Turn concepts into precision-engineered products with RapidDirect’s end-to-end expertise.

De-risk production with rigorous prototyping, testing, and manufacturability validation.

Seamlessly scale validated prototypes into high-volume production with optimized processes and materials.

Deliver your product safely and efficiently with professional, market-ready packaging solutions.

Choose the ideal NPI package—from feasibility to mass production—to accelerate your go-to-market strategy.

Blog

Gain valuable insights into manufacturing processes.

News

Company news, platform updates, holiday announcement.

eBooks

Improve manufacturing know-how with our eBooks collection.

Case Studies

Learn successful stories to inspire your project.

Surface Finishes

Select from 30+ surface finishing options.

Materials

Choose from 50+ metals and plastics for your project.

CNC Machining eBook

If you want to produce high-quality machined parts with a sleek appearance, it’s essential to consider some critical factors related to CNC machining. 

 

Here, we’ve gathered some basic information and important considerations to help you achieve the desired results.

About RapidDirect

Our vision, mission, development history, and dedicated team.

Testimonials

Read what our customers say about their experience.

Quality Assurance

Discover how we ensure precision and quality in manufacturing

rapiddirect-office-1

Online Platform

Get Instant quotes with our smart online platform.

Teamspace

Updated teamspace feature with membership rewards.

RapidDirect upgraded teamspace

Contact us for your manufacturing needs.

From Prototype to Mass Production — Seamlessly banner

Case Study: RapidDirect Powers Arco Aria’s Tether Car Success

Arco Aria tether car

Project Brief

IndustryAutomotive
MaterialsAluminum, PEEK
Surface FinishAs Machined
TechnologyCNC Machining
Final ResultCNC machined parts for the crankshaft and intake systems

Introduction

Arco Aria, a seasoned tether car enthusiast, turned to RapidDirect to help with custom machining for his high-performance tether car engines. Arco needed precision-engineered parts for his modified nitro engines, but as a hobbyist with a tight budget, he also sought affordable, small-batch manufacturing solutions. RapidDirect’s online platform and expert support made it the perfect partner for his project.

Arco Aria tether car for racing

What's Tether Car?

Tether car racing is a high-speed motorsport where small, custom-built model cars are tethered to a central point. These cars are powered by RC combustion nitro engines and require constant modifications for better performance. Due to the complexity and precision required, many enthusiasts like Arco seek specialized machining services to create custom parts that meet tight tolerance specifications.

How RapidDirect Helps Acro Aria

Arco needed help with CNC machining parts for his tether car modifications, particularly the crankshaft and intake systems. With RapidDirect, he found a reliable partner who could deliver high-quality, precision parts in small quantities, which was critical for his low-budget but high-performance builds.

Arco used RapidDirect’s easy-to-navigate online quoting platform to get instant quotes and DFM analysis. The ability to track orders and receive updates from his project manager, Olivia, made the entire process fast and transparent. Arco was able to get the custom parts he needed—like custom steel bearing housings—without compromising on quality or speed.

Acro Aria
An Enthusiast of Tether Car

I’ve been in tether car racing for 10 years, and RapidDirect has been great for my engine mods. Their platform is simple to use, quotes are quick, and turnaround times are fast. The parts came out exactly as needed, and Olivia kept me updated through the whole process. H

Outstanding Results

Thanks to RapidDirect, Arco successfully modified his tether car’s engine, including turning the crankshaft and designing a new intake system for improved efficiency. The parts met his tight tolerance requirements, and the quick turnaround time ensured his projects were ready on schedule.

The cost-effective, small-batch manufacturing allowed Arco to stay within his budget while achieving high-quality results. As a result, he’s set for the 2025 tether car season, with plans to show off his car at the European Championship in Lithuania.

RapidDirect’s ability to handle specialized, low-volume CNC machining with precision and speed made a big difference in Arco’s racing prep.

cnc machined parts for tether car rapiddirect

More success
stories

wide

RapidDirect CNC Machined Custom Precision Mount for the M-73 Prismatic Compass

RapidDirect helped Lin CNC machine a custom precision mount for the M-73 prismatic compass with fast turnaround and high accuracy....
Read More
rd neck massager product

Neck Massager Project: From Concept to Mass Production

A case study on how RapidDirect helped bring a wellness product to market through integrated design, prototyping, and production services....
Read More
UIUC robotics

RapidDirect x UIUC iRobotics Team: Build a Combat Robotic

Project Brief IndustryRoboticMaterialsAluminum, SteelPost-processingAs Machined, Heat TreatmentTechnologyCNC MachiningFinal ResultCNC machined motor mount, weapon, weapon pulley Introduction For the University of...
Read More
Try RapidDirect
now, for free
Book a meeting with RapidDirect
Note: Our working hours are 10:00-12:00, 14:00-18:30, and 20:00-23:00. We will confirm the time and meeting method with you via email.
Click or drag files to this area to upload. You can upload up to 50 files.