Bumper Material Poll

[Alex Cormier]

Originally Posted by RoboChair

http://www.rockywoods.com/Fabrics-Ki...pellent-Finish

Dark Navy and Red

How does this stuff differ from rip stop nylon?

[Mike Marandola]

Originally Posted by Alex Cormier

How does this stuff differ from rip stop nylon?

Ballistic nylon is thicker, not as slick, and more similar to 1000D Cordura nylon. We ran CoF tests on about 16 different fabrics, including the ballistic nylon from Rockywoods, and found that it was slicker than Cordura nylon, but not as slick as ripstop.

[Alex Cormier]

Originally Posted by Mike Marandola

Ballistic nylon is thicker, not as slick, and more similar to 1000D Cordura nylon. We ran CoF tests on about 16 different fabrics, including the ballistic nylon from Rockywoods, and found that it was slicker than Cordura nylon, but not as much as ripstop.

I wrapped the bumpers in ripstop this year. We were replacing the front bumpers with regular cordura due to the nylon taking a beating at our pre scrimmage yesterday.

[Mike Marandola]

Originally Posted by Alex Cormier

I wrapped the bumpers in ripstop this year. We were replacing the front bumpers with regular cordura due to the nylon taking a beating at our pre scrimmage yesterday.

What ripstop did you try?

[Alex Cormier]

Originally Posted by Mike Marandola

What ripstop did you try?

http://www.joann.com/rip-stop-nylon/...+nylon&start=1

[Mike Marandola]

Originally Posted by Alex Cormier

http://www.joann.com/rip-stop-nylon/...+nylon&start=1

We tested that one and it's a lot thinner than some other ripstops we have. I'll try to snap an up close picture of the Joann ripstop next to ballistic nylon at our meeting tomorrow for comparison.

[Alex Cormier]

Originally Posted by Mike Marandola

We tested that one and it's a lot thinner than some other ripstops we have. I'll try to snap an up close picture of the Joann ripstop next to ballistic nylon at our meeting tomorrow for comparison.

Thanks, We had no issues on the sides or back bumpers. The front were hit a lot against wood yesterday.

[Mike Marandola]

http://imgur.com/a/uoZpL

From left to right: Joann ripstop - ballistic nylon - Cordura nylon

[hectorcastillo]

Chainmail

[Bob Steele]

Originally Posted by Richard Wallace

We are going with the slick fabric from RoboPromo.

ditto

[GeeTwo]

Originally Posted by hectorcastillo

Chainmail

Even if you made a triangular robot, getting each corner's bumpers down to under 7# must have been a challenge. Did you source it from Stark Industries, make it yourself, or find another source?

Edit: Hmmm.. would chainmail on the robot be considered armor or barding?

[Alex Cormier]

Originally Posted by Mike Marandola

http://imgur.com/a/uoZpL

From left to right: Joann ripstop - ballistic nylon - Cordura nylon

Which you like the most and what's the cost difference?

[Mike Marandola]

Originally Posted by Alex Cormier

Which you like the most and what's the cost difference?

The ballistic nylon is about $15/yard and Cordura nylon is $12.50/yard. We are using neither but I would choose the ballistic over Cordura and the Joann ripstop.

[AllenGregoryIV]

We use cordura as well.

What have teams found to be the cheapest bumper material? We want to buy a lot of it to give out to teams with illegal bumpers at events.

[Mike Marandola]

Originally Posted by AllenGregoryIV

We use cordura as well.

What have teams found to be the cheapest bumper material? We want to buy a lot of it to give out to teams with illegal bumpers at events.

The cheapest that's suitable for bumpers that I have seen is duck cloth or a similar canvas. You can find it online and locally for around $4 a yard.