RS03 (1/10 M-Size RWD Chassis )

RS03 is a 1/10 scale M-chassis RWD RC car designed for 3D printing. It is designed personal enjoyment, and the entire assembly is highly detailed and robust.

⚠ IMPORTANT NOTICE

Please download and read 00_ASSEMBLE_MANUAL.pdf first! It contains step-by-step assembly instructions with 3D CAD illustrations, as well as

the detailed parts list.

🖨 Recommended Print Settings

Filament:

• ABS is highly recommended for general parts.

  • For gears and suspension/drivetrain parts, PETG-CF (Carbon Fiber PETG) is strongly recommended for worry-free durability.

•  Infill: 80% (for maximum durability)

• Wall Line Count: 2 Walls (I printed all my parts with 2 walls and it works perfectly!

• Supports Required depending on the parts. Please set supports appropriately in your slicer.

🔩 BOM (Required Hardware)

To assemble the RS03, you will need the following hardware (screws, bearings, shafts, etc.):

Screws & Nuts

• M3 Countersunk Screw (30mm) x 11

• M3 Countersunk Screw (20mm) x 4

• M3 Countersunk Screw (12mm) x 2

• M3 Countersunk Screw (8mm) x 6

• M3 Hex Socket Screw (10mm) x 25

• M3 Hex Socket Screw (12mm) x 2

• M3 Roundhead Screw (30mm) x 2

• M2 Countersunk Screw (4mm) x 3

• M2 Roundhead Screw (20mm) x 4

• M2 Roundhead Screw (15mm) x 7

• M2 Roundhead Screw (12mm) x 7

• M2 Roundhead Screw (5mm) x 2

• M3 Nut x 39

• M2 Nut x 23

Bearings & Pipes & Shafts & Springs

• Bearing

  • ID:2mm, OD:5mm, W:2.5mm x 8

  • ID:8mm, OD:12mm, W:3.5mm x 10

  • ID:3mm, OD:7mm, W:3mm x 8

• Pipe

  • ID:2mm, OD:3mm, L:10mm x 2

  • ID:2mm, OD:3mm, L:12mm x 2

  • ID:2mm, OD:3mm, L:6mm x 2

• Shaft

  • Diameter: 2mm, Length: 8.5mm x 3

  • Diameter: 2mm, Length: 13mm x 1

  • Diameter: 2mm, Length: 28mm x 1

  • Diameter: 2mm, Length: 16mm x 1

• Spring

  • Wire Dia: 0.3mm, OD: 3mm, L: 5mm x 2

🏎 Recommended Off-the-shelf Parts

We recommend using the following RC hobby products for completion:

• Damper

  • TAMIYA OP.155 LOW FRICTION ALUMINUM DAMPER SET

• Tires : 

  • TAMIYA SP.683 M-CHASSIS 60D RADIAL TIRES

  • TAMIYA SP.1427 60D RALLY BLOCK TIRE

• Motor: 

  • TAMIYA OP.1393 TYPE 380 Sport Tuned Motor

• Pinion Gear :

  • 0.8Module 12T

    • https://rc.kyosho.com/en/cl017.html

• Turnbuckles & Adjusters:

  • TAMIYA OP.892 3x10mm ALUMINUM TURNBUCKLE SHAFT

  • TAMIYA OP.1247 3x18mm ALUMINUM TURNBUCKLE SHAFT

  • TAMIYA OP.1248 3x23mm ALUMINUM TURNBUCKLE SHAFT

  • [TAMIYA OP.979 5x8mm HARD HEX HEAD BALL HEAD CONNECTOR

  • TAMIYA OP.1868 OPEN FACE 5mm REINFORCED ADJUSTERS

  • TAMIYA OP.1869 OPEN FACE 5mm REINFORCED ADJUSTERS

💡 Optional Upgrade Available!

You can now upgrade the suspension arms to use ball bearings for smoother operation. Check out the RS03 Suspension Arm Bearing Support Upgrade.

🎨 License & Credit

This model and the manual are licensed under CC BY-NC-SA 4.0 (Attribution-NonCommercial-ShareAlike).

• You are free to share, remix, and modify this project for non-commercial purposes.

  • Please attribute original design to gm2bv.

• Designed by: gm2bv

• Contact & Feedback (X/Twitter): @gm2bv

If you build this, please tag or mention me on X! I'd love to see your builds!

Also available on Thingiverse