3D Printing Design Guidelines
1. Wall Thickness
3D Printing process needs to go through alcohol cleaning, supports removing, grinding, sandblasting and so on. So the model needs a certain strength, and the thickness determines the strength of the parts.
In 3D Printing, wall thickness refers to the distance between one surface of your part and the opposite sheer surface. A part made by 3D printing has a minimum wall thickness that is dependent on its overall size. As a guide, we recommend that you increase your wall thickness whenever you scale up your design to a larger size.
2. Embossed and Engraved Details
Min. Embossed Detail
LEDO6060/8000/9000R/8228/Black Resin : 0.5 mm deep & 0.5 mm wide
PA12: 0.5 mm deep & 0.5 mm wide
PAC: 0.8 mm deep & 0.8 mm wide
3201PA-F : 0.8 mm deep & 0.8 mm wide
ABS: 1.0 mm deep & 1.0 mm wide
316L: 1.0 mm deep & 1.0 mm wide
Min. Engraved Detail
LEDO6060/8000/9000R/8228/Black Resin: 0.5 mm deep & 0.5 mm wide
PA12: 0.5 mm deep & 0.5 mm wide
PAC: 0.8 mm deep & 0.8 mm wide
3201PA-F : 0.8 mm deep & 0.8 mm wide
ABS: 1.0 mm deep & 1.0 mm wide
316L: 1.0 mm deep & 1.0 mm wide
3. Thread design



The clearance fit of thread needs to refer to model clearance. If there is no clearance fit in the design, it will be unable to assemble. The minimum standard screw is M6.
4. Model clearance
Clearance between parts that will be assembled together
Clearance between moving parts
The minimum clearance between two moving or connecting parts.


5. Escape Holes

(1) The minimum escape hole diameter is 2.5mm.
(2) Two escape holes are required when the escape hole diameter is less than 3mm, otherwise the resin will not flow out and the cavity will not be cleaned, and the part may crack after a period of time.
(3) The size and quantity of escape holes shall be finally determined according to the model size and structure.
(4) The supports in the cavity cannot be totally removed unless the escape hole is designed to be large enough.
6. Holes design


7. Small column design


8. Special-shaped model

When it is designed as a special-shaped part and meets the printing requirements, a certain special cost will be appropriately charged.
9. 3D Printing Tolerances
Resin materials: ±0.2mm or within 0.3%
Nylon materials: ±0.3mm or 0.4%
316L : ±0.2mm or within 0.3%
ABS : ± 0.3mm or within 0.4%

10. Multiple same parts design
Max 10pcs same small parts could be supported in 1 file, but all the separate parts should be connected and combined in 1 large part (1 shell) to proceed and the wall thickness of the connection area should be more than 1.5mm. Please kindly note: FDM with ABS material and SLM with 316L material are not supported in this way.