A Conglomeration of FTC Chassis

grabcad

These are a few different chassis I designed for Ultimate Goal (2020-21), but these are pretty universal and can be used for almost any season. Went through several revisions before settling on Chassis v4 for this season. The original design goal for these was to be symmetrical from front to back so we could use a dual intake (except v3). All of these use standard Gobilda parts and have Wizards.exe odometry pods. Figured I might as well release these into the wild for anyone to use or draw inspiration from, instead of them gathering proverbial dust in my CAD folder. Summary/notes of Chassis v1:>Your standard H-frame belted drive train, nothing to unique.>20.75:1 reduction using 13.7 (425 RPM) motors.>The bracing in the middle is a little excessive, would just use a 43-2 Quad Block today, however, this means only ~1mm of clearance between the motors.>Uses legacy Gobilda Mechanum Wheels, if you swapped these out for the new Mechanums then you use 10 Hole U Channel for the cross beams.Summary/notes of Chassis v2:>Similar to v1, the biggest difference is the less robust mid-frame, using two low side U channels instead of two regular U channels. >Motors are slightly closer together, so the belts are a bit longer. >no render for this one :(Summary/notes of Chassis v3:>The main design goal for this Chassis was to have the largest amount of room in the middle as possible to favor a longer intake over a dual intake.>This uses 19.2:1 (312RPM) Motors>Uses 11 Hole U-channel cross beams, could use 12 hole if you deleted the outer, 7 Hole U channels (and still fit in the 18").Summary/notes of Chassis v4:>Chassis v4 is the most unique chassis I designed this year. The main difference is that the motors are mounted above the Deadaxle Mechanum Wheels, this opens up a lot of space in the middle to mount REV hubs or other fun bits. Also means that the weight of the motors is directly above the wheels meaning there is theoretically more traction. >v4 has some custom parts that are designed to be 3d printed. In early versions, there were mounts for REV hubs but we cut those out to make room for the Intake. In v4.2 the only custom parts are for the odometry pod and to space out the motor shaft from the timing belt pulley.>It should be noted that v4 was designed to fit a very specific design goal for a dual intake (design will be published soon).>19.2:1 (312RPM) Motors>If you are unfamiliar with Deadaxle Wheels, or want to take a closer look, I have included a STEP file at the end.Of course, all STEP files have been provided. If you have any questions, feel free to leave a comment, DM me or find me on the FTC discord, @Mason| 14147With love, High Voltage Couch Bananas 14147