Screw-propelled vehicle (prototype)

thingiverse

Screw-propelled vehicle, sounds cool, right? I assemble the platform for testing screw-propelled chassis in order to check the possibility of using it in any winter robotics projects. I know, I got carried away a little and stylized it as a Soviet screw-propelled vehicle. So, it turned out quite funny, although not without flaws, of course. Well, check the video for more details. ATTENTION: This prototype is very crude and it still has a lot of shortcomings. But, if someone wants to create it, it's better to take them into account right away. 1) The platform often sinks in fresh snow due to its heavy weight. To solve this, it's worth increasing the diameter of the screws. 2) Motors are very weak for this platform. It's worth replacing them with more powerful ones. More: https://youtu.be/GM8qZVZJs2o Code: https://github.com/TrashRobotics/ScrewPropelledVehicle List of parts required for printing: - screw_propeller_l.stl x1; - screw_propeller_r.stl x1; - screw_propeller_motor_cup.stl x2; - screw_propeller_bearing_cup.stl x2; - motor_holder.stl x2; - motor_cup.stl x2; - bumper.stl x1; - cabin.stl x1; - 18650_cup.stl x1; Main parts - Arduino pro mini; - 2 x 18650 batteries and battery box for them; - toggle switch KCD-11; - L298N motor driver; - yellow arduino TT gearmotors; - HW-517 or other transistor switch; - HC-06 bluetooth module (optional); - KY-022 IR receiver and remote control for it; - piece of plywood 305x170x6 mm; - [screws, holders, cab, etc.](following stl-files) Fasteners (length in millimeters): - Bearing 623 2RS (180023) 3dx10Dx4H (mm) x2; - Self-tapping screw DIN7982 3.5x9.5 x2; - Self-tapping screw DIN7982 2.9x16 x12; - Self-tapping screw DIN7981 2.2x9.5 x12; - Self-tapping screw DIN7981 2.9x9.5 x12; - Screw DIN7985 M3x25 x6; - Nut DIN934 M3x0.5 x8; 3D PRINTING SETTINGS Designed for PLA. Support is required only in motor_holder.stl and some problem areas for some fasteners or at the joints of parts. I recommend printing the parts as they're set in stl files. Nozzle - 0.4mm. Layer height - 0.2mm. Speed and Infill should be chosen as you see fit.