MINI CNC ENGRAVING MACHINE

Abstract

The puipose of this research was to designing and fabrication a Computer Numerical Control (CNC) based mini CNC engraving machine. The idea behind this research was to help the traditional woods craft more productive and more efficient. The mini CNC engraving machine that is made is driven by the driver in the ' form of a stepper motor, with a 3 axis motion so that the results of wood engraving obtained are precision and homogeneous. G-code program used on CAM processing uses UNO R.3 software. The workspace of the machine was 800 mm x 500 mm. The stepper motor driven withTB 6600 driver and combined with ball screw on linear bearing to make the motion more precisely. The test result showed that the machine accuracy is about 99.5 percent for X and Y axis and 96 percent for Z axis.

Specification

PREAMBLE TO THE DESORPTION
The processes of producing wood crafts still use the machine with manual operation. This manually production requires more time and energy, thereby reducing the productivity and profitability of wood craftsmen. Computer Numerical Control (CNC) is the automation of machine tools that are operated by a computer controlled programs to perform a desired product shape. Design and fabrication of milling machine using CNC has been done with ATMEGA 328 micro controllers in an Arduino. The test result showed that the milling machine can be used in acrylic, wood, aluminium wjth accuracy 0.02mm . Design of A CNC prototype machine was designed, with three Cartesian axes, with 600 mm of length both X and Y axes and 100 mm of length Z axis. The software use Lab LASER Z. Study on Computer Numerical Control (CNC) machines for fabrication of rollers also done, various processes like facing, turning, parting, drilling, boring and knurling to improve production in order to decrease the production time and also to increase the efficiency in conventional lathe and CNC machines by writing the program on STC-25 CNC lathe. A mechanical prototype of a CNC Router which is able to draw a PCB layout and wood engraving has been build. The other research of the ' design, implementation and performance test of CNC has also been done by many researchers using different software. Research about accuracy of CNC feed has been done. Low cost CNC machine for Industrial application and also for engraving machine has been design and build. The designed system is user -friendly one which give accurate results and also flexible to users. Implementation 3-Axis CNC Router for Small Scale Industry and CAM courses has been done. Both of them uses stepper motor and the results showed a good accuracy especially for the depth accuracy which is almost 100%.

We Claim
1.The router machines that has been build was controlled by CNC program using UNO R.3 for the software.
2.The mechanical systems of CNC machine build with low-budget material with a good quality.

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