ESP8266 2WD Robot components

3D printed components for a 2WD Robot managed by a ESP8266 microcontroller
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updated May 27, 2021

Description

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A set of printed components to build a 2WD Robot that is controlled and managed by a ESP8266 microcontroller, packaged as a NodeMCU v1.0 module, and connected to a L293D ESP-12E motor drive module to control two geared drive motors. 

The robot has been designed to allow individual customisation with Lego blocks and/or card cut-outs that insert into custom 3D printed Lego-compatible blocks.

All the components use 1.75mm PLA and a layer height of 0.15mm with print details for each component produced on an i3 Mk3 shown in the table below.

Further details on the build and use of the robot are at this link and example software to operate the robot is downloadable from here.

 

component file name/descriptionbrim (mm)filament 
length (m)
print time 
(i3 Mk3)
chassis_plate_ESPonly_narrow03_repaired.stl: main chassis plate with 
Lego-compatible studs on the top surface
1013.594h 35m
4x_motor_fixing_tab02.stl: tabs that insert into the chassis plate to 
secure the drive motors
31.3631m
HC-SR04_fixed_plate01.stl: mounting bracket for a 
HC-SR04 ultrasonic sensor
30.6115m
stretched_40mm_caster_loose03.stl: rear castor that holds 
a marble ball 
52.551h 34m
LEGO_8x1_sheet_connector_offset02.stl: 8x1 Lego-compatible 
‘card connector’  block
31.6358m
LEGO_5x1_sheet_connector_offset02.stl: 5x1 Lego-compatible 
‘card connector’  block
31.0344m
LEGO_3x1_sheet_connector_offset02.stl: 3x1 Lego-compatible 
‘card connector’  block
30.6233m
LEGO_7x1_front_sheet_connector01_rotx90: 7x1 Lego-compatible 
‘card connector’  block rotated 90 degrees for use at the front of 
the robot (needs support on the build plate only)
31.5141m

 

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