The printing materials are mainly nylon PA and nylon plus glass fiber pa+gf.
1. Design specifications
Recommended wall thickness: above 1mm (related to 3D model size)
Minimum detail: 0.4mm
Accuracy: 0.15mm
Gap: 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 strong 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 holes and rotten surfaces during printing.
2) Model shell pulling
Model shell pulling is to turn 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 occur in the process, which can also save printing costs. We suggest you make two small holes in the model, so it is easy to burn unburned after printing
Pour out the powder. Imagine that the powder is flowing, and find the most suitable position to design the small hole that flows out of the excess material.
3) Large plane will cause warpage
Printing a large planar structure is a difficult idea to realize. In most cases, the model will deform. This process is called "warping". even if
You can't solve this problem by adding stiffeners at the bottom of the plane, slowing down the printing speed and extending the cooling time. The key is to try to
Avoid large planar structures.
4) Clearance between moving parts
When you design the interlocking structure, the gap between the product surfaces is very critical, which will affect the flexibility and bending performance of the product. We suggest model
The minimum clearance of the O-shaped surface should be kept at 0.5mm. If a larger clearance is allowed, it is better. The clearance between rings is closely related to your design size.
For the big 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
Horizontal and vertical distance between rings.
5) Assembly
When designing models that need to be assembled, it is very important to keep enough clearance between connected parts. The perfect assembly of software does not mean that the actual product is also
So, because the software will not consider the friction in the real world, as well as the expansion and contraction of heat. Therefore, different parts are used together
Environment, at least 0.6mm distance shall be left between parts to make assembly easier.
6) Convex and concave details
For the concave text or surface details, we suggest that the width of the text line should be at least 1mm, the depth should be 1.5mm, and the overall height should be at least 4.5mm.
The raised text or surface details should be strong enough not to be damaged during printing or transportation. We recommend that the text line width be at least
0.8mm, with an overall height of at least 3mmm and a raised height of at least 0.8mm.