2.1 Printable Parts Required for Mechanical Parts of Prusa Type Printers
1– Body 2- Y-axis spindle holder
3-Motor movement point 4- Z motion link
5– Z-axis spindle upper left 6- Z-axis spindle right upper
7– Z-axis motor connection 8– Z-axis spindle right lower
9– Z-axis spindle right lower 10– Y-axis belt connection
11– Flamen drive gear wheel 12– X-axis motor connection
13–Exhaust fan connector 14–Y-axis motor connection
2.2. Electronic Materials
2.2.1. Arduino Mega
Atmega2560 (datasheet) is an Arduino based card. There are 54 digital I / O pins. 14 of them are used as PWM output. 16 analog inputs, 4 UART (serial port), 16MHz crystal oscillator, USB connection, adapter input, ICSP output and a reset button. It is compatible with all shields designed for Arduino Duemilanove and Diecimila [7].
Thanks to the ease of programming and accessibility, it has become the brain part of the work.
Figure(a) - Arduino Mega source
2.2.2.Ramps (RepRap Arduino Mega Pololu Shield) 1.4
It is a control card that is used frequently in 3D printers. Ramps 1.4, which can be used with Arduino Mega model or many cards with similar pin arrangement; Shield structure allows Arduino to be mounted directly on Mega [8]. Motor drives, heaters, heat detectors and fans in operation ensure communication with Arduino via Ramps 1.4 cards.
Figure (b) Ramps (RepRap Arduino Mega Pololu Shield) 1.4 source
2.2.3.Motor Driver
These drives are used to control the speed and torque of a standard induction motor based on the industry [9]. It was used for driving motors in operation.
figure (c) Motor drive source
2.2.4.Limit Switchs
In other words, the border switcher is an electrical switch that changes the position of the electrical contacts mechanically driven by the contact of a moving mechanism. Any position switch of the limit switch contacts opens or closes after switching from open position to closed position or from closed position to open position [10]. In this work, the limit switch is used to prevent the system from detecting the maximum operating points and trying to move from that point forward.
Figure (d) Limit switchs source
2.2.5.Preparation Table
This plate, made of aluminum or copper, was used to prevent shrinkage of the part during printing.
figure (e) Heating table source
2.2.6.Handler Block
It was used to dissolve the raw material in the study.
Figure (f) Heater block source
2.2.7. Thermistor
In other words thermal resistance, resistance to temperature and conductivity (or resistance) is a kind of resistance. These resistors are used in temperature sensors, self-resetting overcurrent protectors and self-regulating heating elements [11]. The system in operation is used for the necessary heat detection.
Figure (g) Thermistor source
2.2.8.LCD Display
It is used for the operation of the machine in operation without connection with the computer.
Figure (h) LCD screen
2.2.9.Step Motor
In other words, stepping motors are called electromechanical motors which convert electric energy into rotational motion. These are motors driven by very sensitive signals that change the angular position in steps. Stepping motors move in specific steps. These steps are controlled by sending signals to the windings of the motor [12]. In the study Nemal 17 model stepper motor with 1.2 amp current and 1.8 degree rotation angle was used.
In many applications where position control is important stepper motors are used.
These ;
- CNC machines
- Laser cutters
- Holding and locating machines
- printers
- 3D printers
- Protective machines
- Hard drives
- Linear actuators
Figure (i) Nema17 Stepping motor source
2.2.10. Power source
In operation, 12V 30 amp standard led transformer is used. The ideal power source is 30 Amps.
Figure (j) Power supply source
to be continued. The software comes in Part 3 ... #steemstem
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