Formula Wheel - Fanatec CSL Universal Hub V2

I've designed this “formula inspired” race wheel to fit the larger (70mm diameter) screw pattern on the Fanatec CSL Universal Hub V2, while wrapping around the buttons to provide a comfortable, but customizable steering experience.

Neat Features:

• Small steering diameter (274mm)
• Orienting pinky-rests on wheel-back
• Rigid uni-body design
• Single (PLA+) or multi-material (PLA+ and TPU) options
• Just like how new shoes made you run faster as a kid, this wheel promises speedy lap-times (JK)

Important Considerations:

• Because of its size, the wheel must be printed on a larger print bed (I used a dual-extruder Prusa XL). It will not fit on a Prusa Mk4.
• If you have a multi-material printer you may consider using TPU to coat the grip-points, while keeping the core of the wheel constructed with rigid PLA/PET-G.
  • Aside giving the wheel a nice colour-contrast, this adds a little more grip to the wheel surface - but (as I've configured it), it doesn't do much to soften the wheel contact points.
  • In the images provided the black material is PLA+, while the purple and blue accents on some of the wheels are TPU.
  • I have provided PrusaSlicer files for both a single-material (PLA+) wheel, as well as a multi-material (PLA+ and TPU) wheel.

Key Dimensions:

• Wheel outer diameter = 274mm
• Wheel grip width = 22mm
• Wheel grip depth = 29mm
• Faceplate mount thickness = 8mm

Print Recommendations:
Orientation:

• Print the wheel with the front face (that would face the driver when steering) flat on the build plate
  • The pattern seen on this face in the images was transferred from the black diamond textured PEI coated build-plate that I use (ordered from AliExpress: https://www.aliexpress.com/item/1005007090360831.html?spm=a2g0o.order_list.order_list_main.41.47351802VWEGXJ).
• No support material should be needed for this print; however, I did print with brim to ensure the face remained in contact with the build plate throughout the print - use a deburring tool to remove brim and smooth touch-points after.

Single Material Wheel:

• PrusaXL with 0.6mm nozzle diameter
• Material: PLA+
• 5 solid layers on top & bottom layers
• 4 perimeters
• 30% 3D honeycomb infill
• 5mm brim (just in case)
• Print Time = 8 hours, 42 minutes
• PLA+: 362g

Multi-Material Wheel:

• Dual-extruder PrusaXL with 0.6mm nozzle diameter
• Materials: PLA+ and TPU (95A)
• 7 solid top, 5 solid bottom layers
• 3 perimeters
• 30% 3D honeycomb
• 5mm brim
• Paint all sides except the top and back face (touching hub) to be TPU with 1.8mm maximum segment width (essentially forcing 3 perimeters be traced with the TPU filament)
• Print Time = 13 hours
• PLA+: 302g | TPU: 101g

WARNING: Attempt this project at your own risk. I accept no responsibility for any issues/damages resulting from attempting this project or using the products that result from it.

Otherwise, enjoy!  If you do end up making one or modifying it, please share pictures and details so others can see/enjoy it.