Ardumower Arctic Hare mod by Jussi

thingiverse

This is a remix of raess Ardumower Arctic Hare design. Most parts are printable without supports and some need supports but less than the original. The parts are stronger and many little things have been changed here and there. It should be more waterproof, etc. Probably none of these parts can be mixed with original design parts. The biggest change is an added cover for cutting blades. The charging station is my own design. Station contacts are 20x20 U-shaped aluminum extrusion with springs. Mower contacts are made from 12 mm copper capillary end caps and there are magnets inside to ensure contact. I printed all mower parts with devil design ASA except wheel surfaces, which are TPU. These parts are made for a Prusa mk2 printer, so they are bigger than originals. All except wheel surfaces are printable in a 250x210x200 building space, and wheel surfaces have a diameter of 218mm. Electronics, motors, blades, etc., are from Marotronics (this kit contains a lot of stuff): https://www.marotronics.de/Elektronik-Set-fuer-den-Rasenroboter-aus-dem-3D-Drucker Battery pack casing is N.E.S.E module. Printed them on PETG. N.E.S.E module models and parts can be found here: http://18650.lt/ Cells: Samsung 35E 18650 3500mAh BMS: 7S 24V 20A Protection Board Charging Controller TE992 Other parts used: Rain Sensor: FC-37 or YL-83 Temperature & humidity: DHT22 NEO-6M GPS module GY-801 imu module Waterproof ultrasonic sensors: JSN-SR04T Bumper: EPDM foam rubber D-profile SK 21x17 mm BumperDuino board: https://www.marotronics.de/Bumper-Duino-Dual-Drucksensor-Board-zB-fuer-Arduino-Raspberry-pi Raspberry Pi Zero w, zero camera and 18 x 1.2 mm round glass Raspberry Pi 3b+ 24VDC/5VDC 5A step down buck for raspberry pi's M12 cable glands M3, M4, and M5 A2 stainless screws, washers, nylon nuts, and square nuts. 2.5mm silicone rubber cord to drive motors lid gasket Power connectors: IP68 SP13 Waterproof Aviation Plug Socket Connector 2 pin USB socket: CONEC 17-250021 Socket; USB B mini Front wheel shaft can be made from stainless 8 mm threaded rod and nylon nuts Bearings for front wheel 688-2RS Sanitary silicone between parts for waterproofing 3mm aluminum tig welding rod for pcb box lid hinge 250m perimeter wire 10 Ohm 50 W power resistor for perimeter wire circuit Filament usage around 11kg ASA and 0.8kg TPU. Printing time around 600h with 0.6 nozzle and E3D Volcano hotend. Software: Ardumower - The Do-It-Yourself Lawnmower Robot https://www.ardumower.de/index.php/de/ Github: https://github.com/ardumower My building topic: https://www.ardumower.de/index.php/en/forum/your-projects/1864-arctic-hare-mod-by-jussi UPDATE: 24.4.2019 Step-file is now uploaded, assembly part names are partly Finnish, Swedish, and English. You have to deal with that. UPDATE: 30.4.2019 Mower is now completed. Some pictures and testing video uploaded. https://youtu.be/zPInJqTAmYc UPDATE: 4.5.2019 Parts I used are now listed in the description. Next thing to do is perimeter wire installation and some kind of shelter for charging station and mower. UPDATE: 8.9.2019 Video added, mower drives smooth with IMU and odometry. EPDM foam rubber bumper was too sensitive. Garden hose works much better. Center U.S. sensor is too low; it can't be used at all. Otherwise, it has been working as expected. I have some upgrades coming during winter: wlan antenna, more bumper hose, U.S. sensors to new positions, etc., minor things.