Video 1:
https://www.youtube.com/watch?v=pzwTzDlS8Pg&t=11sVideo 2:
https://www.youtube.com/watch?v=NEqbwxpHd0k• 1:14 scale, which is the most common scale for RC model construction equipment and compatible with TAMIYA trucks and trailers
• Length 730 mm (fully extended), Width 178 mm, Height 307 mm (fully extended) 515mm, max. Depth below ground about 235 mm
• Weight about 3 kg including battery
• Cavities are filled with 4.5 mm steel balls to obtain as much weight as possible
• The bottom frame is reinforced with threaded rods
• No expensive laser cut steel plates are required
• Sturdy 360° endless swing unit with big double ball bearings and gearbox shaft with counter ball bearings
• 3 channel hydraulics for boom, stick and bucket with brushless pump. Some experience with RC hydraulics troubleshooting and optimization is strongly recommended
• Instructions for DIY ESP32 sound- and light-controller are included. Precompiled software can be installed in your browser
• Cheap Flysky FS-I6S remote can be used thanks to the sound controller, which is controlling the hydraulics as well
• One pair of electric actuators for the wheel lifting mechanism
• Four angle gear motors for the wheel drive and one for the swing unit
• Detailed cab interior, openable front door. A 1:14 scale driver fits inside, not just a 1:16 scale Bruder figure
• 2 headlights and 2 taillights, compatible with 5mm LED
• Brackets and openings for wiring and my ESP32 trailer controller, which is used for sound, lights and hydraulics control
• Room for a 3S, 1300mAh LiPo battery with a size of about 80 x 35 x 25mm. It is good for about 45 minutes of run time.
• Ball bearings are used for wheels, swing unit, boom, stick and bucket
• Scale looking, 3D printed tires (printed in Creality TPU)
• A lot of details like checker plate on top of the taillights, grab handles, footsteps, mirror and window seals
• Printable on an FDM 3D printer with at least 250 x 210 or 256 x 256 mm bed size and 220 mm printing height. I used a Prusa MK4 with 0.4mm nozzle and a Bambu Lab A1 with AMS and hardened steel 0.4mm nozzle
• No special tools required
• Similarities with a real excavator of a former French manufacturer are random. The logos are just en example and not included.
• If you have any issues or questions visit my Facebook group:
https://www.facebook.com/groups/969278734997783