![]() ![]() They are for a customer who takes the frames (+pictures) all over the country to The moulding has a groove along to back which is convenientįor the strap to fit in so it can't slip. This method helps a lot if you are working on your own. Then leave the strap on until the glue dries (overnight?) The frames are mostly about 4' x 3' and ![]() Hammer to bend them a little so when they are screwed in they pull the faces of the joint together rather than I give the plates a bang with a ball-headed The pins probably aren't strictly necessary, but I do it anyway.Īfter that I screw 3" steel 'L' plates in the back near to the inside. Put a couple of v-nails toward the back edge. In this state the whole frame is rigid and IĬan transfer it to the underpinner without disturbing the joints. It up, checking the corner alignment as I tighten the strap. Then I throw a webbing strap around the whole thing and cinch In that they permit lateral movement to align to corners, but hold the joints level - provided Then I glue all four corners, insert biscuits and locate all the joints. I cut a biscuit slot in the corners - toward the inner edge to leave a gap to underpin. There is a method I use for large frames using a 3" plain wood scoop. Strong bond and continue to protect the integrity of the join and prevent the frame coming apart if the glue should fail. They serve only to hold the joint tight so the GLUE can form a It should be noted the V-Nails are not the main strength of the joint. Save yourself pain and heartache and get a decent rig. They work up to a point but aren't really up to the job. Gadgets like the Logan are aimed at hobby framers and That's my take on it anyway.īuy a professional quality machine (used or new) and it will serve you well. The less to go wrong and lower maintenance. Plus the fact that the simpler the machine I've been using one for 35 years.īells'n'Whistles machines with lateral clamps/pre-programmed wedge positions/etc are great for more intensive operationsīut knocking together smaller quantities can just as well be accomplished with a manual. Underpinners are great, but you don't really need a pneumatic machine if you do a relatively small volume. A lot depends on how many frames you make and the nature of the moulding. ![]()
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