Body Adjustment Washers. Pack of 20 units. (0.4-0.6-0.8 and 1mm. (5 units of each))

Fine Body Adjustment with 3DSRP Washers: Four Thicknesses in One Pack

When detail makes the difference between a car that scrapes and one that flies, having the exact thickness washers on hand becomes essential. This pack of 20 body adjustment washers from 3DSRP includes four sizes —0.4, 0.6, 0.8, and 1 mm— with 5 units of each, allowing you to work with precision without needing to order individual sizes every time you change your setup.

Function and Performance

The adjustment washers allow you to control the vertical play between the body and the chassis: too much play and the body sways; too tight and it may scrape in corners or during launch. With these four increments available, the adjustment process becomes systematic and repeatable, both on club preparation benches and at home.

The material used is polypropylene (PP), a thermoplastic known for its remarkable flexibility and resistance to fatigue from repeated bending. In adjustment washers, this translates to parts that absorb vibrations without permanently deforming, maintain their dimensions over time, and do not damage the body surfaces they contact.

Manufacturing: FDM 3D Printing in PP

3DSRP produces these parts using Fused Deposition Modelling (FDM) 3D printing, which allows for consistent geometries at a reasonable cost and, above all, facilitates the manufacturing of functional parts in technical materials like polypropylene, which are not always easy to process using conventional methods. The result is lightweight, dimensionally stable washers specifically designed for slot car preparation.

Pack Contents

• 5 units of 0.4 mm
• 5 units of 0.6 mm
• 5 units of 0.8 mm
• 5 units of 1 mm
• Total: 20 washers

Assembly and Preparation

The adjustment process with these washers is straightforward: they are placed between the body and the chassis mounting points to increase the separation in a controlled manner. Combine different thicknesses to achieve the exact dimension your setup requires. With several increments available, you can go from 0.4 mm to 1 mm in single steps, giving you a very fine adjustment margin without the need to sand or modify parts.

They are particularly useful when debuting a new body, after a crash that has altered the chassis geometry, or when switching to a chassis of different height. They are also a good diagnostic tool: if the scraping issue disappears with a 0.4 mm washer, you know exactly how much margin you needed.

Ideal for…

• Club preparers seeking repeatability in adjustments.
• Enthusiasts who frequently mount and dismount bodies.
• Competitors needing to adjust body height between sessions.
• Workshops and preparation benches wanting to have exact measurements on hand at all times.

Frequently Asked Questions

What type of cars are these washers compatible with?

They are compatible with any slot car where the body play can be adjusted using washers or spacers at the mounting points. Specific compatibility depends on the anchoring system of each model, so it is advisable to check the hole measurements before use.

Does polypropylene withstand the heat generated during races well?

Polypropylene has a continuous service temperature that comfortably exceeds the usual conditions of a slot car on track. It does not present issues from normal heat during use.

Can multiple washers be combined to achieve an intermediate thickness?

Yes. Stacking two or more washers achieves intermediate dimensions with great precision, provided the mounting point has enough travel to accommodate them.

How many times can they be reused?

Thanks to the characteristic flexibility of PP, these washers withstand repeated cycles of mounting and dismounting without deforming. There is no established limit from the manufacturer, but their performance in normal use is very durable.

Are they available in other thicknesses outside of those included in this pack?

This pack includes the four most common thicknesses for slot car preparation. For other sizes, consult the complete 3DSRP catalogue available in the store.

3DSRP body shim washers pack — 20-piece set including four thicknesses (0.4, 0.6, 0.8 and 1 mm, 5 of each) for precise slot car body gap adjustment. Made from flexible polypropylene (PP) via FDM 3D printing, these shims are lightweight, dimensionally stable and ideal for club racers and home builders looking for repeatable body height tuning on any slot car chassis.