Bumper Wall Attachment

[GaryVoshol]

Originally Posted by aldaeron

I am trying to get an opinion on which of these options has worked better in the past. The light blue square is the box beam from the chassis.

Of the two examples, the second is a more robust connection. The frame member is in the middle of the backer board. The one with the frame at the bottom of the board will have much greater forces on the connectors when it gets hit at the top of the bumper.

AndyMark sells some bumper kits, and you can see how pairs of the brackets used here: http://store.andymark.biz/am-0325.html
To see how the brackets work, look at the pdf link "Bumper Segment Example Layout" on that page.

They also sell c-channel brackets: http://store.andymark.biz/am-0317.html

Originally Posted by aldaeron

In the left design, would the green piece of angle count as part of the robot? I was planning to attach it with wood screws (the horizontal black screw looking thing) meaning it would not be meant to be removed. Then I would use bolts (the vertical black screw looking thing) to attach to tapped holes in the frame.

To me that seems like it falls under part G and I and therefore the weight counts as the bumper weight not the robot weight.

Al's the inspector, not I, but in my opinion if the brackets remain attached to the bumper, they are weighed with the bumper, as is the connector bolt or pin.

By the way, for anyone still reading, this is an example of a good way to ask questions. aldaeron did some research, drew diagrams, referenced the rules, and asked for confirmation. Much better than a terse "How do you think I should attach my bumpers?" query. Rep given.