Sand blasting (more uniform texture)
It is used to unify the matte graininess and touch of the surface and improve the consistency of appearance; it is more conducive to "consistent look and feel" for batch parts.
HP MJF Glass-Filled Nylon – Gray
HP MJF Glass-Filled Nylon – Gray is based on HP MJF process, its advantages lie in "batch consistency" and "dimensional stability."
Quote checklist: Upload your 3D model and, when available, a 2D drawing. Identify the required process, material, quantity, critical dimensions, finish, appearance standard, and target delivery date.
Key Material and Manufacturing Parameters
Engineering note: Values below are typical reference ranges. Final manufacturability, tolerances, material condition, surface finish, cost, and lead time depend on the drawing, geometry, quantity, and selected process.
Upload CAD files and mark critical features for an engineering review before production.
| Process | HP Multi Jet Fusion (MJF) 3D printing (glass fiber reinforced nylon) |
|---|---|
| Color | Gray (commonly used for engineering parts; more used for structural validation and positioning) |
| Dimensional tolerance | ±0.20 mm or ±0.20% (whichever is greater); it is recommended to mark the tolerance or note "accuracy first" for the key hole/datum surface |
| Minimum wall thickness | ≥0.8 mm (conventional); recommended ≥2.0 mm and reinforcement near load-bearing/screws |
| Rigidity and stability | Glass fiber reinforcement brings higher rigidity and lower warpage, suitable for positioning, support and load-bearing structures |
| Service temperature | About 150℃ (common indicators for materials; affected by working conditions and design) |
| Tensile strength | 60–80 MPa (glass fiber reinforced version is more strength/rigid oriented) |
| Density | About 1.02 g/cm³ |
| Assembly enhancements | support Threaded inserts;Please indicate the thread specification (such as M2/M3/M4), quantity and location; If you need to enlarge/ream/tapping, please make a note (for more stable assembly accuracy) |
| Finishing | Sandblasting, threaded inserts, and painting |
| Typical lead time | Related to size, quantity, typesetting density and finishing; clear delivery and expedited options will be given after uploading the file |
Finishing
Spray painting (closer to the finished look)
When you need uniform color, covering powder texture, or a more "finished" display effect, you can choose painting; it is recommended to provide reference pictures or texture requirements (matte/semi-matte).
Threaded inserts (screw connection is more reliable)
Suitable for structural parts that require repeated disassembly and assembly of screws, positioning and fastening, or load-bearing connections; please note the thread specifications, quantity, and location (secondary processing of the hole location can be evaluated if necessary).
Why Choose HP MJF Glass-Filled Nylon – Gray
High rigidity and more "stable"
Glass fiber reinforcement improves rigidity and is more suitable for support, positioning, and load-bearing structures; it is more friendly to structural parts that are more sensitive to deformation.
Dimensional stability and batch consistency
Suitable for delivery of low- to medium-volume production of repetitive parts, assembling positioning parts and fixture parts; more controllable dimensional fluctuations in parallel production of multiple parts.
Comprehensive cost-effectiveness with priority on functional parts
Compared with SLA resin which is partial to appearance, it is more suitable for long-term structural validation and assembly reliability evaluation; it can be used as a "functional validation material" before mass production.
Improved assembly enhancement plan
support Threaded inserts Improve the reliability of screw connections; with sandblasting/painting, you can achieve a better balance between function and appearance.
Recommended Applications
- Load-bearing structural parts: Brackets, fixed seats, clamping structures, etc., which require higher rigidity and stability
- Assembly positioning parts: Positioning blocks, assembly datums, fixtures and fixtures, requiring dimensional consistency
- Small and medium-sized batches of duplicate parts: Multiple pieces of the same item, repurchase and delivery, hope that size fluctuations are more controllable
- screw connection:Can be added Threaded inserts, suitable for repeated disassembly and assembly verification
It is not recommended to use it directly (it is recommended to change materials/processes)
- Fasteners that require significant elasticity/toughness: Glass fiber reinforcement is relatively rigid, and buckle fatigue needs to be carefully evaluated.
- Pursue mirror/delicate display appearance: Prioritize SLA appearance resin or add painting scheme
- Ultra-high precision fit: Recommend secondary processing (hole expansion/reaming) or switch to CNC/injection molding route
- Long-term outdoor harsh weather resistance: Need to evaluate weather-resistant materials or add surface protection solutions
Design and DFM Guidelines
- Bearing capacity and rigidity: Glass fiber reinforcement is more suitable for "rigidity first". It is recommended to reinforce the load-bearing path and add rounded transitions to avoid stress concentration.
- Hole location and assembly: It is recommended that the assembly holes/positioning holes be marked with tolerances; key holes can be marked with secondary reaming/reaming to improve assembly consistency with threaded inserts.
- Buckle structure: Be cautious when repeated elastic deformation is required; it is recommended to reduce the strain, increase the fillet, increase the lead-in, or switch to a tougher nylon material.
- Wall Thickness and Warpage: Try to keep the wall thickness as uniform as possible; large flat surfaces can be reinforced or designed in separate parts to further reduce the risk of warping.
- Appearance requirements: The surface of MJF has a fine matte grain feel. If you want a more "finished feel", it is recommended to sandblast to unify the texture or spray paint to achieve the color/texture target.
Comparison with common nylon/resin materials
| Material | Key Advantages | Mainly applicable | Not suitable |
|---|---|---|---|
| HP Nylon - Gray (MJF) | Batch consistency and dimensional stability ensure more stable delivery of functional parts | Delivery of low- to medium-volume production of functional parts, assemblies, and repetitive parts | A higher rigidity load-bearing positioning structure is required (GF version is better) |
| HP Nylon & Fiberglass - Black (MJF GF) | High rigidity and dimensional stability, suitable for load-bearing structures and positioning parts | Priority is given to load-bearing structural parts, assembly positioning parts, and dimensional stability. | Fasteners that require elasticity/toughness (needs evaluation) |
| White Nylon (SLS) | Strong and balanced, no support required, suitable for complex structures and typesetting production | Structural validation, assembly parts, wear-resistant moving parts, small batch functional parts | Ultimate mirror appearance, ultra-high precision fit (requires secondary processing/process change) |
| Black Nylon (SLS) | The functional type is more stable, black is more resistant to dirt, and is suitable for functional parts with color requirements. | Assembly parts, structural parts, wear-resistant parts, batch functional parts | The ultimate mirror appearance and high-precision combination |
| Tough SLA - Yellow-Green (SLA) | A more refined appearance with greater detail; and more impact resistant than standard resins | Appearance + prototype with certain toughness, buckle verification, light load function verification | Complex structure mass layout, wear-resistant for long-term use (better with nylon) |