by E-Stellinga

fusion 360 file:
https://a360.co/35C7Ndf

This was my first try at modeling my own rc moddel so it stil had some issues which i didn't fix jet. Thats why it might be helpfull to use a dremel in the building proces to sand down some parts.

The issues that occured where the following:

• Underpowerd motor for turret rotation

• front blade doesnt rase/lower properly because of the servo's running in opposite directions

• cilinder breakdown because of the way the bolts are attached in the cilinder.

• the top frame isnt stiff enough and bends.

• i also had a lot of problems because i used arduino to control the machine and i had to few coding experience. so you might want to order a 10 channel remote (for instant flysky i6s)

• when both boom cilinders are attached they get jammed

• slow

needed

• about 3kg of fillament

• 23x 10mm outer diameter / 5mm inner diameter / 4mm hight bearing

• lego technic differential + gears

• i dont know which driving motor i used but its diameter was 25 mm

• wires

• 3/4x N20 geared moter with threaded end

• 5x sg90 micro servo

• 5x motor driver (i used 3x L298)

• bruder wheels

• motor to turn turret (i used 28BYJ-48 which was underpowered)

• 5x M5 bolt + nut

• +/- 60x M3 bolt + nut

• 5x5mm button for end stops

• +/- 70cm 5mm rod

• reciever (i used a arduino mega(excavator), arduino uno(remote) and 2x hc-module)

I hope i didn't forget any files or information.
Good luck