Today, we want to 3D print a usable Chinese ancient lock (wide lock), leading everyone to use digital manufacturing tools to restore this ancient skill. Experience both engineering thinking and STEM learning.
First, this article can be learned
1. What is the principle of ancient Chinese locks;
2. How to design and make a traditional Chinese lock with 3D printing.
Second, the list of materials and tools
3D design software (such as 123D, Solidworks, etc.)
3D printers and supplies
3D printing slicing software (such as Crua, etc.)
China ancient lock 3D printing source file (download the text at the end of the QR code, you can download it)
Third, knowledge supplement
Ancient Chinese lock types can be divided into reed construction locks (with text combination locks, and reed locks can be divided into two types: wide lock and Citi lock. Wide lock is the most common reed lock, "wide lock "The meaning of the horizontal lock, "Thirteen Classics" said: things are round, north and south is wide, "words" interpreted as: north and south for vertical, east and west for horizontal. Guang lock since the Tang Dynasty, widely used in the door There are more than one hundred kinds of boxes, kitchens, cabinets, etc. These locks are abundant in Shaoxing, Zhejiang Province, and they are also known as "Shao Lock". The folks call it "cross-lock" and "pillow lock".
Fourth, the production process
To design and make a usable Chinese ancient lock, we must first understand the structure of the ancient lock. The horizontally inserted "wide lock" is a common reed lock. The reed lock structure is very simple. There are three main parts: the lock body, the key, and a lock bolt composed of the lock beam and the shrapnel and the lock stem.
The lock body is a concave-shaped box with a key slot on it, which can contain the entire lock bolt and allow the lock bolt to move left and right.
The bolt is slightly more complicated. In addition to the exposed "lock beam" part, there must be a reed hidden in the lock body. The reed has two forms, four pieces, eight pieces, etc., and the top of the reed. Fixed on the lock stem, the tail end is bounced, naturally stuck on a "door" on the inner wall of the lock. To open it, just insert the key so that the key head flattens the reed and it can be squeezed out of the "door" and the active latch.
The lock body is a hollow box with a concave shape, and the lock beam on the lock bolt has a hollow structure in order to reduce weight and increase strength. For the reed, for the sake of simplicity, we design two pieces, which are printed directly with the lock stem. In order to reduce the weight and simplify the structure, the bottom of the bolt is empty.
The key is the most interesting part of the Chinese ancient lock. The keyhole has various odd shapes: one-shaped, cross-shaped, herringbone, and even hi-shaped. This requires the designer to make an article on the key and shape it. The axe is an inverted glyph. Although it is a simple one-line deformation, it needs to be inserted in a specific posture.
Understand, will not design? It's ok!
(Editor: HN666)
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