![]() The cartridge drives two V-nails simultaneously into the wood as the lever is pressed down. By pressing the lever, the clamped frame is lowered down to meet the V-Nails which are held in a magnetic cartridge. In the Logan Pro Joiner, Model F300-2 the frame is clamped face up and adjusted for nail placement and driving force. Logan’s Pro Joiner is a good quality underpinner at an economical price. For these frames the nail must be driven up from under, a process called “under-pinning”. Yet even being able to secure the frame does not solve another problem inherent in laying the frame on its face for nailing: potential damage to the surfaces of highly ornamented frames or those constructed of fragile adornments in compo. Customers who purchase a joiner that includes only a corner clamp, like the Studio Joiner, are wise to make an additional purchase of the Framing4Yourself 15 ft Band Clamp or the Bessey 23 ft band clamp to solve the problem at a nominal additional price. Logan’s suggested method of aligning the sections and running a finger over the miter surfaces prior to placing them in the corner clamp is serviceable but not as sure-fire as pre-clamping with a good quality high-tension band clamp. Only when all four corners of a frame are fitted together can one make a thorough examination of the seams to be sure no sanding is required. Clamping QuestionsĪ further observation about the band clamp versus corner clamp debate - a corner clamp does not allow the user to see all four corners of the frame fitted securely against each other prior to nailing. While this is rarely an issue for those who are framing photography or art on paper (which seldom involves using frames wider than 2½”), it can be a concern for those framing oil paintings or larger works demanding more ornate mouldings. The distance between the driving posts does not allow frames wider than 2½” to be joined. ![]() But the Logan Studio Joiner has one notable drawback. It comes with an assortment of about 50 hard and soft wood V-Nails in 3/8″ size. ![]() The beam that holds the driving head can be adjusted up and down on parallel posts to allow for superior driving force on different thicknesses of molding. ![]() What’s more, it provides additional driving force by way of a lever handle and is therefore reliable for driving hard woods as well as medium and soft woods. It utilizes a magnetic nose that holds the V-nail and retracts into a spring loaded sleeve as the collar presses down on the nail. ![]() This combination press and driving head comes with a corner clamp for holding the miters together while the nail is driven. If you want a V-Nailing system that includes a clamp, the most economical option is the Logan Studio Joiner, Model F300-1. V-Nails are not specific as to brand, meaning that any V-Nails can fit into any joiner you may have. V-Nailing has an advantage over traditional side-nailing in that the nail is driven behind the frame, eliminating the need to cosmetically cover up the nail head. The nail holds the corner together, joining the frame. Basically, V-Nailing is the driving of a V-shaped nail into the back of a frame so that the two wings imbed themselves on either side of the seam that is formed when the two miters are pressed together to form the frame’s corner. When comparing picture frame joiners, it’s best to start by understanding V-Nailing. ![]()
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