Join Date: Mar 2010
Location: Central Washington State
common sense could apply
I am assuming we are talking about "Titebond" or similar type glues.
I regulate the clamping pressure according to the size of what I am clamping. On small things such as rings for a segmented turning, I'll spread the glue evenly on the workpieces and then simply hold the pieces together for about 10-15 seconds then carefully release it and move on to the next one. On a larger project such as glueing planks together for a table top, I use Jorgenson "I" bar clamp (Heavy Duty) and apply a fair amount of pressure. With a table top it is also important to alternate the clamps top an bottom and do not over-tighten to the point where you are warping or bowing the table top. Its also a good idea to use culls on the edges to prevent crushing the edges of your workpieces.
For joinery, I apply enough clamp pressure to draw the joint up snug and then stop so as not to cause crushing or twisting.
When doing curve laminated pieces, I use as much pressure as I am able to in an effort to squeese all the gaps out.
For those of you who do not need to clamp anything because your joinery is so perfect, congratulations, you have reached a level of craftsmanship that I have yet to acheive.