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From the business, for the world: News about Rollyu

What's happening in the CNC industry and Rollyu? What trends and innovations shouldn’t be missed? Learn more and check out rollyu's news.

First article inspection using CMM probe

First Article Inspection: FAI Report and Buyer Checklist

A buyer-focused checklist for reviewing FAI reports, CNC inspection results, traceability records, and production release risks.
Secondary CNC machining of a die cast part

Casting Shrinkage: Causes, Defects, and How to Reduce Part Risk

Casting shrinkage can create hidden voids, sink marks, and machining risk. This guide shows the DFM checks that help keep cast parts usable.
3D CAD model and 2D drawing for prototype quoting

Rapid Prototyping Cost: A Guide for CNC, 3D Printing, and Vacuum Casting

Rapid prototyping cost depends on process choice, material, geometry, tolerance, finish, quantity, and inspection needs. This guide helps buyers compare CNC machining, 3D printing, vacuum casting, and sheet metal quotes based on real test goals, not unit price alone.
Precision inspection of machined 9310 steel component

9310 Alloy Steel Machining: Carburizing and Applications

  Many aerospace and power transmission components depend on carburized gear steels to handle repeated contact loads. Among them, 9310 alloy steel is a common choice for gears, pinions, and gear shafts. This guide explains 9310 steel machining, heat treatment, and typical applications.   What Is 9310 Alloy Steel  
CNC prototype machining with coolant and metal chips

CNC Prototype Machining: A Guide for Functional Parts

This guide helps buyers understand when CNC prototype machining is the right choice, how it compares with 3D printing, and which details affect fit, function, cost, and quote accuracy.
Quality control technician performing dimensional inspection

Plastic Prototype Manufacturing: Processes, Materials, and When to Use Each Method

Plastic prototyping helps test part fit, function, materials, and production risks before tooling.
CNC machining aluminum prototype part

What Is Rapid Prototyping? Process, Types, and Uses

Rapid prototyping helps teams test real parts before production, compare manufacturing methods, and catch design risks early. This guide explains when to use CNC machining, 3D printing, vacuum casting, or sheet metal prototyping.
8620 alloy steel component inspection during CNC machining

8620 Alloy Steel Machining: Carburizing, Machinability and Applications

8620 alloy steel is widely used for gears, shafts, bushings, and other wear-resistant components. Its combination of a tough core and a durable surface makes it a popular choice for power transmission and mechanical systems. This article explores the material properties, machining characteristics, heat-treatment considerations, and common applications. What Is
Press fitting a steel shaft into a bushing

Press Fit Tolerance: A DFM Guide to Interference Fits for CNC Parts

A practical guide to sizing interference fits, from choosing the right fit class to machining and assembling a joint that holds without slipping or splitting.

4130 Steel Machining: CNC Processes, Challenges and Best Practices

4130 steel combines strength, weldability, and machinability, making it a common material for aerospace, motorsports, and industrial components. This guide covers CNC machining processes, tooling, challenges, and best practices for machining 4130 steel.   What Is 4130 Steel   4130 steel is a low-alloy chromium-molybdenum steel known for its combination
Rollyu Precision PTFE machining component

PTFE Machining Guide: Properties, Tolerances, and Uses

PTFE is valued for low friction, chemical resistance, and insulation, but its softness makes precision machining difficult. This article explains how tooling, support, temperature control, and realistic tolerances help produce stable PTFE CNC parts.
Interference fit diagram

Interference Fit: Types, Tolerances and Design Guide

A practical guide to interference fit types, tolerances, and design rules that keep a pressed joint from spinning loose or cracking.
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First article inspection using CMM probe

First Article Inspection: FAI Report and Buyer Checklist

A buyer-focused checklist for reviewing FAI reports, CNC inspection results, traceability records, and production release risks.
Secondary CNC machining of a die cast part

Casting Shrinkage: Causes, Defects, and How to Reduce Part Risk

Casting shrinkage can create hidden voids, sink marks, and machining risk. This guide shows the DFM checks that help keep cast parts usable.
3D CAD model and 2D drawing for prototype quoting

Rapid Prototyping Cost: A Guide for CNC, 3D Printing, and Vacuum Casting

Rapid prototyping cost depends on process choice, material, geometry, tolerance, finish, quantity, and inspection needs. This guide helps buyers compare CNC machining, 3D printing, vacuum casting, and sheet metal quotes based on real test goals, not unit price alone.
Precision inspection of machined 9310 steel component

9310 Alloy Steel Machining: Carburizing and Applications

  Many aerospace and power transmission components depend on carburized gear steels to handle repeated contact loads. Among them, 9310 alloy steel is a common choice for gears, pinions, and gear shafts. This guide explains 9310 steel machining, heat treatment, and typical applications.   What Is 9310 Alloy Steel  
CNC prototype machining with coolant and metal chips

CNC Prototype Machining: A Guide for Functional Parts

This guide helps buyers understand when CNC prototype machining is the right choice, how it compares with 3D printing, and which details affect fit, function, cost, and quote accuracy.
Quality control technician performing dimensional inspection

Plastic Prototype Manufacturing: Processes, Materials, and When to Use Each Method

Plastic prototyping helps test part fit, function, materials, and production risks before tooling.
CNC machining aluminum prototype part

What Is Rapid Prototyping? Process, Types, and Uses

Rapid prototyping helps teams test real parts before production, compare manufacturing methods, and catch design risks early. This guide explains when to use CNC machining, 3D printing, vacuum casting, or sheet metal prototyping.
8620 alloy steel component inspection during CNC machining

8620 Alloy Steel Machining: Carburizing, Machinability and Applications

8620 alloy steel is widely used for gears, shafts, bushings, and other wear-resistant components. Its combination of a tough core and a durable surface makes it a popular choice for power transmission and mechanical systems. This article explores the material properties, machining characteristics, heat-treatment considerations, and common applications. What Is
Press fitting a steel shaft into a bushing

Press Fit Tolerance: A DFM Guide to Interference Fits for CNC Parts

A practical guide to sizing interference fits, from choosing the right fit class to machining and assembling a joint that holds without slipping or splitting.

4130 Steel Machining: CNC Processes, Challenges and Best Practices

4130 steel combines strength, weldability, and machinability, making it a common material for aerospace, motorsports, and industrial components. This guide covers CNC machining processes, tooling, challenges, and best practices for machining 4130 steel.   What Is 4130 Steel   4130 steel is a low-alloy chromium-molybdenum steel known for its combination
Rollyu Precision PTFE machining component

PTFE Machining Guide: Properties, Tolerances, and Uses

PTFE is valued for low friction, chemical resistance, and insulation, but its softness makes precision machining difficult. This article explains how tooling, support, temperature control, and realistic tolerances help produce stable PTFE CNC parts.
Interference fit diagram

Interference Fit: Types, Tolerances and Design Guide

A practical guide to interference fit types, tolerances, and design rules that keep a pressed joint from spinning loose or cracking.
Load More

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