I remember seeing once a 3D printed part that would be attached to swerve module(MK4I) that would allow you to place gussets on the outside of the frame perimeter that were <=.25"
Is this a thing? If so, where can I find it? And most importantly, is it legal? Because the gap would only technically be <=.25" I assume it still passes R410.
Thanks in advance!
Generally speaking, that particular gusset type would actually become the Frame Perimeter. (Itās NOT a āminor protrusionā.)
That said, as long as it didnāt cause you to be over the max Frame Perimeter, and you still properly supported your bumpers on the revised Frame Perimeter per R410, thereās nothing saying you canāt use something like that.
It seems pretty common to design swerve dust shields that stick out past the module and tube frame. If that gap is larger than 1/4ā or your bumpers are a bit loose, youāll need shims to take up that space every 8 inches.
Thatās great to hear! I threw in the ākindaā because it does basically become the frame perimeter but it is built outside of the walls that would normally define the frame perimeter.
Do youāor anyone for that matterāknow of publically available designs for this that are compatible with the MK4I?
I know 111 and I think 3005 released designs for MaxSwerve, but Iām not familiar with the MK4i versions. Itās a pretty quick CAD project to design your own though I think it took me about 30 min to model a basic version.
We can definitely do it, just didnāt want to reinvent something that may already be available. Thanks for the help.
ābasicallyā, nothing. Thatās exactly what it does. Itās not a minor protrusion.
Iām going to remind readers that in FRC, āFrame Perimeterā has a very specific meaning, which informs a large number of other rules both in design/build and in gameplay. If youāre thinking of the Frame Perimeter as ātubes around the outside of the frameā but then you put gussets on there, you just changed the definition of your Frame Perimeter, and should plan accordingly.
My apologies for being perhaps overly pedantic. I just have a long memory of issues with these things, mostly caused by people not fully understanding the Frame Perimeter and where it actually is. Iām not sure how many teams Iāve had rework their bumpers because of this type of understanding issueā¦ I want you guys to get it right the first time so you can show up at inspection and get the very fast āitās good!ā not the āyou need to rebuild all your bumpersā.
(Back in when this was first introduced, just for bumper build at that time, bolt heads were included. That lastedā¦ weeks maybe? Some of the other old-timers can correct me on that, we just kept asking about these things and how to measure 'em.)