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AndyMark AM14U4 User Manual

Chassis base kit for the first robotics competition
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User Guide
AM14U4 Chassis Base Kit for the
FIRST® Robotics Competition
November 2019

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Summary of Contents for AndyMark AM14U4

  • Page 1 User Guide AM14U4 Chassis Base Kit for the FIRST® Robotics Competition November 2019...
  • Page 2 AndyMark – Your Robot Parts Experts AndyMark, Inc. was founded in 2004 by Andy Baker and Mark Koors to design and sell unique mechanical parts for competition and educational robotics. Through their volunteer work at FIRST® Robotics Competition events they identified a niche market and began designing and selling robotics components for FIRST ®...
  • Page 3 10.0 ft/sec (included) (am-0034) (am-0149) (am-0747) (am-0885) 12.75:1 8.4 ft/sec (am-0034) (am-0149) (am-0151) (am-0150) **AM14U4 speed estimation is based on calculations using 6” wheels, and one CIM motor per TB Mini running at 4100 rpm, or 75% of free speed.
  • Page 4 Power Train Specifications The AM14U4 Kit of Parts Chassis Base Kit includes Gates HTD belts and the parts needed to build a 6” 6-wheel drive chassis with a direct drive center wheel in three recommended frame sizes. Other belt sizes are available on AndyMark.com or through Gates to allow for many more configurations.
  • Page 5 Wheel and Belt Assembly Bill of Materials Component Part Number Quantity Part Photo 6" HiGrip Wheel am-0940b 500EX Hex Hub am-2568 Gates HTD 15mm wide, am-2266 160 Tooth Belt for Long Chassis Gates HTD 15mm wide, am-2704 120 Tooth Belt for Wide Chassis Gates HTD 15mm wide, am-2571...
  • Page 6 Toughbox Mini Bill of Materials – Build two per Chassis Component Part Number Quantity Part Photo TB Mini Housing am-0650 TB Mini Hex Output Shaft am-2566a_K19 with Steel Dowel TB Mini Small Hex Shaft am-0152 TB Mini Kit 1– am-14U4_TM1 50 Tooth, 3/8”...
  • Page 7 AM14U4 Outer Plate am-3921 AM14U4 Inner Plate am-3922 500 Churro, 24.25" am-2974 AM14U4 – Churro Screw Kit – AM14U4_CK1 1/4-20 x 0.75” Thread am-1310 Rolling Screw AM14U4 – Axle Kit – AM14U4_CK2 3/8-16 x 4.25” HHS Bolt am-1297 3/8-16 Nylock Nut am-1054 AM14U4 –...
  • Page 8 Frame Diagrams & Cut Lines: The AM14U4 is designed for multiple configurations. Chassis pieces should be measured and cut down to size; some possible configurations are shown below. Ensure that your final frame size complies with all current rules. Belts for...
  • Page 9 6” HiGrip Wheel and Pulley Assembly Instructions Outer Wheels (QTY 4) Step 2: Using six 10-24 x 1.25” (am- Step 3: Press two 1614ZZ bearings Step 1: Add two pulley halves (am- (am-0209) into each side of the 2234-half) to the wheel (am-0940b). 1266) thread forming screws, attach the pulley halves to the wheel.
  • Page 10 Toughbox Mini Assembly Instructions – Build 2 gearboxes Step 2: Insert the TB Small Hex Shaft (am-0152) into Step 1: Press two R6ZZ bearings (am-0516) into the two R6ZZ bearing closest to the flat edge of the housing. center holes of the TB Mini Housing (am-0650). Ensure they are fully seated and inserted all the way into the housing.
  • Page 11 Chassis Assembly Instructions Step 1: Press a FR6ZZ (am-0028) and a FR8ZZ- Step 2: Attach the top flange of an Inside Plate to the HexHD (am-2986) bearing into the center holes on top (large) flange of an End Plate (am-3920) at the 8th each Inside Plate (am-3922).
  • Page 12 Step 5: Attach the other End Plate to the other end Step 6: Attach the two (cut to length) Long Churros of the Inside Plates. between the Inside Plates using four ¼-20 x 0.750” thread forming screws (am-1310). A ½” wrench can be used to hold the churro while tightening.
  • Page 13 Step 9: Slide two 5/16” washers (am-1009) onto each CIM Step 10: Line up the CIM motors with the mounting motor shaft against the round boss of the motor. Place holes in each Toughbox Mini. Secure each motor with the Machine Key (am-1121) into the keyway of the motor gears installed to the Toughbox Mini housing using shaft.
  • Page 14 Step 14: Press the FR8ZZ-HexHD Bearing (am-2986) Step 15: Place each Outside Plate into the ends of both End Plates with the flanges of the Outside Plate into the center hole of each Outside Plate (am-3921). pointing away from the Inside Plate. Ensure the Hex The bearing flange will be on the side opposite the Bearing is aligned to and installed on the Toughbox plate flanges to ensure the bearings do not fall out...

  • Page 15: Bottom View

    Step 18: Secure the Outside Plates to each Churro Standoff using 1/4-20 x 0.75” thread forming screws (am-1310). A 1/2” wrench can be used to hold the Churro Standoffs while tightening. Step 19: There are different axle bolt locations for each chassis configuration. Locate the hole to match the chosen belt and frame size.
  • Page 16 The wheels should still easily turn, and the axle bolts should be able to spin with a light turn of a wrench. You’ve completed the AM14U4 Kit of Parts Chassis. For more information, tips and instructions on how to mount your battery, bumpers, and more visit...