly | Cut form apart, reassemble at angle | Dramatic, sculptural | High |
| Adding coils | Add coil-built sections to thrown base | Extended height, texture | Moderate |
Reference Card
- Center with your body, not your arms (large amounts of clay require body weight and locked elbows to center; arm strength alone is insufficient for 5+ pounds of clay). 2. Thick bottom for tall pots (a thick bottom (1/2 inch) provides the structural foundation for tall walls; a thin bottom cannot support the weight of tall, wet clay walls). 3. Compress the rim after every pull (compressing the rim with thumb and finger after each pull closes micro-cracks that form during pulling; uncompressed rims crack during drying). 4. Measure with calipers for lids (the gallery diameter and lid flange diameter must match precisely; calipers provide the accuracy needed for a good fit). 5. The spout tip must be higher than the lid (if the spout tip is lower than the lid opening, water will overflow from the lid before it pours from the spout; always angle the spout upward). 6. Strainer holes prevent leaves from pouring (punching small holes in the body wall where the spout attaches creates a built-in strainer; this is essential for a functional teapot). 7. Sectional throwing conquers height limits (by throwing sections separately and joining them at leather-hard, potters can create vessels taller than they could throw in one piece). 8. The teapot is the potter's ultimate test (a functional teapot requires throwing four separate components, assembling them precisely, and ensuring the finished piece pours well, holds heat, and looks beautiful; it tests every skill the potter has).