After spreading glue on both pieces of wood, and pressing them together; when I try to clamp them, the "slippery" glue lets the wood move out of alignment. What is the right way to clamp so they stay in alignment?
Rich,For panels, use either dowels, biscuits or cauls. You can make cauls easily with 8/4 stock ripped straight and then cut to a slight arch in the middle. I have a piece of MDF that I use as a template to cut the profile on my router table with a profile bit. Also, be sure to cover the edge with something like packing tape so the glue doesn t stick.
If you re talking about face-to-face, a lot depends on the situation. You can get the pieces aligned and shoot a couple of 23 ga pins to hold them in place while you clamp. You can also shoot three or four 23 ga pins that are shorter than the thickness of the board into one face and clip them with diagonal cutters. The little protrusions are enough to bite and prevent slippage, but small enough not to prevent the pieces from coming together.
For right angle, it s hard to beat dowels, although the right angle clamping guides you can buy or make help keep the edges flush.
- Rich
I'm sure it's obvious that if the pins go in flush with the board, the above trick is worthless. One good way to make sure the pins stand proud of the surface is to shoot them through a thin board, maybe 1/8" to 1/16", laying on top of the board you want to glue. The thin board will lift off of the pins easily and there will be enough pin protruding to snip like described above.You can also shoot three or four 23 ga pins that are shorter than the thickness of the board into one face and clip them with diagonal cutters.
- Rich
+1 At least for me. It seems that every time I have a technique that works the next project calls for something more innovative because the clamp is in the way or not long enough or the wood is warped more etc. Some folks recommend adding salt to the glue joint to act as an abrasive but I have yet to do that. The scariest is with plywood or veneer as there is little wiggle room before you've sanded past the "Oh f**k" stage and gone through the top layer of veneer.I find different projects always present this challenge. Sometimes I use blocks sometimes I use blue tape or packing tape. It's a whole separate set of skills we develop.
Good luck
- Aj2
+1. Also, when you get down towards 1/4" or less, I use masking tape. It makes it easy to get the boards aligned. You tape over the joint(s) and to apply glue flip it over and open the joint. With Bill's spring clamp advice added, you really don't even need to clamp across the panel.Lots of good advice here. One other is, for edge gluing thin boards, use spring clamps at the ends where the boards meet. Lots of ways to skin a cat.
- builtinbkyn
Not. ;-) Great for alignment, not strength.Another vote here for biscuits. An added benefit is how much stronger they make the joint ;>)
- bigblockyeti