CNC muscular thrust (3D pantograph)

In today's world, in the community of people who love to do things with their hands and not shied away from technology, is extremely popular is such a thing as a desktop CNC machine. While these devices have become available and sufficient, but still remain expensive. The cheapest Chinese version, as of today, will cost you 700-800 of American money and it certainly does not work immediately out of the box, and will require an effort to bring it to mind. Manufacturing CNC machine alone can cost less, but usually requires access to all sorts of woodworking and metalworking equipment and skills with the help of manufacturing parts with high accuracy.

But people are always looking for ways to achieve the purpose of means available.
In some problems for CNC machine tools, namely when it is necessary to repeat many times the same item, can help even invented in 1603 Christoph Scheiner pantograph - a device for copying maps, plans and other vector graphics.



Classic pantograph consists of two peaks, one of which is fixed handle-pointer, with which encircle the copied image. The second fixed writing instrument which through a system of levers and hinges motion repeats the first vertex to the second copy of the drawing sheet. Often pantographs laid zoom function of the original image.

Simple and brilliant idea. Now, how to copy a three-dimensional object? To this must be added to the pantograph linkage along the Z-coordinate and replace pencil on a drill, and better high-speed spindle, and we get a 3D pantograph.



Machine tools for copying woodwork on this principle such as the US firm produces Gemini but only the price is such that this money can buy good CNC machine from China. It is therefore interesting that in this area reached DIY community.



Frank Ford (Frank Ford) is engaged in manufacturing acoustic guitars. At the same time he has to do a lot of identical guitar parts, such as holders for strings. Charter to do it manually, but not wanting to bother with buying and setting CNC, he made for himself duplicator . Because it was important high precision copying his instrument is made entirely of metal. Probe, which is removed form and spindle mounted on a common frame, which moves only along the axis Z. Move along X and Y are carried out with the help of the table on which are fixed workpiece. Another original in its design is that as the spindle it uses a pneumatic actuator operating at 40,000 rpm.

Nevertheless, even though it homemade, but still expensive option 3D pantograph. There are also cheaper.



For example Adra (Adran), dreaming of their own CNC machine, but without having the funds. Constructed from the drill itself duplicator Dremel, three metal rails and wooden planks in standard sizes from the store. As the probe uses ordinary screwdriver. Its design can be easily repeated, as He laid out чертежи and all stages of manufacturing online Instructables.



However, manual bormashinka, not the best tool for the job, the rate of material removal from her small. Here Matthias Wandel (Matthias Wandel) from Canada used in its 3D pantograph manual mill. Which gave him enough strength to quickly copy items in the tree. As an example of working with such a duplicator that's his video where he makes a copy of the old disk phone (English).



Its structure can also be repeated as he laid drawings and instructions for making to your site Woodgears.ca. Even if you're not friends with the English, it is easy to understand the whole process on numerous photographs.

If the topic you are interested in 3D pantographs, the English-language resources for examples of such devices can be found by tags: carving duplicator, duplicarver, pantorouter.

Source: geektimes.ru/post/249452/