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SMARS modular Robot

Creation quality: 5.0/5 (5 votes)
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  • 1 make


3D model description

SMARS acronym of “Screwless/Screwed Modular Assemblable Robotic System” is a simple robot designed to the educational field. The main features of SMARS are the reduced number of components, the possibility of mount it without screws and without soldering any part, it doesn’t need glue or similar and it’s really cheap to build. Another main point of SMARS is the modular design. You can mount different sensors and tools and design your own parts. In future I’ll add new modules or DLC to improve the model but It would be nice if you could share your mods too.

If you want to produce and sell physical copies of the model, please have a look at the commercial licenses:

20pcs (for workshops, summer schools, ecc)
100pcs (for shops and others)

Join the Facebook group!
Facebook page:
Discover the evolution of the project with the new models:
V4 lite

To build the basic model (with “chassis -SL.stl”) you just need few extra components,you can find complete kit here
or buy the following parts:
-2x mini 150RPM motors
-1x 9[V] battery
-1x 9[V] battery connector

-1x Arduino UNO

-1x Adafruit Motor Shield V1 or V2


For the screwed version ( “chassis -S.stl”) you just need two 25mm M4 screws and two self locking nuts.

The joints of the tracks are simply pieces of 1.75mm filament cutted at the right length.

To assemble the screwless version you will need a multi slip-joint gripping plier to insert the “slave wheels”.

One of the next DLC will be the Quadpod mod. if you are interessted to move from tracks to legs, use the screwed version “chassis-S.stl” (“chassis-SL” will not be compatible)!

These models fits also:
-3x AAA batteries (check on my profile for the DLC)
-1x PS3 controller 1800mAh 3.7V Li-Ion Battery (be careful and use it only if you
know what you are doing!)


P.S updated files for ultrasonic 2a and 2b, use these ones, the old ones have an error and you can have some troubles during printing

3D printing settings

infill 20%
layers 0.2mm
supports touching building plate only in file "chassis_SL"

3D printer file information

  • Design number: 17335
  • 3D design format: STL and ZIP Folder details Close
      • Wiring-and-Programming-SMARS-V1-Etsy-Version.pdf
    • combo sensor
    • doc
    • ultrasonic_2a V2.stl
    • ultrasonic_2b V2.stl

    Learn more about the formats

  • Last update: 2021-12-29 at 14:18
  • Publication date: 2017-11-22 at 11:53


CC BY-NC-SA - Attribution - Non commercial - Share alike


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