So, with the assistance of my dad and his workshop, I am going to be taking upon myself the task of making an aluminium pintail longboard. I have seen lots of designs of aluminium longboards but most are extremely thick and I fear that they may be too heavy and have no flex to them. My question is, will I be able to get away with having a sheet of 1/4" aluminium to make my deck but still have it be light enough for easy carrying?
I know this isn't really the place to be asking but I was asking from more of a physics stand point to know weather it would be able to take my weight (around 75kg).
The deck would ideally be from 44" to 50" and have the 2 trucks as far down the nose and tail as possible. much like is shown here but with a sharper point on the tail:
The designs I have seen on the internet have mostly been CNC machined to get rid of excess weight but I was hoping that I would be able to do a minimal amount of this because of the complexity of setting up the code on my dads Hurco CNC.
Some designs I've seen that I like the look of and will base my own designs off:
I know this isn't really the place to be asking but I was asking from more of a physics stand point to know weather it would be able to take my weight (around 75kg).
The deck would ideally be from 44" to 50" and have the 2 trucks as far down the nose and tail as possible. much like is shown here but with a sharper point on the tail:

The designs I have seen on the internet have mostly been CNC machined to get rid of excess weight but I was hoping that I would be able to do a minimal amount of this because of the complexity of setting up the code on my dads Hurco CNC.
Some designs I've seen that I like the look of and will base my own designs off:
