Chassis (English): Unterschied zwischen den Versionen

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(Ardumower 1.0 Chassis specifications)
(Ardumower 1.0 Chassis specifications)
Zeile 22: Zeile 22:
 
* Free wheel: 125mm diameter
 
* Free wheel: 125mm diameter
 
* Gear motors: 2 x DC 24V planetary drive, 31 rpm, 2.45 Nm, 8mm shaft, with integrated encoders  
 
* Gear motors: 2 x DC 24V planetary drive, 31 rpm, 2.45 Nm, 8mm shaft, with integrated encoders  
 +
* A rotation speed up to 31 rpm allows to move the robot at sufficient speed (at up to meter/sec = 31rpm/60 * PI * 0.25m = 0.4m/sec using 250mm diameter wheels)
 +
* A high torque (2.45Nm) guarantees that the robot can climb small hills as well (with 2 motors, 0.125 radius wheel, 31rpm = 0.4m/s, acceleration = 0.2 ( 1/2 of nominal speed) see calculator
 +
* Integrated encoders, so it can measure the rotation speed and the distance
 
* Battery: Lithium-Ion 29.4V
 
* Battery: Lithium-Ion 29.4V
 
* Max. incline: approx. 30%
 
* Max. incline: approx. 30%

Version vom 15. April 2020, 05:16 Uhr

This page describes the assembly of the Ardumower chassis that you can purchase via the shop Shopping.png.

Ardumower-chassis.jpg

Ardumower 1.0 Chassis specifications

  • Dimension (L/B/H): 60x36x25cm
  • Total weight: approx 9 kg (including all components - motors, battery, PCB etc.)
  • Adjustable mower motor height
  • Mowing motor: 24V DC, 3150 rpm, 140 mNm, 46W
  • Mowing disc: 190mm diameter, 3 blades
  • Wheels: 250mm diameter
  • Free wheel: 125mm diameter
  • Gear motors: 2 x DC 24V planetary drive, 31 rpm, 2.45 Nm, 8mm shaft, with integrated encoders
  • A rotation speed up to 31 rpm allows to move the robot at sufficient speed (at up to meter/sec = 31rpm/60 * PI * 0.25m = 0.4m/sec using 250mm diameter wheels)
  • A high torque (2.45Nm) guarantees that the robot can climb small hills as well (with 2 motors, 0.125 radius wheel, 31rpm = 0.4m/s, acceleration = 0.2 ( 1/2 of nominal speed) see calculator
  • Integrated encoders, so it can measure the rotation speed and the distance
  • Battery: Lithium-Ion 29.4V
  • Max. incline: approx. 30%
  • Material: PE-HD plates (8mm) and alumnium profiles

Videos

  1. Building an Ardumower: chassis, motors, tires assembling
  2. Building an Ardumower: chassis, motors, tires assembling (slow)
  3. Overall impression
  4. Loundness test
  5. Gear motor test
  6. Gear motor hardness test
  7. Mowing motor hardness test
  8. Perimeter wire test (indoor)
  9. Perimeter wire test (120m outdoor)
  10. Obstacle detection via motor current
  11. Obstacles detection via ultrasonic
  12. Robot releases itself
  13. Robot releasing long-time test
  14. Plastic blades test
  15. Docking test (very initial prototype)
  16. Rain sensor test
  17. 3D simulation

Assembly: required tools

  • Screw driver
  • Imbus screw driver

Case assembly

Gear motors

Tires

Mower motor

Mowing disc

Free wheel

Further links

Detailed step-by-step instructions