Nylon model is composed of white and very fine powder particles. The product has high strength and certain flexibility, and can withstand small impact force
Resistant to slight bending. The surface of the model presents a frosted and granular appearance with slight permeability. Currently, Qile has multiple sls3d printers,
The printing materials are mainly nylon PA and nylon plus glass fiber PA + GF.
1. Design specification
Recommended wall thickness: above 1mm (related to 3D model size)
Minimum detail: 0.4mm
Accuracy: 0.15mm
Clearance: 0.5mm
2. Basic principles, suggestions and Strategies
1) Wall thickness
For 3D printing, wall thickness refers to the distance between one surface of the model and its corresponding surface. The wall thickness either makes your wall solid or
Flexible and easy to deform. In order to ensure the quality of the model, we recommend that the wall thickness be at least 1mm, otherwise the model is prone to be broken and rotten during printing.
2) Model shell pulling
Model shell pulling is to change a solid model into a hollow model with a certain wall thickness. If possible, try to shell the model, which will avoid printing
Deformation and stains are generated in the process, and printing cost can be saved. We recommend that you open two small holes on the model, so that it is easy to remove unburned after printing
Pour out the powder. Imagine that the powder is flowing, and find the most suitable position to design the small hole for the excess material.
3) Large planes can cause warpage
Printing a large planar structure is a difficult idea to realize. In most cases, the model will be deformed. This process is called warping. even if
You can't solve this problem by adding ribs at the bottom of the plane to slow down the printing speed and prolong the cooling time. The key is to design as much as possible
Avoid large planar structures.
4) Clearance between moving parts
When you design the interlocking structure, the clearance between the product surfaces is very critical, which will affect the flexibility and bending performance of the product. We suggest that
The minimum clearance of the profile surface shall be kept at 0.5mm. If a larger clearance is allowed, it is better. The clearance between rings is closely related to the design size you change.
For the large ring, you can leave a large gap and print more products in a limited space. For the small ring, you must limit the space to ensure that
Horizontal and vertical distance between rings.
5) Assemble
When designing a model to be assembled, it is important to keep enough clearance between the connected parts. The perfect assembly of software does not mean that the actual product also
This is because the software does not take into account the real world friction and thermal expansion and contraction. Therefore, different parts combine their use
Environment: at least 0.6mm distance shall be reserved between parts to make assembly easier.
6) Convex and concave details
For concave text or surface details, we recommend that the width of the text line be at least 1mm, the depth be 1.5mm, and the overall height be at least 4.5mm.
The raised text or surface details shall be strong enough not to be damaged during printing or transportation. We recommend that the text line width be at least:
0.8mm, the overall height is at least 3mm, and the convex height is at least 0.8mm
