3D printing limb model self-adaptive hole drilling weight reduction method based on skeleton line guidance
By adopting an adaptive drilling method based on skeleton lines, the problems of heavy weight and insufficient structural strength of 3D printed limb models are solved, achieving synergistic optimization of lightweighting and structural strength, and improving drilling efficiency and the rationality of hole layout.
CN122113186APending Publication Date: 2026-05-29CHENGDU JINGCHUANG HAODA MEDICAL TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHENGDU JINGCHUANG HAODA MEDICAL TECH CO LTD
- Filing Date
- 2026-02-03
- Publication Date
- 2026-05-29
AI Technical Summary
Technical Problem
Existing medical 3D printed limb models suffer from problems such as large weight, high material costs, long printing cycles, and unreasonable hole layout, resulting in insufficient structural strength and poor visual consistency.
Method used
An adaptive drilling method based on skeleton line guidance is adopted. The skeleton lines of the limb model are extracted, sliced and hole positions are selected, the direction cosine matrix is used to align the hole direction, and Boolean difference operation is performed to generate the hole mesh model.
Benefits of technology
It achieves lightweighting of limb models, improved structural strength and visual consistency, and significantly improves drilling efficiency and the rationality of hole layout.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122113186A_ABST
Abstract
The application discloses a kind of based on skeleton line guide's 3D printing limb model adaptive punching weight reduction method, it is related to 3D printing technical field, comprising the following steps: S1, extraction closed limb triangular mesh model skeleton line;S2, along skeleton line is sliced, determines the hole site of each layer cut plane;S3, the hole site of each layer cut plane is cooperatively screened;S4, using direction cosine matrix is aligned to the hole type direction after cooperatively screened hole site;S5, based on the hole type direction after aligning hole site, generate hole type grid model, and with closed limb triangular mesh model is carried out Boolean difference set operation, output result model, carries out punching.The application supports multiple hole types, and is suitable for different morphological limb models such as arm and leg.
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