These are the glued pieces set in their respective jigs after the cramps have been put on. When we were put the pieces in and began tightening the cramps we found that the pieces wanted to slide up or that they werent perfectly even on either side despite being dressed the same. We took another piece of wood and as one person would began to tighten down the cramp the other person would firmly press down on the laminated pieces near the cramped area and force the pieces back down how we wanted. If the pieces are really being stubborn you can hammer them down instead of trying to just force them down. It is also vital that you don't get any of the plastic stuck up in between the pieces of wood because that wont allow for a solid seal. Then last thing that also happened to us was the laminated pieces getting crease marks under intense pressure despite being steamed. We decided to just make enough pieces that we could afford to have one extra piece crack or ding. We did not apply any glue to this piece. In the second photo you can also see how we used each frame to brace the other frames by setting a straight piece as opposed to angle bracing each individual frame. make sure that these braces do no get in the way of future work.
How is it?
ReplyDeleteExcellent blog Chris.
The first photo is of the Stem, not a problem but the heading says frame. Do you have a seperate photo of one of the laminating blocks? Inserting this in this blog with a few words on why they are made how they are would be a good thing.
Keep up the good work.
the blocks are made such that the timber needing to be bent can be pushed right up to the necessary point and the cramped into place. there is a notch cut from the top of the block so that the g-cramp or sliding cramp can fit the wood at the center of pressure. if pressure is off centered then air pockets or just simply sloppy work will be produced. a good look at the blocks is in the last post. we screwed the blocks into place with 2 or 3 screws to insure that the tension from the boards would not move the blocks from the correct place.
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