Bellows update

I posted a bit on building bellows a while back, and had planned to get photos up of the build process.  Well, that tanked.  Something went awry and I seem to have lost all the photos, so I am in the process of trying to make a few drawings up to better explain the process, then when we build another set I will photograph the process and reshoot (hopefully we will also do video at the same time for our upcoming DVDs).  So, keep an eye open here for new bellows images - hopefully soon!

(see the orginal post here:  Bellows)
Until then, these pics will probably help:

In this pic, we see all three boards hanging in space, one over the other. This is how the bellows would be arranged if the nozzle (with hinges) and lung were mounted, and both chambers were fully open (ie, full of air). The valve boards are shown in violet (without their leather hinges in place), the top and bottom are shown as edge joined boards and the center as chip board. This is only done to make the image easier to understand, please see the main post on what to make these parts from.

This image shows the rough shape and proportions of the boards from the top. Yours does not have to be exact, roughly this shape and these ratios will work just fine.

This image shows the midboard, with the notch at the front for the nozzle to be mounted in, the hanging pins and the holes for the valves. The bottom board has the same valve holes, but does not have the hanging pins or notch at the front.

The top board is the same size and has no holes.

The lung of the bellows will wrap from the front (narrow) edge all the way around the curved rear of the bellows to the opposite front edge.

I will see about getting the nozzle image up asap.