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JRProto – Your Trusted Rapid Prototyping & Low-Volume Manufacturing Partner
SLA SLS SLM FDM FGF 3d Printing | CNC machining | injection molding
vacuum casting | sheet metal fabrication
www.jrproto.com
[email protected]
+86 18681062070

05/11/2026

SLM Metal 3D Printing vs CNC Machining: Which Process Is Better?
Should you choose SLM metal 3D printing or CNC machining?

The answer depends on part geometry, material requirements, tolerances and production quantity.

SLM metal printing may be suitable for:

• Complex geometries
• Integrated structural features
• Selected lightweight designs
• Parts difficult to machine conventionally

CNC machining may be suitable for:

• Precision holes and threads
• Accessible geometries
• Tight dimensional requirements
• Components manufactured from solid stock

For certain engineering parts, combining SLM and CNC machining is a practical approach.

Jingrui Proto provides both technologies, including metal 3D printing in 316L, AlSi10Mg and Ti6Al4V.

Our engineering team can review your design and recommend a suitable manufacturing process.

04/11/2026

Everyone talks about the cost of a steel mold. Nobody talks about the cost of waiting.

Eight weeks of waiting. Eight weeks of paying engineers to sit idle. Eight weeks of competitors shipping.

Silicone vacuum casting eliminates the waiting.

✅ Molds in days
✅ Parts in days
✅ Iterations in days

The mold is cheaper. But the time savings are what really pay for themselves.

In this video:

The real cost of waiting for steel molds

How fast turnaround changes development timelines

Why speed is the ultimate advantage

Watch the video 👇

03/11/2026

Is Vacuum Casting Suitable for High-Detail Product Housings?
Can vacuum casting produce detailed product housings?

Yes, vacuum casting can reproduce many detailed geometries when the master pattern and silicone mold are properly designed.

However, several factors affect the final result:

• Master pattern surface quality
• Silicone mold design
• Thin-wall geometry
• Undercuts and demolding
• Resin selection
• Air evacuation and casting conditions
• Finishing requirements

For cosmetic enclosures, the master pattern is especially important because its surface quality influences the cast parts.

Jingrui Proto supports SLA/CNC master patterns, silicone mold making, polyurethane casting and suitable finishing.

Send your STEP file, dimensions, quantity and appearance requirements for a technical assessment.

02/11/2026

What Determines the Cost of Plastic Injection Molding?
Why do plastic injection molding quotations vary so much between manufacturers?

Several factors influence the total project cost.

1. Mold complexity

Undercuts, sliders, lifters and complex parting lines can increase tooling requirements.

2. Mold material

Steel selection should match the required mold life and production conditions.

3. Number of cavities

Multi-cavity tooling can improve production efficiency but may require higher initial investment.

4. Plastic material

Different resin grades have different material costs and processing requirements.

5. Surface finish

Texture, polishing and cosmetic specifications affect tooling preparation.

6. Production quantity

The expected quantity helps determine the most economical tooling and manufacturing strategy.

Jingrui Proto supports custom injection molding and other manufacturing processes for product development and suitable production projects.

To receive a meaningful quotation, provide your CAD files, material specification, target quantity and surface requirements.

31/10/2026

Vacuum Casting vs. Injection Molding: Which Costs Less for 50 Parts?
Need approximately 50 plastic parts?

Should you choose vacuum casting or injection molding?

Vacuum casting may be suitable when:
• Production quantity is relatively small.
• Cosmetic prototypes are needed.
• Product design changes are still possible.
• Conventional injection mold tooling is not yet economical.

Injection molding may be preferable when:
• Production quantities are much higher.
• Specific production thermoplastics are required.
• Long-term repeat production is planned.

The most economical process depends on the geometry, material, mold complexity and finishing requirements.

Jingrui Proto offers both vacuum casting and injection molding services.

Send your CAD files and target quantity. Our team can review the project and recommend a suitable manufacturing process.

30/10/2026

Why Are Transparent 3D Printed Parts Sometimes Cloudy?
Why doesn't every transparent 3D printed part look crystal clear?

Because the final appearance depends on several factors:
1. Resin selection
2. Part geometry and wall thickness
3. Surface roughness
4. Sanding and polishing
5. Final finishing
Transparent SLA printing can produce useful clear prototypes, but optical-grade clarity should never be assumed without specific validation.

Jingrui Proto supports transparent SLA printing and finishing assessments for product development projects.

Send us your design and transparency requirements!

30/10/2026

What Should You Check Before Ordering Full-Color 3D Printed Figurines?

If you need realistic colorful models, ask your supplier these five questions:
1. Can the process reproduce the colors and textures required for your model?
2. Is 3D modeling needed if you only have photographs?
3. How will fine details and thin features be handled?
4. What cleaning and finishing are included?
5. How will the finished parts be inspected?
Jingrui Proto provides full-color 3D printing using Mimaki 3DUJ-553 and Stratasys J55 equipment.

We support customized models, figurines and product visualization projects. Single-piece enquiries can be considered.

Send us your design, quantity and target dimensions to discuss the best production route.

29/10/2026

How to Order Reliable MJF Nylon Parts

Before placing an MJF order, define what the part must do—not just how it should look.

Start with the material. Confirm that the selected nylon grade is suitable for the intended load, temperature and environment.

Review the geometry. Check wall thickness, snap-fit design, holes and mating interfaces.

Specify finishing. Natural nylon, black dyeing and smoothing can produce different appearances and may affect critical features.

Agree on inspection. Identify the dimensions that must be checked and the documentation required.

Confirm delivery requirements. State quantity, packaging and destination before comparing final quotations.

Jingrui Proto offers MJF PA12 and SLS nylon printing for suitable functional prototypes and low-volume manufacturing projects.

Share your design and specifications to start a technical review.

29/10/2026

Your first design won't be your best.

Your fourth one might be.

Silicone vacuum casting makes iteration cheap.

✅ New mold in days
✅ No steel tooling to scrap
✅ 10–50 parts per batch

Iterate more. Win more.

Follow for more 🚀

29/10/2026

Looking for a 3D Printed Shoe Supplier with a Low Minimum Order Quantity?

Many new footwear brands want to test designs before investing in large quantities.

Jingrui Proto offers a flexible starting point for suitable 3D printed footwear projects.

Our ordering options:
Standard JR Series shoes: starting from 1 pair.
Company logo customization: starting from 10 pairs.
Color and size requests: reviewed based on available options.
New footwear designs: engineering assessment and sample development.

Wholesale and OEM/ODM cooperation: available for suitable projects.
Our 450 Pro DLP equipment is used in our footwear production workflow, supporting distinctive lattice geometries and custom footwear development.

For brands and retailers, we recommend starting with a sample to evaluate fit, appearance and material suitability before approving a commercial order.

Shipping charges are calculated separately based on destination and shipping method.

To request a quotation, send your selected model, size breakdown, color preference, quantity and logo requirements.
Visit: https://jrproto.com/service/3d-printed-footwear/

Address

沙田镇
D**gguan
523900

Website

http://www.jrproto.com/

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