3DSRP-090/R Rally chassis vrs 80 mm

The 3DSRP-090/R brings the precision of 3D printing to the anglewinder chassis in rally slot competition

When regulations, terrain, and twisty stages demand a reliable base, the 3DSRP-090/R Rally Chassis VRS 80 mm from 3DSRP steps in with solid arguments. Specifically designed for the 1/32 rally slot category in anglewinder configuration, this chassis combines the versatility of digital design with the real demands of the track.

Function and performance

The 3DSRP-090/R is produced using FDM 3D printing in ASA plastic, a material that stands out in the slot chassis world for its good balance of controlled flexibility, impact resistance, and durability against repeated mechanical stress. With a length of 80 mm, it offers a compact and well-proportioned base for 1/32 scale rally bodies.

One of its most valued features in competition is the pivoting guide arm integrated into the design. This solution allows the guide to maintain constant contact with the rail even when the body works over crests, bumps, or uneven surfaces typical of rally slot. The result is a more stable electrical transmission and more predictable steering during critical moments of the stage.

Compatibility and assembly

This chassis belongs to the range of 1/32 spare parts for anglewinder configuration, which directs it towards assemblies where the motor operates at an angle to the rear axle, favouring a lower centre of gravity and better mass distribution. Its manufacturing through 3D printing allows for tight tolerances and reproducibility between units, a fundamental aspect when preparing multiple cars under the same regulations.

Before assembly, it is advisable to check the flatness of the chassis and adjust the guide height according to the track and the body used. The nature of ASA plastic facilitates small geometry corrections with controlled heat, a common practice among more experienced preparers.

Ideal for…

• Club drivers competing in 1/32 rally slot categories with anglewinder regulations.
• Preparers looking for a lightweight and reproducible base for tuning.
• Enthusiasts wanting to explore building cars from scratch with a quality chassis.

Aspects to consider

Since this is an anglewinder chassis, check before purchasing that your motor, pinion, and crown gear configuration is compatible with this system. The length of 80 mm should also be verified against the intended body to ensure a proper fit without excessive modifications.

Frequently asked questions

What is the difference between an anglewinder chassis and a sidewinder?

In an anglewinder chassis, the motor is positioned at an angle to the rear axle, while in a sidewinder, the motor is parallel (transverse) to that axle. The anglewinder allows for a lower centre of gravity and is often preferred in competition for its dynamic behaviour.

Is ASA plastic suitable for intensive competition use?

Yes. ASA is a material with good impact and mechanical fatigue resistance, making it suitable for regular competition sessions. Additionally, its controlled flexibility helps absorb track irregularities without losing structural rigidity at key points of the chassis.

What advantage does the pivoting guide arm provide?

It allows the guide to adapt independently to rail variations, maintaining constant electrical contact. On circuits with elevation changes or in rally stages with uneven surfaces, this translates to fewer disconnections and smoother driving.

Can I adjust the chassis geometry once assembled?

ASA plastic allows for small geometry corrections using controlled heat, a common technique in 3D chassis preparation. However, for significant structural changes, it is preferable to start with a new unit.

Is this chassis compatible with any 1/32 rally body?

Compatibility depends on the wheelbase (80 mm) and the mounting points of the chosen body. We recommend verifying these measurements with the specific body before assembly.

The 3DSRP-090/R is an 80 mm anglewinder rally chassis for 1/32 slot car competition, manufactured by 3DSRP using FDM 3D printing in flexible ASA plastic. Its pivoting guide arm ensures constant electrical contact on uneven track surfaces, making it a reliable choice for rally slot competitors seeking a lightweight, precise and consistent base for club-level racing.