Standard Resin White
A listed standard resin option for general DLP models and visual parts.
AIHFABS Digital Light Processing
DLP 3D Printing Service for Crisp, Detailed Small Parts
When comparing 3d printing service companies, look closely at the process, tolerance, materials, and finishing behind the quote. AIHFABS offers a 3d printing service based on Digital Light Processing for compact resin parts, fine visual details, and efficient small batches.
Lead Time
From 48 hours
Typical Tolerance
±0.2 mm on supported geometry
Best Fit
Detailed components and compact batches
Process Overview
What Is DLP Printing?
Digital Light Processing cures a whole resin layer in one projected image instead of tracing that layer point by point with a laser.
Built for Compact, Detailed Resin Work
Because each layer is projected at once, DLP can deliver efficient layer times on compact parts while maintaining high XY resolution. AIHFABS quotes the process for jewelry-scale details, small housings, and repeat visual lots.
For projects that need a very large resin platform, AIHFABS notes that SLA may offer a more suitable build envelope. The correct process depends on part size, feature requirements, resin behavior, and the selected machine.
The live DLP build envelope varies by the projector cell assigned to the job. Confirm part size and orientation during quoting rather than assuming one universal machine volume.
| Capability | AIHFABS DLP Detail |
|---|---|
| Lead time | From 48 hours |
| Typical tolerance | ±0.2 mm on supported geometry |
| Build envelope | Varies by machine; typical desktop-to-mid-format plates |
| Surface finish | Smooth as-built; coating and additional finishing are available |
| Supports | Required on overhangs |
Material Options
DLP Resin Materials Listed by AIHFABS
The current DLP service page lists standard, high-detail, tough, high-temperature, and clear resin choices. Final selection should follow the part's functional and visual requirements.
Standard Resin Black
A listed dark standard resin option for presentation models and compact parts.
High-Detail Resin Gray
A listed high-detail grade in gray for geometry where visual definition matters.
High-Detail Resin White
A listed high-detail grade in white for fine visual features and models.
Tough Resin White
A listed tough resin option for projects that need more durability than standard modeling resin.
Ultra Tough Resin
AIHFABS lists Ultra Tough Resin in yellow and blue for suitable project requirements.
High-Temp Resistant Resin Red
A listed red resin option intended for applications that call for a high-temperature grade.
Premium Clear Resin
A listed clear resin option that can be paired with appropriate post-processing for visual parts.
Biocompatible Grades
Available only after project qualification. The required standard and contact type should be identified on the quote.
Post-Processing
DLP Surface Finish Options
AIHFABS describes DLP surfaces as smooth after curing, with washing, post-curing, light sanding, tinting, and clear coating available according to the part.
Washed & Post-Cured
The default deliverable follows an IPA wash and UV post-cure. Support marks can be dressed on request.
Tint or Light Sanding
Light sanding can be applied to flat surfaces, while optional tinting supports presentation requirements.
Clear Coat
A clear coat can be applied after post-curing to transparent or high-gloss presentation parts.
Production Workflow
How AIHFABS Runs DLP Jobs
The workflow balances small-feature exposure, plate nesting, resin handling, and post-processing.
01
Review the CAD File
Part dimensions, fine features, overhangs, material needs, and protected cosmetic faces are reviewed before production.
02
Orient and Nest the Lot
Parts are arranged for an exposure setting that can hold the smallest feature. Excessive plate packing can soften edges.
03
Print and Support the Part
The projector cures each complete resin layer. Required supports anchor overhangs during the build.
04
Wash, Post-Cure, and Finish
Parts follow the resin wash and UV post-cure workflow, then move to support removal and any requested finish.
Design Around Pixels, Cure Thickness, and Supports
AIHFABS recommends staying above the selected resin's published minimum feature size because knife edges may fail to cure. Small batches can share a plate, and a common Z height can improve nesting efficiency.
Mark surfaces that cannot show support witness marks. Also identify exposure to UV, chemicals, or skin contact so the resin choice can be reviewed against the real service environment.
For electronic housings and snap-fits, tolerance is only one part of fit validation. Wall thickness, orientation, support placement, resin behavior, and assembly testing all affect the result.
Process Fit
Advantages and Trade-Offs
DLP is a strong option for detailed compact parts, but part size, support requirements, and mechanical expectations still need to be checked.
Where DLP Performs Well
- Fast turnaround for detailed components and compact production batches
- Uniform full-layer exposure across multiple parts on one plate
- Smooth surfaces for visual components, miniatures, and light-related parts
Points to Review
- Build areas are commonly smaller than industrial SLA tanks
- Overhangs still require supports and may leave witness marks
- Resin toughness remains below nylon powder processes for many applications
Official AIHFABS Resources
Related Reading
Use these AIHFABS guides to prepare small resin parts, upload CAD files, and compare service requirements before ordering.
DLP Design Guide
0.2 mm DLP Resin Printing for Small Electronic Housings and Snap-Fits
Learn about ±0.2 mm tolerance, material selection, support strategy, and assembly validation for compact enclosures and snap-fit prototypes.
Read article →
Quoting Guide
How to Get a 3D Printing Instant Quote from STL and STEP Files
Review file preparation, units, wall thickness, orientation, and the quote information shown after uploading a resin part.
Read article →
Supplier Selection
How to Choose a Resin 3D Printing Service for Small Parts
Compare precision, surface finish, tolerance, and cost when evaluating resin printing for miniature features and small-batch production.
Read article →
DLP FAQ
Frequently Asked Questions
How is DLP different from SLA?
SLA traces each layer with a laser. DLP projects a complete layer, which is generally faster for dense plates of compact parts.
What tolerance should I plan for?
AIHFABS lists a typical tolerance of about ±0.2 mm on supported geometry. Actual results depend on the geometry, resin, orientation, supports, and project review.
What is the typical DLP lead time?
The AIHFABS DLP page states that many lots leave from 48 hours after the build orientation is approved.
Does DLP require supports?
Yes. Overhangs require anchors, so cosmetic or mating faces that cannot show support witness marks should be identified before production.
Can AIHFABS run biocompatible resin?
Only after project qualification. State the required standard and the type of contact on the quote so the material and workflow can be reviewed.
Upload Your Model for a DLP Quote
Share your CAD file, resin requirements, quantity, protected surfaces, and service environment so AIHFABS can review the process fit and lead time.