3D Printed RC Wheeled Mini Excavator in 1/8.5 scale

3D printed radio-controlled model of a wheeled mini excavator in 1/8.5 scale.

You can also find a Tracked version of this model.

This model can be used with a 2 axle Dump Trailer.

- Video operating with Trailer 
- Videos operating with different bucket
- Videos how to rescue model if you stuck

To print this model, you need about 2.7kg of filament of different colors and types. All parts can be printed on printers with a print area of 180x180mm. Most parts can be printed with any type of filament, such as PLA, ABS, PETG, but tires must be printed with flexible filament such as TPU A85! Therefore, your printer must be able to print with flexible filaments! More information about filament types and printing settings can be found in the printable parts list.

All the necessary information for building the model, such as a list of non-printed parts for purchase, a list of fasteners, some characteristics and features of the model, you can find in the assembly instructions for this model.

In the archive with the model, you can find  parts combined into small groups, which will help you simplify the process of preparing parts for printing. Some print groups are too big for 180x180mm printers, so if you have a printer like that, you split group into individual parts in your slicer! Some individual parts are too large for 180x180mm printers, so you will need to print these parts from the Alternative Parts folder.

The archive also contains some alternative versions of parts for printers with 300x300mm print area. Some parts are combined, which will simplify the process of assembling the model!

All parts for the model are designed to be printed with minimal using or not using support material. Check out the printable parts list at the link above!

The main characteristics of the model:

- RC model, 1 : 8.5 scale 

- Realistic exterior look

- Detailed interior

- Openable Door, Tailgate, Hood

- Fully functional model

- Electric linear actuators used

- Wormgear metal transmission

- Metal gears and shafts in the axles

- Wheels from flex filament

- 3 style of tires included

- 182printing parts

- 38 printing groups

- 2,7 kg filament

- Can be printed with 180x180mm printers

For more sizing information, see the assembly instructions at the link above!

Update 29 July 2025------------------------------------------------------

- Added a tool changing mechanism

Update 29 July 2025------------------------------------------------------

- Added Bucket v2. Bigger capacity comparison with v1 and also metal blade, allow you to dig with more efficiently.

- Added Clamshell bucket that give you new experience with model operating. Need to be used with tool changing mechanism, that was added before.