Additive manufacturing Montreal
What is SLA printing
Stereolithography (SLA) uses a UV laser to cure liquid photopolymer resin one ultra-thin layer at a time. The result? Parts with near-isotropic strength, dimensional accuracy down to 0.025 mm, and surface quality that rivals injection molding—straight off the build platform.
| Specification | Value |
|---|---|
| Layer Resolution | 0.025mm – 0.1mm |
| Build Volume | 145 × 145 × 175 mm |
| Tolerance | ±0.1mm |
| Surface Finish | Ra 0.8μm |
| Materials | 20+ specialized resins |
| Post-Processing | Washing, UV curing, support removal |
For complex projects or bulk orders, contact us for personalized pricing.
A 405 nm laser traces each cross-section onto the resin surface, triggering photopolymerization and solidifying the material with uniform mechanical properties in every direction.
After each layer cures, the platform descends by as little as 0.025 mm and a fresh coat of resin is swept across the surface. This repeats thousands of times until the part is complete.
Parts are cleaned in isopropyl alcohol, UV post-cured for full strength (up to 40% stronger), then supports are carefully removed and sanded smooth.
As a leading 3D print shop in Montreal, AllPrototype leverages this technology to deliver commercial 3D printing with surface quality that rivals injection molding. Ready to start? Get an instant 3D printing quote.
Achieve tolerances as tight as ±0.1mm with smooth surface finishes
Capture intricate features and complex geometries impossible with other methods
Print multiple parts simultaneously regardless of complexity
Same-day printing available for urgent prototypes and production parts
Here’s exactly what happens when you place an order—no surprises, no guesswork. Every project follows the same quality-controlled workflow, whether it’s a one-off prototype or a batch of 200 production parts.
Send us your STL, OBJ, or STEP file through our portal. Within 30 minutes, one of our engineers reviews it for printability—checking wall thickness (0.4 mm minimum), overhangs, and geometry issues. If anything needs adjusting, we’ll explain exactly what and why.
We help you pick the right resin based on what matters most: strength, clarity, biocompatibility, or heat resistance. Then we plan the build orientation to minimize supports while keeping cosmetic surfaces pristine. It’s a balancing act between surface quality, print time, and structural integrity.
The printer’s 405 nm laser traces each cross-section onto liquid resin with an 85 μm spot size. Each layer can be as thin as 0.025 mm. After curing, the platform descends, fresh resin is swept across, and the process repeats—building your part from the bottom up with exceptional precision.
Finished parts go through a three-stage workflow: a 10–15 minute IPA wash to remove uncured resin, 30–60 minutes of UV curing at 60°C for full mechanical properties, and careful hand-removal of supports followed by sanding. We also offer wet sanding to 2000 grit, clear coating, and custom painting.
Every part is dimensionally inspected with digital calipers (and CMM for critical tolerances). We verify everything falls within ±0.1 mm of your CAD specs before packaging in anti-static foam with desiccant. Montreal clients can pick up same-day; everyone else gets careful, crush-resistant shipping. Ready to start? Get an instant 3D printing quote.
From standard prototyping resins to biocompatible materials, we have the right material for your specific application.
Near-optically-clear when post-processed. Achieves >90% light transmittance after wet sanding and clear coating. Tensile strength: 65 MPa.
Best For
Our most popular resin. The neutral grey reveals fine surface details without glare—perfect for client presentations. Excellent paint adhesion. Elongation at break: 6.2%.
Best For
Crisp, opaque white with detail capture down to 0.025 mm features. Ideal for photography, displays, and painting. Impact strength: 25 J/m.
Best For
Deeply pigmented—looks professional without painting. UV-stabilized to resist yellowing. Flexural modulus: 2.2 GPa.
Best For
Simulates ABS: 55.7 MPa tensile strength, 38 J/m impact resistance. Great for snap-fits, living hinges, and parts that get handled repeatedly. Can be drilled and tapped.
Multiple durometers from very soft (Shore A 40) to semi-rigid (Shore A 80). Perfect for prototyping rubber components, grips, and vibration dampeners. Elongation: 100–160%.
Handles continuous temperatures up to 238°C. NASA-approved low outgassing for vacuum environments. Used extensively for wind tunnel models and automotive prototypes.
Glass-reinforced for exceptional stiffness (4.1 GPa flexural modulus) with minimal deformation under load. Ideal for short-run injection mold inserts and structural components.
Certified to USP Class VI and ISO 10993 standards. Steam autoclavable at 134°C. The amber tint provides visibility during surgical procedures. Tensile strength: 50 MPa.
FDA-cleared for up to 1 year of continuous intraoral use. Fracture-resistant formulation that withstands occlusal forces. Used directly for retainers, night guards, and splints.
Formulated specifically for surgical drill guides. Radiolucent for intraoperative imaging compatibility. Withstands autoclave sterilization without dimensional change.
Contains 20% real wax for clean burnout. Captures details as fine as 0.025 mm—pavé settings, micro-prongs, intricate filigree. 8-hour graduated burnout cycle reaching 732°C.
Engineered for industrial casting with larger flasks and higher burnout temps. Silica-filled for excellent green strength when handling thin-walled patterns.
Not sure which material is right? Our engineers provide free material consultations.
From jewelers casting precious metals to surgeons planning implant procedures, here’s how teams across different industries put our SLA printing to work.
Castable Wax Resin
SLA has transformed how goldsmiths and designers work. Instead of hand-carving wax, they now go straight from CAD to a casting-ready pattern with 0.025 mm detail—every filigree, every pavé setting captured perfectly. Our Castable Wax resin burns out cleanly with zero ash residue, and the design-to-casting cycle drops from weeks to 24–48 hours. Montreal jewelers using our service report 60% lower master pattern costs compared to traditional carving.
BioMed Amber / Dental LT Clear
Our biocompatible resins are FDA-cleared and USP Class VI certified—meaning they can be used for surgical guides, orthodontic models, and dental appliances that contact patients directly. Positional accuracy within 0.1 mm ensures implant guides fit precisely, and sterilizable materials allow for direct clinical use. Dental labs working with us have cut model turnaround from 5 days to same-day.
Tough Resin / High Temp Resin
When you need a prototype that looks and feels like the final injection-molded product, SLA is hard to beat. Our Tough Resin hits 55 J/m impact resistance (ABS territory), while High Temp handles 238°C for under-hood and aerospace testing. The surface finish (Ra 0.8 μm) means less post-processing, and snap-fits, living hinges, and press-fit inserts all come out dimensionally accurate enough for functional testing. Most engineering teams iterate 3–5 versions in the time it would take to get a single CNC prototype.
Head-to-head comparison
| Feature | SLA (Resin) | FDM (Filament) | SLS (Powder) |
|---|---|---|---|
| Surface Quality | Excellent | Good | Good |
| Detail Resolution | 0.025mm | 0.1-0.3mm | 0.1mm |
| Support Structures | Required | Required | Not Required |
| Material Variety | 20+ Resins | 100+ Filaments | Limited |
| Speed (per part) | Medium | Slow | Fast |
| Cost per Part | Medium | Low | High |
| Post-Processing | Washing + UV | Minimal | Powder Removal |
Still not sure which technology is right for your project?
You have options: buy your own printer, use an online service, or work with a local team that actually understands your project. Here’s how we compare—and why over 500 teams have chosen AllPrototype.
| Feature | AllPrototype (Us) | Online Print Farms | In-House Desktop SLA |
|---|---|---|---|
| Layer Resolution | 0.025 mm | 0.05–0.1 mm typical | 0.025–0.05 mm |
| Material Selection | 20+ specialized resins | 5–10 basic resins | Limited by printer |
| Turnaround Time | Same-day available | 5–10 business days | Immediate but manual |
| Pricing Model | Transparent calculator | Hidden fees common | High upfront ($3K–$10K+) |
| Expert Support | Free expert consultation | Email only / chatbot | Self-service |
| Post-Processing | Full finishing suite | Basic only | DIY required |
| Quality Standards | ISO 9001 quality processes | Varies widely | None |
| Local Service | Montreal local pickup | Shipping only | N/A |
| Design Review | Included free | Paid add-on | N/A |
| Volume Discounts | Up to 30% off | Limited | N/A |
See how SLA 3D printing delivers precision results across diverse industries and applications.
Create intricate jewelry patterns for investment casting with exceptional detail
Complex prong settings with 0.025 mm detail accuracy
Recommended Materials
Personalized designs with fine engravings and textures
Recommended Materials
Precise mechanical parts and decorative elements
Recommended Materials
Biocompatible resins meet medical standards for dental applications
Patient-specific guides for implant placement
Precise dental impressions for prosthetics
Custom clear aligners and retainers
Heat-resistant parts for under-hood applications
Precise housings and mechanical assemblies
Biocompatible prototypes for medical equipment
Tabletop figures with intricate armor, weapons, and facial features
Scale buildings with fine architectural details
Detailed artistic pieces and collectibles
Upload your 3D file and get an instant quote for professional SLA printing.
Get an instant estimate for your SLA 3D printing project. Transparent pricing with no hidden fees.
For complex projects or bulk orders, contact us for personalized pricing.
* Prices are estimates based on average part size. Final pricing depends on geometry, supports required, and specific material chosen. Upload your file for exact pricing.
See clear SLA printing used to reproduce a hard-to-find automotive part.
Replacement clear lens covers reproduced by 3D scanning the originals, modelling them in CAD, printing them in clear resin by SLA and polishing them.
Get answers to the most common questions about our SLA 3D printing services.
We work with STL, OBJ, 3MF, PLY, and STEP files—STL is preferred for optimal slicing. We also accept native files from SolidWorks, Fusion 360, Inventor, and Rhino. Every submission gets a free design review (usually within 30 minutes) where we check for non-manifold edges, thin walls, and other printability issues.
Ready to start? Get an instant 3D printing quote.
Our SLA experts are here to help with technical questions and project consultation.
