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Quad Vert All kinds of aggressive skating on quad roller skates including quad vertical roller skating, quad bowl skating, quad skatepark tricks, and street skating tricks in quad skates.

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Old May 28th, 2009, 08:25 AM   #101
Armadillo
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Default UHMW is polyehtylene plastic & too weak for a plate

Quote:
Originally Posted by biffsk8er View Post
It would be perfect to cut skis with a band saw. Also, UHMW could be cut with a band saw. However, I do not think UHMW would make a good plate. Better to connect it to your plates as an accessory. I would think that it would be too flexible by itself, and would warp over time, unless attached to a more rigid surface.

~ If anyone has more knowledge about types of UHMW that could be used as a plate, please correct me. ~
The very low TENSILE STRENGTH of UHMW sheet makes it a totally poor choice for a skate plate, as it bends much to easily. The trucks would bend it, so you would have poor control in turning the axles to point then where you needed them to go. It would likely crack where screws penetrated without using BIG washers. UHMW is good where TOUGHNESS and LOW SURVACE FRiCTION are needed. It is great for handling high impact shock loading without cracking.
Ski designs sandwich HIGH TENSILE STRENGTH materials, like fiberglass and carbon fiber, around a core of weaker lightweight material, with a thin layre of UHMW polyethylene at the bottom. This gives them good and tunable stiffness.

-Armadillo
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Old May 28th, 2009, 06:51 PM   #102
biffsk8er
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Default

Quote:
Originally Posted by Armadillo View Post
The very low TENSILE STRENGTH of UHMW sheet makes it a totally poor choice for a skate plate, as it bends much too easily. The trucks would bend it, so you would have poor control in turning the axles to point then where you needed them to go. It would likely crack where screws penetrated without using BIG washers. UHMW is good where TOUGHNESS and LOW SURFACE FRICTION are needed. It is great for handling high impact shock loading without cracking.
Ski designs sandwich HIGH TENSILE STRENGTH materials, like fiberglass and carbon fiber, around a core of weaker lightweight material, with a thin layre of UHMW polyethylene at the bottom. This gives them good and tunable stiffness.

-Armadillo
You are replying to an August 2008 post!!!!!

Also, you are saying pretty much what I said. Don't use UHMW as a skate plate....add it to an existing rigid structure.
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