Design Guide-Nylon

The nylon model is composed of white, very fine powder particles. The product has high strength and certain flexibility, and can withstand small impact forces,

Resistant to slight bending. The surface of the model has a frosted, granular appearance with slight permeability. At present, Qile has multiple SLS3D printers,

The printing materials are mainly nylon PA and nylon plus glass fiber PA + GF.

1. Design specifications

Recommended wall thickness: 1mm or more (related to 3D model size)

Minimum details: 0.4mm

Accuracy: 0.15mm

Clearance: 0.5mm

2. Basic principles, suggestions and strategies

1) Wall thickness

For 3D printing, the wall thickness refers to the distance between one surface of the model and its corresponding surface. The wall thickness will either make your wall firm and strong, or

Flexible and easy to deform. In order to ensure the quality of the model, we recommend that the wall thickness is at least 1mm, otherwise the model is prone to the phenomenon of cracks and holes when printing.

2) Model shelling

Model shelling is to turn a solid model into a hollow model with a certain wall thickness. Try to shell the model if possible, this will avoid printing

Deformation and stains are generated in the process, and printing costs can also be saved. We recommend that you make two small holes on the model, it is easy to burn the unburnt after printing

Knot powder is poured out. Imagine that the powder is flowing, find the most suitable location to design small holes that bleed out excess material.

3) Large planes can cause warpage

Printing a large flat structure is a difficult idea to realize, and in most cases the model will deform. This process is called "warping". even if

You can't solve this problem by adding ribs at the bottom of the plane, slowing down the printing speed, and extending the cooling time. The key is to try to design

Avoid large flat structures.

4) Clearance between moving parts

When you design the interlocking structure, the gap between the product surfaces is very critical, it will affect the flexibility and bending performance of the product. We recommend

The minimum gap of the surface of the profile should be 0.5mm. If it can allow a larger gap, the gap between the rings is closely related to the size of your design.

You can leave a large gap for the big ring, and you can print more products in the limited space. For small rings, you must limit the space to ensure

The horizontal and vertical distance between the rings.

5) Assembly

When designing a model that requires assembly, it is important to maintain sufficient clearance for the connected parts. The perfect assembly on the software does not mean the actual product

This is because the software will not consider the friction in the real world, and the situation of thermal expansion and contraction. Therefore, the use of different parts in combination

Environment, there is at least 0.6mm distance between parts, making assembly easier.

6) Bumpy details

For depressed text or surface details, we recommend that the text line width is at least 1mm, depth is 1.5mm, and overall height is at least 4.5mm.

The raised text or surface details should have sufficient strength so as 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 3mmm, and the height of the protrusion is at least 0.8mm.