> RESINS · 19 RESINS IN 7 GROUPS
SLA printing on Form 4L
Form 4L for clear parts, smooth paint-ready surfaces, fine details and parts larger than the SLS chamber.
Form 4L Parameters
353 × 196 × 350 mm
nominal build volume
25 µm
layer height from, depending on resin
LFD
printing technology
19 resins
resins in the offer
02 / SLA · Form 4L
Large format. Fine details.
Appearance models, covers and prototypes in resin. We select the resin, supports and finishing for the geometry and intended use of your part.
Find a resin for your partWhat we print in resin
6 part types
Design models and full-size mock-ups
A full-size housing for evaluating proportions and fit. We agree the visible surfaces and preparation for painting when reviewing the model.
Tough resins for functional trials
Prototype before an SLS series
A model for checking geometry and assembly. Fits and snap-fit behaviour also need verification in the series production material.
Tough resins for functional trials
Transparent parts
An inspection cover, light cover or flow-chamber prototype. Clarity depends on thickness and finish; optical requirements are discussed before printing.
Transparent
Patterns for silicone moulds
A master pattern for a silicone mould. We agree the material, surface finishing and compatibility with the casting process before making the pattern.
Transparent
Fixtures and gauges
Assembly fixtures, templates and gauges. Resin selection requires the load, working temperature and critical fit dimensions.
Stiff, glass-filled resins (Rigid)
Fine detail
Lettering, textures and model-making parts. We choose the resin, orientation and layer height to suit the geometry and intended finish.
Visual models and prototypes
SLA applications
- Models and architecture
Form 4L has a nominal build volume of 353 × 196 × 350 mm. We assess model size with supports and orientation.
- Transparent components
Clear V5 covers and flow models, with a finish selected for the viewing surface.
- Master models
An SLA pattern with agreed surface, fit and inspection scope.
Seven groups, one catalog
7 groups · 19 resins
We print only items that the manufacturer marks as compatible with Form 4L. In stock: 4 resins.
Visual models and prototypes
6 resins
Transparent
1 resin
Tough resins for functional trials
3 resins
Stiff, glass-filled resins
2 resins
Temperature and special conditions
3 resins
Flexible resins
2 resins
Patterns for metal casting
2 resins
What we do not print
We do not produce dental or medical devices, provide dental or medical services, or make safety-critical parts. We use Precision Model Resin only for technical models and masters. Which lines →
Which technology to print your detail
Both at our hall
Consider SLS
Mechanisms and functional parts
- Hinge, latch, housing, fixture in the machine.
- Specify the load, temperature and number of operating cycles.
- Series that can use the build volume effectively.
- Geometry allows powder removal from internal spaces.
Consider SLA
Surface area or size matters
- It must be transparent or smooth for painting.
- Small detail, text, thin edge.
- Pattern for silicone mold, prototype model.
- A large model after checking supports and processing.
Full comparison, ten criteriaDurability, surface, dimensions, series cost and the rest, line by line.
Scroll the table sideways to see the remaining columns.
| Criterion | SLS · Fuse 1+ 30W | SLA · Form 4L | Selection |
|---|---|---|---|
| Surface after processingOrientation and processing affect the surface in both processes. Preparation for painting is agreed separately. | Matte, grainy | Smooth, possible support marks | depends |
| SupportsSLS makes undercuts easier. Channels need access for powder removal; SLA requires planning supports and washing access. | Powder supports the part | Depend on geometry and orientation | SLS |
| Moving assemblies in one buildClearances, internal cleaning and access for support removal determine whether the mechanism is feasible. | Possible with suitable clearances | Require geometry assessment | SLS |
| Envelope and build volumeSLS shows the envelope used by the calculator. SLA shows the nominal machine volume; orientation, supports and processing may limit part size. | 159.8 × 159.8 × 295.5 mm | 353 × 196 × 350 mm | SLA |
| Layer height and fine featuresLayer height defines the Z-axis step. Lettering, holes and thin walls are assessed separately; layer height does not define part tolerance. | 110 µm layer height | Layer heights from 25 µm, depending on resin | SLA |
| TransparencyThickness, support marks and finishing affect clarity. A sample is approved for the required internal visibility. | Polyamide is opaque | Clear, with an agreed finish | SLA |
| Functional parts and long-term useTemperature, load, exposure medium and service duration determine selection. TDS results do not establish the service life of a specific part. | PA12, PA11 and TPU 90A | Resins selected for working conditions | depends |
| Orientation and part propertiesIn both processes, orientation is assessed relative to loading. Specimen test conditions and process settings must support the comparison. | We check the test axes in the TDS | We account for orientation and post-curing | depends |
| Series of 100+ partsWe compare the actual model, quantity, material and processing scope. Quantity alone does not identify the cheaper process. | Packing throughout the build volume | Parts share a platform cycle | depends |
| Quotation from a fileAn SLA quotation accounts for supports, platform layout and finishing. A technologist confirms the binding offer. | Online estimate for PA12 | Individual quotation after model review | depends |
The SLS envelope used by the calculator is 159.8 × 159.8 × 295.5 mm, less than the chamber, as part of it requires powder around itself. Full powder data is in material datasheets, and geometry boundary values in design guidelines.
Preparing an SLA model
From the workshop
Visible surface
Identify the visible surface. When orienting the model, we aim to limit support marks there; the sanding scope is agreed in the quotation.
Resin drainage
Hollow spaces need resin drainage, air access and access for washing. The number and position of holes depend on geometry and orientation.
Large concave surfaces
Concave surfaces can form a closed cup during printing. We check orientation and openings before preparing supports.
Washing and post-curing
We wash and post-cure the resin using the selected process. Cycles, drying and finishing are included in the schedule; TDS values refer to the manufacturer's specified tests.
Critical fit dimensions
Include a drawing with tolerances and describe assembly. We assess fits considering orientation, supports and dimensional changes during processing.
Production series
For larger series, we also compare SLS. Process selection is based on the model, material, finishing and working conditions.
A technician will confirm the minimum wall thickness, hole size and clearance for your chosen resin when quoting.
How a detail is made from resin
Form 4L Complete Package
01 · PRINT
Layer height selected for the part
Resin curing on Form 4L. Layer height, orientation and supports are selected for the resin and geometry.
02 · FORM WASH L
Washing and drying
Washing in Form Wash L (43 l) removes uncured resin from accessible surfaces. Channels and internal spaces need access; the duration and washing liquid are selected for the material.
03 · FORM CURE L
Post-curing
Form Cure L: 405 nm light and a machine temperature range up to 100 °C. The cycle depends on the resin; properties are compared using the conditions stated in its TDS.
04 · POST-PROCESSING
Supports and finishing
Support removal, treatment of support marks and the agreed finish. Visible surfaces and critical dimensions are specified before printing.
Support and finishing are not visible in the file volume, so the resin calculator cannot calculate them. Upload the model as with SLS; we will send the quotation within 24 working hours.
The Form Wash L basket accommodates 353 × 200 × 296 mm. For large parts, we check the washing orientation and access to internal spaces. Any additional processing is agreed in the quotation.
SLA price examples
B2B net · 100 µm
Print time depends on height. Parts on the same platform share the cycle cost, so the unit price falls as quantity grows.
Indicative net price per piece, excluding file setup and shipping.
Scroll the table sideways to see the remaining columns.
| Part | 25 pieces | 1 piece |
|---|---|---|
| Jewelry ring · pattern | PLN 54.27 | PLN 299.00 |
| Column miniature | PLN 59.93 | PLN 299.00 |
| LED cover · prototype | PLN 55.76 | PLN 299.00 |
| Dragon warrior · miniature | PLN 61.95 | PLN 299.00 |
Full table and print parametersAll 17 parts, order totals and STL downloads.
Indicative prices. The per-part price excludes file preparation. “Total net” includes PLN 150.00 for one-off preparation of the new file. “Order minimum” marks prices determined by the order minimum. Shipping is not included.
Download the STL next to the part name. In the SLA quote with a model a technologist checks supports, orientation and finishing. The price requires individual confirmation.
Scroll the table sideways to see the remaining columns.
| Part | Height | On the platform | 25 pieces | 10 pieces | 5 pieces | 1 piece |
|---|---|---|---|---|---|---|
| Jewelry ring · pattern⌀23 × 6 mm · 0.8 cm³Download STL: Jewelry ring · pattern | 6 mmprint 12 min | 71 piecesin a single cycle | PLN 54.27Total net: PLN 1,506.751 cycle | PLN 57.52Total net: PLN 725.201 cycle | PLN 62.94Total net: PLN 464.701 cycle | PLN 299.00Total net: PLN 449.00minimum threshold |
| Column miniature⌀24 × 29 mm · 5.2 cm³Download STL: Column miniature | 29 mmprint 58 min | 66 piecesin a single cycle | PLN 59.93Total net: PLN 1,648.251 cycle | PLN 65.11Total net: PLN 801.101 cycle | PLN 73.78Total net: PLN 518.901 cycle | PLN 299.00Total net: PLN 449.00minimum threshold |
| LED cover · prototype⌀22 × 16 mm · 1.8 cm³Download STL: LED cover · prototype | 16 mmprint 32 min | 78 piecesin a single cycle | PLN 55.76Total net: PLN 1,544.001 cycle | PLN 59.85Total net: PLN 748.501 cycle | PLN 66.68Total net: PLN 483.401 cycle | PLN 299.00Total net: PLN 449.00minimum threshold |
| Dragon warrior · miniature32.5 × 32.8 × 48 mm · 6.2 cm³Download STL: Dragon warrior · miniatureArtec 3D · Dragon · CC BY 3.0Mesh reduction and simplification. | 48 mmprint 1 h 36 min | 34 piecesin a single cycle | PLN 61.95Total net: PLN 1,698.751 cycle | PLN 68.75Total net: PLN 837.501 cycle | PLN 80.07Total net: PLN 550.351 cycle | PLN 299.00Total net: PLN 449.00minimum threshold |
| Mini impeller⌀48 × 14 mm · 6.0 cm³Download STL: Mini impeller | 14 mmprint 28 min | 16 piecesin a single cycle | PLN 62.36Total net: PLN 1,709.002 cycles | PLN 63.68Total net: PLN 786.801 cycle | PLN 70.22Total net: PLN 501.101 cycle | PLN 299.00Total net: PLN 449.00minimum threshold |
| Snap clip24 × 26 × 8 mm · 1.7 cm³Download STL: Snap clip | 8 mmprint 16 min | 60 piecesin a single cycle | PLN 55.21Total net: PLN 1,530.251 cycle | PLN 58.63Total net: PLN 736.301 cycle | PLN 64.34Total net: PLN 471.701 cycle | PLN 299.00Total net: PLN 449.00minimum threshold |
| Nozzle with internal channel⌀18 × 30 mm · 2.4 cm³Download STL: Nozzle with internal channel | 30 mmprint 1 h | 117 piecesin a single cycle | PLN 57.16Total net: PLN 1,579.001 cycle | PLN 62.44Total net: PLN 774.401 cycle | PLN 71.23Total net: PLN 506.151 cycle | PLN 299.00Total net: PLN 449.00minimum threshold |
| 90° Air Channel60 × 36 × 60 mm · 17.3 cm³Download STL: 90° Air Channel | 60 mmprint 2 h | 17 piecesin a single cycle | PLN 78.75Total net: PLN 2,118.752 cycles | PLN 81.37Total net: PLN 963.701 cycle | PLN 94.38Total net: PLN 621.901 cycle | PLN 299.00Total net: PLN 449.00minimum threshold |
| Lattice support80 × 64 × 5 mm · 15.2 cm³Download STL: Lattice support | 5 mmprint 10 min | 7 piecesin a single cycle | PLN 74.65Total net: PLN 2,016.254 cycles | PLN 76.75Total net: PLN 917.502 cycles | PLN 76.75Total net: PLN 533.751 cycle | PLN 299.00Total net: PLN 449.00minimum threshold |
| Segment orthosis · demonstrator68.1 × 90 × 17.5 mm · 16.1 cm³Download STL: Segment orthosis · demonstrator | 18 mmprint 36 min | 6 piecesin a single cycle | PLN 81.37Total net: PLN 2,184.255 cycles | PLN 81.37Total net: PLN 963.702 cycles | PLN 81.37Total net: PLN 556.851 cycle | PLN 299.00Total net: PLN 449.00minimum threshold |
| Blower impeller⌀96 × 28 mm · 38.3 cm³Download STL: Blower impeller | 28 mmprint 56 min | 4 piecesin a single cycle | PLN 112.77Total net: PLN 2,969.257 cycles | PLN 114.48Total net: PLN 1,294.803 cycles | PLN 122.99Total net: PLN 764.952 cycles | PLN 299.00Total net: PLN 449.00minimum threshold |
| Gear wheel⌀76.5 × 12 mm · 42.7 cm³Download STL: Gear wheel | 12 mmprint 24 min | 6 piecesin a single cycle | PLN 105.81Total net: PLN 2,795.255 cycles | PLN 105.81Total net: PLN 1,208.102 cycles | PLN 105.81Total net: PLN 679.051 cycle | PLN 299.00Total net: PLN 449.00minimum threshold |
| Pipe clamp82 × 54 × 20 mm · 45.9 cm³Download STL: Pipe clamp | 20 mmprint 40 min | 8 piecesin a single cycle | PLN 108.29Total net: PLN 2,857.254 cycles | PLN 111.23Total net: PLN 1,262.302 cycles | PLN 111.23Total net: PLN 706.151 cycle | PLN 299.00Total net: PLN 449.00minimum threshold |
| Support L60 × 60 × 40 mm · 27.4 cm³Download STL: Support L | 40 mmprint 1 h 20 min | 10 piecesin a single cycle | PLN 90.46Total net: PLN 2,411.503 cycles | PLN 88.43Total net: PLN 1,034.301 cycle | PLN 98.63Total net: PLN 643.151 cycle | PLN 299.00Total net: PLN 449.00minimum threshold |
| Spacer sleeve⌀40 × 50 mm · 40.1 cm³Download STL: Spacer sleeve | 50 mmprint 1 h 40 min | 23 piecesin a single cycle | PLN 100.10Total net: PLN 2,652.502 cycles | PLN 102.43Total net: PLN 1,174.301 cycle | PLN 114.05Total net: PLN 720.251 cycle | PLN 299.00Total net: PLN 449.00minimum threshold |
| Enclosure120 × 80 × 40 mm · 71.9 cm³Download STL: Enclosure | 40 mmprint 1 h 20 min | 3 piecesin a single cycle | PLN 158.79Total net: PLN 4,119.759 cycles | PLN 162.87Total net: PLN 1,778.704 cycles | PLN 162.87Total net: PLN 964.352 cycles | PLN 299.00Total net: PLN 449.00minimum threshold |
| Sierpinski Gasket25 × 25 × 25 mm · 6.0 cm³Download STL: Sierpinski Gasket | 25 mmprint 50 min | 60 piecesin a single cycle | PLN 60.38Total net: PLN 1,659.501 cycle | PLN 65.23Total net: PLN 802.301 cycle | PLN 73.33Total net: PLN 516.651 cycle | PLN 299.00Total net: PLN 449.00minimum threshold |
Compare the models in this table with SLS prices. Standard resin, medium supports and standard finishing. Minimum order: PLN 299.00 net. New file preparation: PLN 150.00 net.
Where does this price come fromShare of resin, machine and post-processing in the unit cost and the effect of layer thickness.
What the money is for
Share of the cost per piece in a series of ten.
- Resin with supports37%per piece
- Platform cycle per piece13%for the platform cycle
- Post-processing49%per piece
- Washing and auxiliary materials1%per piece
Layer is a pricing parameter
Same solid, same resin. Price relative to the thickest layer.
- 200 µm1 h 20 min1,0×
- 100 µmdefault2 h 40 min1,2×
- 50 µm5 h 20 min1,7×
- 25 µm10 h 40 min2,6×
We quote by default 100 µm. We go lower when the detail requires it, and we discuss this before printing, as it is visible in the price.
Tough 2000 and special-order resins cost more than our standard stocked range; Tough adds around 40% per part. Powder prices and process comparisons are in price list.
FAQ · SLA
What is SLA printing
8 questions
What is SLA printing?
SLA (stereolithography) cures liquid resin with light, layer by layer. Form 4L exposes the layer cross-section at once. Print time depends on height, resin, profile and geometry; quantity also affects platform layout and finishing. Printed parts need washing and post-curing according to the resin requirements.
Form 4L in the machine parkSource: Formlabs Form 4L, manufacturer specification
When is SLA better than SLS?
We consider SLA for transparency, fine detail and surface requirements. Form 4L has a build volume of 353 × 196 × 350 mm; supports and orientation limit the space available for a part. Layers from 25 µm are available for selected resins and profiles, without guaranteeing that part tolerance. SLS is our main process for functional parts and series; selection is confirmed after reviewing the model and working conditions.
Comparison of ten criteriaSource: Formlabs Form 4L, manufacturer specification
Is a resin part durable?
We select a specific resin for load, temperature, exposure time and finish. Grey and Clear serve uses including models and shape assessment, while Tough or Rigid resins have different specimen properties. TDS results do not guarantee finished-part service life. For sustained loads, we compare a suitable resin with PA12, accounting for design and environment.
Resin catalog and their limitationsWhat happens to the part after printing?
Washing in Form Wash L removes uncured resin from accessible surfaces. After drying, we post-cure parts in Form Cure L according to the resin profile; the unit operates at 405 nm and temperatures up to 100 °C, rather than one cycle for every material. Support removal and sanding scope are agreed for the order. Cavities and channels need washing access.
Four steps of the processSource: Formlabs Form Wash L (2nd generation), manufacturer specification; Formlabs Form Cure L (2nd generation), manufacturer specification
Why are support marks visible?
SLA parts may need printed supports. Removing them can leave marks; their position and finishing scope are agreed around visible and critical surfaces. Supports cannot always be kept off an entire face. SLS uses surrounding powder instead of printed supports, but still needs cleaning.
Designing for resinCan a fully transparent part be printed?
We consider Clear Resin V5 for transparent parts. The effect depends on geometry, thickness, orientation and finish. We agree the required clarity and polishing or other finishing during quotation; a glass-like result is not guaranteed for every model. An LED cover and a part that must offer a clear view may need different finishing.
Clear Resin in the catalogHow do you confirm the price of resin printing?
The price depends on the number of parts on the platform, supports and post-processing. The calculator gives an indicative result; a technologist checks the actual layout and preparation. The minimum SLA order for businesses is PLN 299.00 net. Send your model through the resin enquiry form for a reply within 24 working hours.
Send your model for an SLA quoteDo you print dental and medical resins?
No. To call anything a medical device requires a certified and validated production process, which we do not conduct. For the same reason, we do not accept parts responsible for safety. We produce anatomical models for presentation and teaching templates as models, not as medical devices.
Which lines we excludeDon't know whether to use powder or resin?
Send us the model; we'll review it and tell you which machine will produce better results.
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