Everything control software 3D printer is added to the model rozřezanému addition, there are additi

You do not have to be a rocket engineer, or you do not have to play it - and still today you can build a fairly cheap own 3D printer. Just the internet to find all the necessary instructions to get all the necessary parts and put into it. It helps you to our miniseries in which all worn impasse.
The series How I built a 3D printer RSS How I built a 3D printer: the construction of the frame, as I built a 3D printer: extruder filament How I built a 3D printer: Electronics How I built a 3D printer: firmware and work with your printer All episodes
Glossary CSG (Constructive Solid Geometry) method for modeling 3D objects using addition, subtraction food carts for sale and intersection of G-code programming language used numerical control machines filament string of print material cutting slicing 3D models into 2D layers Introduction
The technology of 3D printing and 3D printers are nowadays mainly used for fast prototyping. The whole process food carts for sale from design new components to the printed prototype, which can immediately test is very straightforward.
The printing process can be divided into three stages: modeling (red) - CAD (computer-aided design) production (yellow) - CAM (computer-aided manufacturing) internal processes (green) in different parts of the 3D printer food carts for sale (electronics, engines ...)
As shown in the diagram 3D printing process, each activity of each stage of 3D printing is available more programs. List the picture is far from complete. At each stage, the designer has the opportunity to immediately check intermediate results.
First, it is necessary to obtain 3D model. The designer can design the specialist software food carts for sale or you can create food carts for sale it any other way - for example, using a 3D scanner. Currently food carts for sale working with RepRap 3D printer type commonly used modeling program OpenSCAD, a CAD system controlled by a specific programming language that describes a body designed food carts for sale using CSG. The output stage is a 3D design 3D model that can easily handle other programs. For simplicity, therefore, uses the STL format, which contains a boundary representation of the object food carts for sale modeled by means of triangular meshes. food carts for sale
The finished 3D model boundary representation is needed, then cut into individual horizontal layers and layers determine the path of the printer head. The height of each layer is one of the important parameters of precision 3D printing and is typically a few tenths of a millimeter. For each layer is then determined food carts for sale by a suitable route heads over this layer and where and at what speed should occur injecting molten plastic. Although the role of cutting the 3D model layer is an elementary geometric problem of finding the optimal path printhead is a complex problem that already requires the knowledge of the properties of the material which will be printing. For cutting food carts for sale up the model and find ways heads became common, the term "slicing" - ie cutting. Slicing The result is a set of commands with G-code.
Shredded model can theoretically be sent directly to the control electronics of the printer firmware, in practice, this procedure is inadequate. The printer is needed before each print (preheating, calibration os, etc..) And it is good to be able to track the progress of printing. In case of problems can then print suspend or cancel in time and again. For this purpose, food carts for sale the control software 3D printer. In the diagram we see two popular programs used for this purpose. A typical representative of the graphical control program for 3D printers is "pronterface", which is written in Python using a set of graphic products Gtk +. Nowadays it is very popular to solve problems in the form of a web application - program "octoprint" is just such applications. Although it may seem very impractical to control 3D printer using a web application, it is important to realize food carts for sale that the typical printing food carts for sale components often take a long time, and web applications can be connected camera. It is therefore possible to control the printing remotely food carts for sale and is not necessary for the operator to physically sitting at the printer.
Everything control software 3D printer is added to the model rozřezanému addition, there are additional control sequences food carts for sale G-code before and after the print itself, or is interleaved between food carts for sale the G-code commands caused by cutting. food carts for sale Firmware electronics 3D printers processed sequentially each G-code commands while a similar G-code control food carts for sale software sends status or other requested information.
Microcontroller Electronics 3D Printer performed food carts for sale based on the G-code commands sent to different food carts for sale types of signals - typically full PWM or voltage - to individual peripherals 3D printer. A separate stepper motors which microcontroller does not speak directly, food carts for sale but using a stepper motor drivers that based on the control pulses from the microcontroller generates the necessary complex pulses used for excitation of these engines.
Using a stepper motor moves the print head after a print surface - in fact, throughout the print volume - while shifting plastic filament in the head, which takes place controlled injection of molten plastic on the printed product. This process is completed and after all the commands are carried out G-code is