just finished reading all 6 pages. it is a really good thread!!
i really like the look of this design, so simple, yet appears to work really well.
I have a reasonable workshop at my disposal, good drill presses, lathes, gas/mig welding, but sadly no mill. but with this design i dont need a mill
cather: (or anyone really): how do you get your o-rings set in like that? do you have an o-ring in both the top and bottom layers, or was that just for the photo? where do you find o-rings that shape, or are they just flat pieces of rubber which are cut out?
i guess i could try and make a cut out for an o-ring with a dremel, could be hard but it should work