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2014 Drive in a Day Chassis Kit

 2014 Drive in a Day Chassis Kit
  • Cross Rail (2-pack)
  • Battery Mount
  • Chassis Accessory Rail (2-pack)
  • Bumper Mount Angle (8-pack)
  • Corner Gusset (8-pack) (for mounting Cross Rails)

2014 Drive in a Day Chassis Kit

Immediately following the 2014 FIRST ® Robotics Competition kickoff, two teams of VEXpro engineers faced off in a three day robot building whirlwind known as Build Blitz. Team JVN designed a new sheet metal base with the intent that any team would be able to benefit from the lessons learned during Build Blitz, and the 2014 Drive-in-a-Day is the result of that effort.

The 2014 Drive in a Day is a configurable chassis system that produces lightweight, affordable, and robust sheet metal drivetrains. With a 0.5" pitch and a wide variety of mounting holes for motors, gearboxes, and bearings, teams can use the 2014 Drive in a Day to build the drivetrain that's right for them.

  • Supports 4WD or 6WD (with 1/8" drop center)
  • Optional Cross Rail can be used for a 5-wheel H-drive (note: Cross Rail requires Corner Gussets)
  • Fits 3.25" or 4" wheels
  • Works with Omni, Mecanum, or Traction Wheels
  • Natively mounts many VEXpro gearboxes
  • Configurable for either live or dead axles
  • Mounts CIM-style motors directly to the side rails for a clean and efficient single reduction

Note: Hardware not included.

Product Name P/N: Availability Price Qty
VEXpro 2014 Drive in a Day Chassis 217-3648
In Stock
$149.99
Cross Rail (2-pack) 217-3654
In Stock
$39.99
Chassis Accessory Rail (2-pack) 217-3655
In Stock
$14.99
Battery Mount Kit 217-3656
In Stock
$24.99
Corner Gusset (8-pack) 217-3657
In Stock
$14.99
Bumper Mount Angle (8-pack) 217-3658
In Stock
$14.99
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2014 Drive in a Day Chassis Kit

VEXpro Build Blitz - JVN Discusses the 2014 Drive in a Day

A Chassis System for Any Team

The 2014 Drive in a Day is a configurable chassis system that produces lightweight, affordable, and robust sheet metal drivetrains. With a 0.5" pitch and a wide variety of mounting holes for motors, gearboxes, and bearings, teams can use the 2014 Drive in a Day to build the drivetrain that's right for them.

The Drive in a Day's side rails are where teams are going to see the most benefit. Years of FIRST ® Robotics Competition experience have led to an optimized hole pattern that can mount just about any configuration that would be applicable to the 2014 game, Aerial Assist.

  • The live axle holes are spaced to perfectly fit 140T timing belts and 42T pulleys in a 6WD configuration
  • Mounting holes for CIM-style gearboxes can direct drive wheels via a 12:72 gear ratio (11:72 using the 11t gear with 12t center distance) OR a 14:70 ratio (13:70 using the 13t gear with 14t center distance)
  • Note: The 3 CIM Ball Shifter will not use all of the mounting holes shown

  • The "Nemo Hole" was added after it was suggested by a post on Chief Delphi

  • When the side rail is inverted, it becomes set up for dead axles
  • Dead axles use the same 140T timing belt and 42T pulley spacing as the live axle side
  • Includes an inverted "Nemo Hole"

2014 Drive in a Day Application Concepts (click for larger view)

Belt-Driven Six Wheel Tank Drive

  • (4x) 4" VersaWheel DT's
  • Existing mounting holes are spaced for 42T VersaPulleys with 140T timing belts
  • No tensioning required
  • Can use 3 CIM Ball Shifter or Single Speed Double Reduction
  • Recommended: 3 CIM Ball Shifter with 11T pinion, 2.64 spread ratio, 50:34 third stage
  • High gear loaded output speed: 13.49 ft/s
  • Low gear loaded output speed: 3.67 ft/s
  • Bill of Materials (.XLS)
  • CAD File (STEP)



4" Mecanum Drive with CIM + RS-775 Motors

  • (4x) 4" Mecanum Wheels
  • Perfectly round mecanum wheels allow for smooth holonomic drive
  • (4x) CIMs direct mounted with 72:11 single reduction
  • (4x) RS-775 motors mounted using CIM-ile gearboxes provide additional power
  • Loaded output speed: 11.47 ft/s
  • Bill of Materials (.XLS)
  • CAD File (STEP)

Chain-Driven Six Wheel Tank Drive (Using "Nemo" hole)

  • 3.25" VersaWheel DT's
  • Dead axle "Nemo holes" are spaced for #25 32T plate sprockets and #25 roller chain
  • No tensioning required (other than chain stretch)
  • Can use 3 CIM Ball Shifter or Single Speed Double Reduction
  • Recommended: Single Speed Double Reduction with 12T pinion and 34:20 optional gearset
  • Loaded output speed: 10.76 ft/s
  • Bill of Materials (.XLS)
  • CAD File (STEP)



H-drive

  • (5x) 4" Omni Wheels
  • The first COTS H-drive base designed for FIRST ® Robotics Competition teams
  • (5x) CIMs direct mounted with 72:11 single reduction
  • Can add additional CIM-style motors using existing mounting holes
  • Loaded output speed: 11.47 ft/s
  • Bill of Materials (.XLS)
  • CAD File (STEP)

Technical Specifications

    VEXpro 2014 Drive In A Day Chassis (217-3648)
  • (4) Chassis Side Rail
  • (2) Chassis End Rail

  • Cross Rail (217-3654)
  • (2) Cross Rail

  • Chassis Accessory Rail (217-3655)
  • (2) Chassis Accessory Rail
    Battery Mount Kit (217-3656)
  • (1) Battery Box
  • (1) Battery Strap

  • Corner Gusset (217-3657)
  • (8) Corner Gusset

  • Bumper Mount Angle (217-3658)
  • (8) Bumper Mount Angle
Material Type: 5052-H32 Aluminum

Material Thickness: 0.125"

Size (Chassis Kit Dimensions): 28.5" x 26.5"

    Weight:
  • Chassis Kit (4 side rails, 2 end rails) - 6.8 lb
  • Battery Box - 0.6 lb
  • Cross Rail - 0.8 lb
  • Accessory Rail - 0.2 lb
  • Set of 8 Bumper Mounts - 0.4 lb