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BonicBot A2AssemblyHardwareBase Assembly

Base Assembly

Step 1: Collecting All Required Parts

3D Printed Parts

Base Rear Left, Base Rear Right, Base Front Left, Base Front Right, Base Center Cover, Battery Holder

Images of Base Rear Left, Base Rear Right, Base Front Left, Base Front Right, Base Center Cover, Battery Holder

Base Joint, Battery Rail, BCC Acrylic Holder, Motor Stabilizer

Images of Base Joint, Battery Rail, BCC Acrylic Holder, Motor Stabilizer


Insert M4 nuts into the designated holes as shown below and glue them if required. Repeat this process for all applicable parts.

Images of inserting nut into base part

Assemble the parts as shown below to form the base structure by fixing the connecting parts properly together using cutting pliers or similar tools.

Image of base parts connecting

The assembled base structure should appear as shown below.

Image of base fully connected

Insert 8 x M3 nuts into the Base Center Cover and secure it to the base structure using 8 x M3 bolts.

Image of Base Center Cover joining


Electronic Parts

  • Johnson Motor x 2
  • BMS connection
  • RP LiDAR
  • Switch
  • DC Jack (Female)
  • Battery Pack

Images of Electronic Components


Mechanical Parts

  • Base Acrylic
  • BCC Acrylic
  • Wheel Bracket x 2
  • Coupler x 2
  • Wheel x 2
  • Caster Wheel x 2
  • Aluminium Square Pipe x 2 (51.4 cm, 49.8 cm)

Images of base mechanical parts


Step 2: Base Body Assembly

Secure the base joint on the base acrylic using 6 x M4 nuts and M4 bolts.

Image of Fixed Base Joint

Mount the Johnson motor on the Motor Stabilizer for support and slide it into the base joint.

Image of fixing motors

Install 2 x wheel brackets on the base acrylic using 4 x M4 nuts and bolts.

Image of fixing brackets

Repeat the same process for the second motor.

Secure the Johnson motors to the brackets using 4mm bolts.

Image of screwing motor to bracket

Insert 4 x M4 nuts into the battery rail and secure it to the base acrylic along with the caster wheels.

Images of fixing Battery Rail and Caster Wheels

Attach 2 x couplers to the Johnson motors and tighten using an Allen key.

Image of Fixed Coupler

Install one 51.4 cm aluminium square pipe on the front and one 49.8 cm pipe on the rear portion of Base Joint.

Image of fixing aluminium

Attach 2 x wheels to the couplers using its bolts and tighten it using allen key.

Image of fixing wheel


Battery Holder Setup

Install the Switch and DC jack in their respective slots and insert the BMS on the back pocket of the battery holder without damaging the wires. And then insert the battery into the Battery Holder carefully

Image of Battery Holder Setup

Slide the BCC acrylic holder through the aluminium pipe and secure it in place using 2 x sharp screws by aligning its holes with holes provided on the aluminium square pipes

Image of Fixed BCC Acrylic Holder

Mount the RP LiDAR sensor on the front section by screwing it from below using 4 x 2.5m bolts of size 4mm.

Images of fixing RP LiDAR

Secure the base portion to the base acrylic using 8 x M4 bolts on the lower part of base acrylic.

Image of Fixed Base

Slide the battery holder through the battery rail and secure it in place using 2 x M3 bolts on the lower part of Base Acrylic

Images of fixing battery holder setup

Lower the BCC acrylic along the aluminium pipes and secure it to the holder using 4 x M3 bolts.

Image of Fixed BCC Acrylic


The base assembly is now complete.

Image of Base Portion Assembled


Middle Shell Parts

Middle Lower Shell, Middle Center Shell, Middle Top Shell, Body Center Joint

Images of Middle Lower Shell, Middle Center Shell, Middle Top Shell, Body Center Joint


Secure the Body Center Joint onto the Middle Top Shell using 4 x M4 nuts and bolts by inserting the nuts into the slots of the Body Center Joint and screwing it from below.

Images of Middle Shell setup

Assemble the Middle Lower Shell, Middle Upper Shell, and Middle Top Shell using 4 x M3 nuts and bolts.

Images of Middle Shell setup

Slide the complete middle structure through the aluminium pipes onto the base of the robot. Screw the Body Center Joint to the aluminium pipe by aligning the hole on the aluminium with the joint to make it stay in place. Ensure proper routing of all wires and cables from the base to the upper body.

Images of assembled lower body

Make sure the right motor’s cable is passed through the right hole of Middle Top Shell and the left motor’s cable through the left hole.

The lower body assembly is now complete.

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