Bonny Doon Large Synclastic Forming Stake for Swanstrom Anvil
Create smooth, dimensional curves with precision using the Bonny Doon Large Synclastic Forming Stake for Swanstrom Anvil. Designed for jewelers, metalsmiths, silversmiths, and metal artists, this specialized forming stake features two large synclastic forming profiles for shaping sheet metal into rounded, domed, curved, and three-dimensional forms.
Precision CNC-milled for superior rigidity and reduced flex, the stake provides a stable forming surface that helps you maintain greater control while hammering and shaping metal. It bolts securely into the Swanstrom Anvil, creating a solid, interchangeable forming station for jewelry making and dimensional metalwork.
The two large synclastic profiles provide versatile working surfaces for developing anything from gentle curves to more pronounced contours. Pair the stake with the Bonny Doon Urethane Hammer for excellent forming results, or use an appropriate nylon or rawhide hammer.
Features & Benefits
- Two large synclastic forming profiles – Provides versatile surfaces for developing rounded, curved, and dimensional metal forms
- Designed for synclastic forming – Purpose-built for creating curves that develop in the same general direction along two axes
- Large forming surfaces – Ideal when your project requires broader curves and larger dimensional forms
- Precision CNC-milled – Provides excellent rigidity and significantly less flex than traditional forming stakes
- Stable forming platform – Reduced flex helps transfer forming force efficiently into the workpiece
- Bolts securely into the Swanstrom Anvil – Creates a solid, dependable workstation for hammer forming
- Interchangeable stake system – Expand your Swanstrom Anvil with additional Bonny Doon forming profiles as your needs grow
- Designed for Bonny Doon Urethane Hammer – An excellent combination for controlled metal forming
- Compatible with nylon & rawhide hammers – Provides additional non-steel hammer options
- Professional metalsmithing tool – Suitable for jewelry studios, metalsmithing workshops, and serious hobbyists
- Made in the USA
Key Specifications
- Brand: Bonny Doon
- Product: Large Synclastic Forming Stake
- Tool Type: Synclastic Metal Forming Stake
- Forming Profiles: 2 Large Synclastic Forms
- Compatible With: Swanstrom Anvil
- Construction: CNC-Milled
- Mounting: Bolts into Swanstrom Anvil
- Recommended Hammer: Bonny Doon Urethane Hammer
- Other Suitable Hammers: Nylon or Rawhide
- SKU: 11541801
- MPN: ANVIL-STAKE-05
- UPC: 632751119696
- Country of Manufacture: United States
What Is Synclastic Forming?
Synclastic forming is a metalsmithing technique used to create dimensional shapes in which sheet metal curves in the same general direction along two axes.
Think of rounded forms such as a dome or bowl. The metal develops curvature in two directions to create a three-dimensional surface rather than simply bending along a single axis.
This differs from anticlastic forming, where the metal develops opposing curves and often takes on a flowing or saddle-like shape.
A dedicated synclastic forming stake provides the shaped working surface needed to progressively develop these rounded curves through controlled hammering.
Two Large Synclastic Forming Profiles
The Bonny Doon Large Synclastic Stake incorporates two generously sized synclastic forming surfaces in a single Swanstrom-compatible stake.
Having two profiles provides greater flexibility when selecting a working surface for your project.
The large profiles are particularly useful when creating:
- Broad curves
- Rounded forms
- Domed shapes
- Dimensional jewelry
- Sculptural metalwork
- Larger curved components
- Concave and convex forms
- Flowing three-dimensional designs
Whether you're beginning with a gentle curve or developing a more pronounced contour, the two forming surfaces give you options for controlling the shape as your project progresses.
Ideal for Dimensional Jewelry & Metalwork
Synclastic forming allows metalsmiths to transform flat sheet into three-dimensional forms with volume and depth.
Depending on your material, project scale, and forming technique, the Bonny Doon Large Synclastic Stake can be useful when creating:
- Cuffs
- Bracelets
- Pendants
- Domed jewelry components
- Rounded decorative elements
- Sculptural jewelry
- Curved sheet-metal forms
- Small vessel forms
- Decorative metalwork
- Three-dimensional metal designs
The larger working surfaces make this stake particularly useful when a small forming profile would produce a curve that is too tight for the intended design.
Designed for the Swanstrom Anvil
This Bonny Doon forming stake is designed specifically to bolt securely into the Swanstrom Anvil.
Secure mounting is especially important during hammer forming.
If a forming stake flexes, shifts, or moves while you're working, some of the energy from each hammer blow is absorbed by the movement of the tool instead of being directed efficiently into the metal.
The Swanstrom Anvil provides a stable base that allows the CNC-milled stake to function as a rigid forming surface.
This helps you concentrate on:
- Hammer placement
- Metal movement
- Developing curvature
- Controlling symmetry
- Refining the form
- Producing smooth dimensional transitions
CNC-Milled for Rigidity & Control
The Bonny Doon Large Synclastic Stake is precision CNC-milled to provide greater rigidity and less flex than traditional forming stakes.
This construction is one of the most important advantages of the Bonny Doon stake system.
A rigid working surface provides a more predictable response during hammer forming. Instead of losing energy through unwanted movement of the stake, you can focus your effort on shaping the workpiece.
For detailed jewelry and dimensional metalsmithing, this additional stability can provide better control throughout the forming process.
Ideal For
The Bonny Doon Large Synclastic Forming Stake is an excellent choice for:
- Synclastic forming
- Jewelry making
- Metalsmithing
- Silversmithing
- Hammer forming
- Dimensional sheet-metal forming
- Domed metal forms
- Rounded jewelry components
- Cuff and bracelet making
- Sculptural jewelry
- Curved decorative components
- Vessel-like forms
- Decorative metalwork
- Professional jewelry studios
- Metalsmithing workshops
- Advanced hobby metalworking
Recommended Hammers
For best results, pair the Large Synclastic Stake with the Bonny Doon Urethane Hammer.
Appropriate nylon and rawhide hammers can also be used depending on the forming technique and desired result.
Protect Your Forming Stake
Avoid striking the precision forming surfaces directly with a hardened steel hammer.
Hardened steel can dent the stake, potentially creating imperfections that may affect future forming work.
A urethane, nylon, or rawhide hammer provides a more appropriate striking surface while allowing you to progressively form the metal over the stake.
Synclastic vs. Anticlastic Forming
Choosing the correct stake begins with understanding the type of curve you want to create.
Synclastic Forming
With synclastic forming, the metal curves in the same general direction along two axes.
Typical forms include:
- Domes
- Rounded surfaces
- Bowl-like forms
- Convex shapes
- Concave shapes
Anticlastic Forming
With anticlastic forming, the metal develops opposing curves along two axes.
This creates flowing, saddle-like forms commonly used in dimensional and sculptural jewelry.
Which Stake Should You Choose?
Choose the Large Synclastic Stake when your design calls for broader rounded, domed, concave, or convex forms.
Choose an Anticlastic Stake when you want opposing curves.
Choose a Combo Stake when you want both anticlastic and synclastic forming surfaces in a single interchangeable stake.
Large Synclastic Stake vs. Other Bonny Doon Stakes
Bonny Doon's Swanstrom-compatible forming stakes allow you to build a modular forming system around the types and sizes of work you create.
Large Synclastic Stake
Two large synclastic profiles for broader rounded and dimensional forms.
Large Triple Synclastic Stake
Three large synclastic profiles for additional forming options.
Large Anticlastic Stake
Two large anticlastic profiles for opposing curves and saddle-like forms.
Large Triple Anticlastic Stake
Three large anticlastic profiles for a wider selection of anticlastic curves.
Small Anticlastic Stake
Smaller graduated profiles for detailed anticlastic work.
Small & Large Combo Stakes
Combine anticlastic and synclastic forming surfaces in one stake.
Selecting several compatible stakes can greatly expand the range of dimensional forms you can create with one Swanstrom Anvil.
Expand Your Swanstrom Anvil System
The Bonny Doon Large Synclastic Stake is part of a larger family of forming stakes designed to work with the Swanstrom Anvil.
The interchangeable system allows you to select a stake based on the particular forming operation rather than dedicating separate bench space to a completely different tool and holder for every profile.
Additional Bonny Doon stakes can expand your capabilities for:
- Small anticlastic forms
- Large anticlastic forms
- Large synclastic forms
- Narrow anticlastic forms
- Narrow synclastic forms
- Combination anticlastic and synclastic forming
This modular approach makes the Swanstrom Anvil a particularly versatile platform for jewelry and small-scale metal forming.
Why Choose Bonny Doon?
Bonny Doon tools are designed for specialized jewelry making and metalsmithing applications where precision, stability, and control matter.
The Bonny Doon Large Synclastic Forming Stake combines:
- Two large synclastic forming profiles
- Precision CNC-milled construction
- Reduced flex
- Secure Swanstrom Anvil mounting
- Compatibility with urethane, nylon, and rawhide hammers
- USA manufacture
For professional metalsmiths and serious jewelry makers, it provides a specialized forming surface for creating broad, rounded, and dimensional metal forms from a stable interchangeable platform.
Frequently Asked Questions
What is the Bonny Doon Large Synclastic Forming Stake used for?
It is designed for synclastic metal forming, a technique used to create rounded, domed, curved, and other dimensional forms in sheet metal.
How many forming profiles does this stake have?
This stake provides two large synclastic forming profiles.
What is synclastic forming?
Synclastic forming creates a three-dimensional shape in which the metal curves in the same general direction along two axes. Domed and bowl-like shapes are familiar examples of synclastic forms.
What is the difference between synclastic and anticlastic forming?
Synclastic forms curve in the same general direction along two axes. Anticlastic forms develop opposing curves, producing flowing or saddle-like shapes.
What anvil does this stake fit?
This stake is specifically designed for the Swanstrom Anvil.
How does the stake attach?
The Large Synclastic Stake bolts securely into the Swanstrom Anvil, creating a stable working surface for hammer forming.
Is the Swanstrom Anvil included?
No. This product is the Bonny Doon Large Synclastic Forming Stake for use with the Swanstrom Anvil. The anvil is a separate product unless specifically stated otherwise.
Is this the same as the Bonny Doon Large Synclastic Stake 115418?
No. The two products use different mounting systems. 11541801 is designed to bolt into the Swanstrom Anvil, while Bonny Doon's vise-mounted Large Synclastic Stake uses a hexagonal center for clamping in a bench vise.
Is the stake CNC machined?
Yes. It is CNC-milled for greater rigidity and reduced flex compared with traditional forming stakes.
What hammer should I use?
The Bonny Doon Urethane Hammer is recommended. Appropriate nylon or rawhide hammers can also be used.
Can I use a hardened steel hammer?
A hardened steel hammer should not be used directly against the precision forming surface because it can dent the stake.
Is this suitable for jewelry making?
Yes. The Large Synclastic Stake is useful for dimensional jewelry, cuffs, bracelets, pendants, rounded components, sculptural jewelry, and other curved metal forms.
What is the difference between this and the Large Triple Synclastic Stake?
This model provides two large synclastic forming profiles. The Large Triple Synclastic Stake provides three large profiles, giving you an additional forming option.
Where is this Bonny Doon stake made?
The Bonny Doon Large Synclastic Forming Stake is made in the United States.
| SKU: | 11541801 |
| UPC: | 632751119696 |
| Brand: | Bonny Doon |
| MPN: | ANVIL-STAKE-05 |
| Made In: | United States |
