New custom 5'6" x 19" x 2 1/8" grovler shortboard finished carbon rail

Excellent!!!

 

I have really liked the boards you posted in the past, this one not so much though. Not trying to be a ****, but the outline looks uneven about 12" down from the tip of the nose. Maybe it's just the angle of the picture i don't know. Anyway, keep up the good work, I really dig the longboards you make.

 

i am no shaper but have wondered what was the purpose of the carbon patches? i have seen them on rails of tails and mid rails like the above board. can you fill me in with some info please

 

nice lookin board!, carbon strips are to make the board stiffer less flex,and maybe a lil strength.

 

Just curious, can you explain why you chose that placement for the carbon patches?

 

So I'm assuming you placed them so far up the board because your intent is to prevent deck denting from your hands? Was that your intent? Because your feet shouldn't be near those patches. I get dents from my hands when duck diving and I have often thought to reinforce that area.

As far snapping, you have actually increased the chances the board will snap. Carbon is stiffer than fiberglass. You have created a stiff flex through the center of the board with weak fulcrums at the end of the patches. The ends of the patches are both where the foil of the board starts to thin out. So if a force is applied to the nose or the tail, the board will try to flex. It wont be able to evenly distribute flex from the nose and tail to the center, so it will flex at the end of the patch. With enough force it will snap at that fulcrum.

Actually, you placed the patches in the exact wrong spot to control flex. Flex reduces as you move towards the center of the board due to increasing thickness. More flex occurs at the nose and tail where the foil increases. To reduce flex you would have been better served by placing the patches on bottom of the board extending from the nose towards the center and from the tail towards the center. This way the "tensile strength" of the carbon could help resist that flex. This type of placement is typically what is used for controlling flex.

Please don't take my post the wrong way. It's meant to be constructive criticism not negative. I am completely a proponent of locally made and handcrafted boards. I think what you guys over at Greenlight are doing is great. There a lot of young builders now who will hopefully one day take the local market away from West Coast boards.

 

foamdust, your critique makes a lot of sense and brings me back to my construction materials and reinforced concrete courses in college. i would agree that placement of the carbon fiber patch on the bottom of the board is the way to go since when the board flexes, the bottom of the board is in tension, while the deck is being compressed.