![]() Is there a correct size (or at least best size) for 3/16" rivets in FRC?įinally, when we drill out rivets, the lazier among us (including yours truly) like to let the heads of the rivets stack up along the drill bit. The #8-6 bits are nice because they’re also clearance for 10-32 screws, but they also produce loose fits for the rivets, which can sometimes make out frames wobbly. Second, what drill size is the “right” size for 3/16" rivets? On our team we’ve used everywhere from 3/16" (fractional) drill bits to # 6 number bits. Is there another way to remove this type of rivets? However, with the nub of the mandrel still sticking out in the center of the rivet, it becomes very difficult to start the drill on the center. Is there a root cause to this type of problem? Is there some sort of technique that can keep this from happening? If the mandrel does break halfway, what’s the best way to uninstall the rivet? For normally installed rivets, we usually just take a # 10 drill and drill through the center of the rivet. They stick out, look ugly, and make it very hard to take out the rivet. We use a lot of rivets, probably on the order of a few hundred in a serious weekend of building, so I thought it would be good to get the CD perspective on a few small problems with rivets that have bothered us in the past.įirst, we sometimes see the mandrel break about halfway down (instead of inside the rivet body like it’s supposed to) when we’re installing a rivet, which gets to be a real pain. My team does what would probably be considered a very “West Coast” frame setup (2x1 aluminium box tubing, etc) but tends to prefer using 3/16" rivets over welding. I thing that among all the pre-kickoff game hint madness, it’s about time for a good old technical thread. ![]()
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