To use V nails for joining edges, typically in frame making, you prepare the edges with glue, join them together, position the V-nail, and drive it firmly into the joint using a suitable tool or hammer.
V nails, also known as wedge fasteners or framing staples, are specialized fasteners used primarily for joining mitered corners, most commonly in picture frames. They are V-shaped in cross-section and are driven across the joint line to pull the two pieces of wood tightly together, creating a strong corner. While professional framers often use pneumatic or manual underpinner machines, the fundamental process, even with simpler tools, follows a consistent sequence.
Step-by-Step Guide to Using V Nails
Based on standard practice and the provided reference, here is a breakdown of how to use V nails:
1. Prepare the Frame Edges
Before joining, preparation is key for a durable joint.
- Cut: Ensure your frame pieces are cut accurately, usually at a 45-degree angle for a 90-degree corner (a miter joint).
- Apply Glue: Apply a thin, even layer of wood glue on the cut end face of each frame piece that will form the joint. The glue provides significant strength to the finished corner.
2. Join the Glued Ends
Bring the two glued ends together carefully.
- Align: Line up the edges precisely to form the desired corner angle. It's crucial that the surfaces are flush and the corner is square.
- Hold: Hold the pieces together firmly, ensuring the joint is tight and correctly aligned. You might use a corner clamp or similar jig to help keep the pieces in place during this step and while inserting the V-nail.
3. Position the V-Nail
The placement of the V-nail is vital for effective joining.
- Orientation: Position the V-nail against the lined-up frame edge, centered over the joint line. The pointed "V" should be oriented to enter the wood perpendicularly to the joint line.
- Placement Depth: For wider frames, you might use multiple V-nails stacked vertically along the joint. Ensure they are positioned correctly to reinforce the entire depth of the wood.
4. Drive the V-Nail
This is where the V-nail is inserted into the wood.
- Tool Selection: Using your chosen tool (which could be a manual V-nail insertion tool, a hammer, or even a specialized V-nail underpinner if available), place it squarely against the V-nail.
- Insert: Firmly drive the V-nail into the joined edge. The V-nail should sink below the surface of the wood and pull the two frame pieces together as it enters. Drive it until it is fully embedded and the joint is tight.
- Repeat: Depending on the frame size and strength required, you may need to flip the frame over and insert one or more V-nails from the opposite side as well.
Summary Table
| Step | Action | Purpose |
|---|---|---|
| 1. Prepare Edges | Apply wood glue evenly to cut ends. | Adds strength and stability to the joint. |
| 2. Join Ends | Bring glued edges together and align precisely. | Forms the corner and ensures a tight fit. |
| 3. Position V-Nail | Place V-nail centered over the joint line. | Prepares for insertion at the correct spot. |
| 4. Drive V-Nail | Use a tool/hammer to drive the V-nail into the joint. | Pulls the joint together and reinforces it. |
Proper use of V nails, combined with good quality wood glue, results in strong and durable frame corners suitable for hanging and display.
