We print smooth, high-detail resin parts with a UV laser, layer by layer. As a China SLA 3D printing manufacturer and supplier, our factory holds layers down to 0.05 mm and copies fine features that other processes miss. Upload your CAD file and get a factory-direct quote with free DFM feedback within 24 hours.
The Problem We Solve
These are the problems buyers tell us about every week. Here is how we take each one off your desk.
Visible layer lines make a prototype look cheap in front of your client. SLA gives a smooth surface that looks close to a molded part.
Small text, thin ribs, and tiny snaps vanish on low-end printers. Our lasers hold features down to 0.07 mm.
Bad supports and no post-cure leave parts weak and bent. We control orientation, supports, and UV curing for stable parts.
Clear parts that turn cloudy, or soft parts that snap. We match the resin to your job so it looks and acts right.
Waiting days for a price kills your timeline. Send your files and get a clear, itemized quote within 24 hours.
Your design is your business. We treat every file as confidential, sign NDAs on request, and never share your data.
Our Solution
From your CAD file to a smooth, checked part — all under one roof.
With YiguProto as your China manufacturer and supplier, you get one team that owns the whole job. No hand-offs, no blame games, no hidden costs.
Overview
A precise way to turn a 3D model into a smooth resin part — no tooling needed.
A tank holds liquid resin that hardens under UV light. A laser draws the shape of the first layer, and the resin turns solid. The build platform moves down a tiny step, and the laser draws the next layer. This repeats until the part is done.
Then we clean off the wet resin, cut away the supports, and bake the part in a UV oven. That final cure gives the resin its full strength and keeps the size stable.
Capabilities
Real numbers so you can spec your part with confidence.
| Feature | Capability |
|---|---|
| Process | Stereolithography (SLA) — UV laser + photopolymer resin |
| Standard accuracy | ±0.2% (lower limit ±0.2 mm) |
| Tolerance (X / Y) | ±0.1 mm + ±0.001 mm per mm |
| Tolerance (Z) | ±0.13 mm + ±0.001 mm per mm |
| Layer thickness | 0.1 mm standard · 0.05 mm · 0.025 mm fine |
| Minimum feature | 0.25 mm (XY) · 0.07 mm micro resolution |
| Minimum wall | 0.8 mm |
| Max part size | 736 × 635 × 533 mm |
| Materials | 30+ photopolymer resins |
| Lead time | 1 – 5 business days |
What We Deliver
Everything you need from one China factory — no extra vendors to manage.
We check your model for holes and thin walls, then fix small mesh errors for free.
We angle the part and place supports to protect key surfaces and reduce marks.
Industrial lasers print your parts with layers from 0.1 mm down to 0.025 mm.
We wash off wet resin and remove supports by hand, with care around details.
Parts are cured in a UV oven for full strength, stable size, and a dry surface.
We sand and polish to your finish, from a soft matte to a glass-like gloss.
Color matching, clear coating, and soft-touch paint for a finished look.
Inserts, gluing, and small builds so parts arrive ready to use.
Not sure which resolution fits your part? Talk to an engineer for a free review.
Precision Options
Finer layers mean smoother parts and finer detail. We help you balance quality and cost.
Our standard mode. Good detail and a smooth surface at the best price. Ideal for most prototypes and larger parts.
Finer layers for a smoother surface and crisper features. The go-to choice for cosmetic and snap-fit parts.
Our finest mode for very small parts. Holds features down to 0.07 mm for tiny parts and micro features.
Materials
From tough plastic-like parts to crystal-clear lenses — pick the resin that fits your job.
A durable, all-purpose resin that feels like molded ABS. The top pick for functional prototypes and large parts.
Strong and stiff with high heat resistance. Good for under-hood parts and hot environments.
Near-colorless parts that polish to high clarity. Great for lenses, light pipes, and flow models.
Tough grades for snap-fits and impact parts, plus flexible grades for rubber-like parts.
Need a special color, hardness, or flame rating? Ask our engineers — we source it.
Surface Finishes
Pick a look and we copy it — from raw print to high gloss.
Straight off the printer with support marks on the underside. Fastest and lowest cost.
Supported faces are sanded smooth to remove the support nibs. A clean, everyday finish.
Sanded and finely blasted for a smooth, even look. Layer lines are much less visible.
Sanded and polished to a shine. Perfect for display parts and premium enclosures.
Color-matched paint with a smooth, even coat. We can add logos and masking.
A rubbery, grippy feel or a clear gloss coat. Great for handles, wearables, and lenses.
Quality Control
Good parts are made, not sorted. Here is how we keep quality steady.
We check your model for errors and thin walls before printing starts.
The first part is measured and compared to your drawing and key features.
We watch laser power, layer height, and resin condition on every build.
Critical dimensions are measured and recorded for your records.
Each part is checked for layer marks, warping, and surface flaws.
Photos and reports go to you before the box leaves the factory.
Industries
Our China factory prints parts for teams in many fields.
Anatomical models, surgical guides, and clear device parts.
Housings, buttons, light pipes, and clear covers.
Interior trims, lenses, grilles, and under-hood prototypes.
Packaging models, bottles, handles, and branded parts.
Master patterns for investment casting and silicone molds.
Detailed scale models, display pieces, and visual aids.
How It Works
Send STEP, IGES, or STL files. We keep it private.
Free DFM review and a clear, itemized price.
We orient the part and add supports for a clean print.
Your part is built layer by layer with a UV laser.
We remove supports and UV cure for full strength.
Worldwide shipping with tracking and reports.
Design Tips
Small changes in your CAD cut cost and improve quality. We check all of these for free.
Where supports touch leaves small marks. Tell us which faces must stay perfect and we plan around them.
Walls thinner than 0.8 mm can warp or break. Thicker is safer for large flat areas.
Hollow parts need holes so wet resin can escape. We help place them in hidden spots.
Large flat faces can curl. Adding a slight curve or ribs keeps the part straight.
Sharp inner corners trap stress. A small fillet makes the part stronger and easier to print.
Resin shrinks a little as it cures. We scale the model to keep key dimensions on target.
Send your file and we will return a free DFM report with clear, plain-English advice.
Why YiguProto
A partner who answers fast, quotes clearly, and ships on time.
You buy from the maker, not a trader. That keeps your cost low and your margins healthy.
Most quotes come back in hours, never more than 24 hours, with free DFM feedback.
No tooling and no strict MOQ. We print one part or a full run from the same process.
You get clear advice, not jargon. We explain trade-offs so you can decide with confidence.
Reports and photos before shipping mean no surprises when the box arrives.
CNC, 3D printing, molding, and casting under one roof. Scale up without changing suppliers.
Trusted Worldwide
"We needed smooth, show-ready models for a trade show in one week. YiguProto printed them in high resolution and the finish looked like real molded plastic. Our client signed off on the spot."
"The clear parts they made for our light pipes were crisp and bubble-free. Communication was fast, and the DFM notes caught a wall that was too thin before we wasted any money."
"Tight detail, stable parts, and steady quality across every batch. We use them for medical models and have never had a bad run."
FAQ