Can anyone tell me why when I look at everyone elses projects they dont have the paper stuck to the side of their ribs or spine? I guess I should peel that off once we cut the slots into it 'eh. My other thought is the 1/4" luan board doesnt seem strong enough for the ribs, has anyone tried using plywood or another such wood, or should I just trust that they will be strong enough?
We got them all roughed in and ready to rock when I thought I would cut holes in them to lighten the load , photo a hole drilled in the rib.
I went with a 1 1/4" spade bit on the drill press, it was a messy job and a pain, as the little circle of luan board stuck to the bit every time. I went with three inch spacings center to center, and three on each side of the spine....to reduce weight remember. more to follow
After drilling 66 holes and spending an hour doing so, I was curious as to how much weight my efforts saved me. Two identical pieces, with identical holes drilled had a difference of 20g to 18g. After the weigh in and some quick math i saved 1.18kg...thats almost 4 pounds for our American viewers.
Then I took a second and did some slow math correctly, it turns out it is 2 x 66 and not 18 x 66 so the new total is 132g, thats about a third of a pound for you americans out there...were my efforts worth it? Im still unsure.
Post by TimelessSurf on Jul 10, 2012 18:27:57 GMT -5
Ha, that's funny stuff right there! I did the same thing, i thought I was saving a bunch of weight by drilling the holes but it doesn't make a huge difference. The REAL weight comes from the wood selection from the decking and rails. BUT adding the holes will let the chambers breath and even out the pressure inside the board, so it isn't a waste.
While on the subject of drilling holes and saving weight, I have seen people with holes drilled in the spine, I imagine a few plywood holes would add up quick, does this cause the board to have a shorter life and cause the possibility of cracks in the spine or is this ok to do?