Motor Slave Roller Plate

A roller plate designed for the slot preparer's workshop

The SRP018220 Motor Slave Roller Plate by 3DSRP is a piece manufactured using 3D printing with FDM technology, specifically designed to allow for free-spinning motor break-in. Breaking in a motor before mounting it on the chassis is a common practice among meticulous preparers: it helps to seat the internal components, reduce initial friction, and verify the motor's behaviour before any other variables of the car come into play.

Function and performance

This plate acts as a slave support, meaning it holds the motor independently of the car chassis, allowing it to spin freely without additional mechanical load. This free-spinning break-in process is useful for:

• Seating the bearings and rotor in their optimal position.
• Detecting potential vibrations or irregularities before final assembly.
• Prolonging the motor's lifespan with a progressive start.

Compatibility

The plate is compatible with short-can motors from the following brands:

• Slot.it
• NINCO
• SCA
• SCX — motors from the RK series

If you regularly work with motors from any of these brands, this plate fits directly into your preparation workflow, without the need for adapters or additional modifications.

3D manufacturing with FDM

The piece is produced using FDM (Fused Deposition Modeling) technology, one of the most widespread 3D printing techniques in the slot and modelling world due to its good balance of mechanical strength, dimensional accuracy, and material versatility. Although it is not an injection-moulded plastic part, it perfectly fulfills its function in the preparer's workbench.

Assembly and preparation

The use is straightforward: place the motor on the plate, connect it to the power supply, and let it run at low voltage for as long as the preparer deems appropriate. It does not require special tools or advanced electronics knowledge. It is a discreet but very useful addition to any slot workshop focused on competition or fine-tuning.

Ideal for…

• Slot preparers working with short-can motors from Slot.it, NINCO, SCA, or SCX (RK series).
• Club competitors who want to maximise their motors' performance from the very first moment.
• Enthusiasts looking to incorporate good maintenance and preparation practices into their routine.

Frequently asked questions

What exactly is the purpose of breaking in a motor without load?

Breaking in the motor without load allows the internal components — rotor, bearings, coils — to progressively seat. It reduces initial friction and can improve the uniformity of rotation from the first laps on the track.

Is it compatible with all Slot.it motors?

The plate is compatible with short-can motors from Slot.it. If you have doubts about whether your motor fits, check the dimensions of the can before ordering.

Are SCX RK motors short-can?

Yes, SCX RK series motors have a short-can format and are compatible with this plate according to the manufacturer's information.

Do I need any special power supply to use this plate?

No. Any standard adjustable power supply commonly found in slot workshops is sufficient. It is recommended to start at low voltage and gradually increase during the break-in process.

Does FDM 3D printing affect the durability of the piece?

For the use it is given — holding the motor during break-in on the workbench — the strength of an FDM piece is more than sufficient. It is not subjected to the mechanical stresses of a piece on the track.

The SRP018220 Motor Slave Roller Plate by 3DSRP is a 3D-printed FDM tool designed for free-spinning motor break-in, compatible with short-can motors from Slot.it, NINCO, SCA, and SCX RK series. An essential bench tool for slot car builders and racers looking to optimize motor performance before installation.