|Project by Lee A. Jesberger||posted 07-11-2007 03:36 AM||3706 views||4 times favorited||25 comments|
In the home office project, there are large curved door. At the time of writing about the project, the pictures showing the form work were mixed in with over a thousand other pictures.
Well, we found them, and I thought some people would like to see how it was done. To be honest I forgot how it was done, and had to ask my employee / partner. I guess old age is setting in early.
He is the same guy that introduced me to vacuum systems originally.
The two layers of 3/8” bendy ply is inside the bag, already glued. The plywood is clamped at the bottom of the form, bent over the form, and then clamped at the top. The the bag is turned on and the vacuum is pulled. The green felt is inside the bag to permit the air to be pulled out of the entire length of the glued up parts. Without the felt, the bag would suck tight to the plywood, and leave air in the far end of the bag.
If this form were to be placed in the bag, it would be crushed in short order.
Add this technique to your repertoire and your woodworking can move up to another level with possibilities.