Print Specification
The practical production specification for Makr3D FDM printing, file formats, 3MF handling, materials, tolerances, finish and inspection limits.
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1. Scope
This Print Specification explains what Makr3D means by standard FDM production and where the team can override, hold or refuse a job.
2. Manufacturing process
Makr3D launch production uses fused deposition modelling, also called FDM or FFF. Parts are built layer by layer from thermoplastic filament. This process is suitable for many ecommerce products, organisers, decorative items, fixtures, prototypes and light functional parts, but it has visible and mechanical limits that sellers must account for.
3. Materials
| Material | Launch position | Important limits |
|---|---|---|
| PLA | Default general-purpose material where available in the selected colour. | Can soften under heat, may be brittle in thin sections, not certified food-contact or medical by default. |
| PETG | Available for selected colours and parts where toughness or temperature resistance is more suitable. | Can string, mark, flex and vary by colour or batch, not certified food-contact or medical by default. |
| Other materials | Only available when explicitly offered or approved by the team. | Requires material-specific settings, stock, QA expectations, warnings and pricing. |
4. File formats
Makr3D may accept STL, 3MF, STEP, OBJ and related formats where supported by the current upload and conversion workflow. Format acceptance does not mean a file is printable, correctly scaled, rights-cleared or suitable for the intended use. We may reject corrupt, excessively large, malicious, unsupported, non-manifold, badly scaled or incomplete files.
5. 3MF and seller settings
For Bambu Studio or OrcaSlicer 3MF files, Makr3D aims to honour compatible plate layout, orientation, supports, modifiers, material choices, colour intent, nozzle choice and other seller settings. We may override or reject settings where needed for machine compatibility, farm standards, safety, quality, stock, nozzle availability, queue reliability, product policy, file integrity or realistic production.
A 3MF file can contain settings that are unsuitable for a production farm. The team may move parts, change brims, supports, infill, wall counts, orientation, purge strategy, plate selection, colour mapping, seam position or profile where needed. If a change materially affects the seller's expected product, we may hold the order or ask for approval.
6. Slicing, orientation and scaling
Seller-supplied files must be correctly scaled and suitable for FDM. Makr3D may use validated farm profiles where no suitable 3MF settings are provided. We may orient parts for strength, surface finish, support reduction, reliability or production throughput. Scaling changes are not made unless requested, required by file-unit correction, or agreed in the workflow.
7. Finish expectations
Standard FDM parts may show:
- layer lines and layer-height texture;
- visible seams, start points, zits or small blobs;
- support contact marks or underside roughness;
- minor stringing, colour variation, sheen variation or batch variation;
- small gaps, top-surface texture or bridging marks;
- minor first-layer texture, elephant-foot controls or bed-surface marks;
- small dimensional variation due to material, orientation and geometry.
These are normal process characteristics unless they exceed the agreed quality threshold for the part. Sanding, vapour smoothing, painting, sealing, inserts, assembly and post-processing are not included unless explicitly quoted.
8. Tolerances
Launch tolerances are pending engineering sign-off. Until final values are published, sellers must treat tight fits, threaded parts, snap fits, sliding parts, press fits, bearings, magnets, holes, pegs, mating surfaces and assembly features as manual-review items. Where tolerances matter, provide drawings, intended fits, critical dimensions and acceptable ranges.
| Dimension type | Draft launch treatment |
|---|---|
| General decorative dimensions | Normal FDM variation expected. Final numeric range to be confirmed by engineering. |
| Functional fits and assemblies | Manual review recommended. Test prints may be required before bulk production. |
| Threads, snap fits and moving parts | Not guaranteed without design validation, orientation review and agreed tolerance targets. |
| Load-bearing dimensions | Not accepted for safety-critical reliance without separate approval and evidence. |
9. Colour and material matching
Colour names, swatches and previews are approximate. Actual colour can vary by manufacturer, batch, lighting, screen, nozzle, material and finish. If exact colour matching matters, you must request approval, provide a reference and accept that a test print or stock-specific run may be required.
10. Inspection and QA
Makr3D performs practical production QA, such as checking the correct file, material, colour, quantity, visible print quality, severe defects, packing and shipping label. QA is not destructive testing, certification, stress testing, food-contact validation, medical validation, PPE conformity assessment or regulatory approval unless separately agreed in writing.
11. Reprints and refusal
We may reprint at our cost if a confirmed production fault falls outside this specification or the agreed job instructions. We may refuse or re-quote jobs that are too fragile, too large, too risky, too slow, too wasteful, likely to fail, unsuitable for FDM, out of stock, incompatible with the farm, policy restricted or materially different from the quote.
12. Safety and regulated use
Standard Makr3D prints are not certified for food-contact, medical, dental, PPE, child-safety, electrical, fire, vehicle, aviation, marine, load-bearing, lifting, restraint or other regulated or safety-critical uses. Those uses are restricted under the Product Compliance Policy and Acceptable Use Policy.