ROBBO MINI Page 3 User Manual Download

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Table of Contents

1. Introduction

2. Purpose

3. Specifications

4. Contents of Delivery Kit

5. Structure and Working Principle

5.1. Physical Form

5.1.1.

Mounting base

5.1.2.

Print bed

5.1.3.

Z-axis sliding cradle

5.2. Printing Technology

5.3. Suitable Working Materials

6. Safety Instructions

7. Software

7.1. Description of Repetier-Host

7.2. Software Installation

7.2.1. For Windows

7.2.2. For Linux

7.3. Software Setup

8. Preparation for Work

9. Maintenance

9.1. Lubrication

9.2. Replacement of Filament

9.3. Notched Belt Tension

9.3.1. Pulling-up the Х-axis belt

9.3.2. Pulling-up the Y-axis belt

Summary of Contents for MINI

Page 1: ...ROBBO 3D PRINTER MINI User Manual ...

Page 2: ...2 ...

Page 3: ...orking Materials 8 6 Safety Instructions 9 7 Software 9 7 1 Description of Repetier Host 9 7 2 Software Installation 12 7 2 1 For Windows 12 7 2 2 For Linux 16 7 3 Software Setup 17 8 Preparation for Work 21 9 Maintenance 22 9 1 Lubrication 22 9 2 Replacement of Filament 22 9 3 Notched Belt Tension 23 9 3 1 Pulling up the Х axis belt 24 9 3 2 Pulling up the Y axis belt 24 9 4 First Launch 25 9 5 T...

Page 4: ...tensils etc Models for 3D printing can be found on dedicated websites such as https www thingiverse com 3 Specifications Power supply voltage 12 V Power consumption 100 W Working area dimensions X Y Z 170 100 100 mm Z axis layer resolution 0 1 0 3 mm Accuracy along the X and Y axis 0 01 mm Travelling speed along the X and Y axis 3 000 mm min Travelling speed along the Z axis 100 mm min Working ins...

Page 5: ... USB stick with software and setup Filament filter Power supply unit USB cable 5 Structure and Working Principle 5 1 Physical Form 3D printer consists of the following main units Mounting base shown in red colour Z axis sliding cradle shown in yellow Print bed shown in blue Guiding rods holder shown in green 5 ...

Page 6: ...nting base The mounting base of the 3D printer houses two stepped motors Y and Z and electronics compartment 5 1 2 Print bed Moving print bed consists of X axis stepped motor guiding rods and printing surface 6 ...

Page 7: ...nit of the 3D printer is extruder It heats up the plastic filament and extrudes the melted filament onto the print bed Extruder s motor feeds the filament into the extruder s pipe made of PTFE through which the filament gets into the chamber of the heater to be heated up to the melting temperature and poured through the nozzle under pressure The temperature in the chamber is kept high by the heate...

Page 8: ...atio ABS plastic would adhere such surface as well but it has drastic temperature shrinkage resulting in distortion of the model The extruder of our 3D printer has a short distance between the drive up cog wheel and the PTFE pipe supplying the plastic into the heating zone This enables printing with pliant plastics When melted plastics e g PLA can be mixed with various fillers i e powder of a soli...

Page 9: ... heater when the 3D printer is working Do not let foreign objects in moving parts and fans 7 Software ROBBO 3D PRINTER MINI runs the free and open source firmware Marlin https github com MarlinFirmware Marlin Free application Repetier Host is used as operating software https www repetier com Free application Slic3r is used to prepare the 3D model for printing http slic3r org 7 1 Description of Rep...

Page 10: ...Left side toolbar Toolbar on top Upper toolbar 10 ...

Page 11: ...r The right side toolbar contains five tabs with buttons 1 Object Placement 2 Slicer 3 Preview This tab shows the parameters of the ready model printing time number of layers approximate length of the filament needed 11 ...

Page 12: ...ns the distributions of the required software The software is free and you can also download the latest versions from the developers website The software is installed by two stages First to install is Repetier Host and the next is Slic3r 7 2 1 For Windows The installation steps are shown in the pictures 1 Run Setup exe 2 Choose the language that you prefer 12 ...

Page 13: ...3 Click Next 4 Tick the checkbox to accept the license agreement and click Next 13 ...

Page 14: ...5 Choose a folder for software installation 6 Choose the program components to install make your choice as shown in the picture 14 ...

Page 15: ...7 Create the shortcut to launch the program 8 Create such shortcut on the desktop too 15 ...

Page 16: ...of this Manual 7 2 2 For Linux To install Repetier Host unpack the archive in your home directory To do so you have to unpack it in the Home folder of your system Then the Slic3r folder should be copied from USB stick to the Repetier Host folder which you have just unpacked From the Repetier Host folder run the scripts Configure First and InstallDependencies 16 ...

Page 17: ...ly in the Printer Settings window For that click the Printer Settings button Copy the values from the picture below the Connection tab WARNING while choosing COM port the 3D printer should be connected Select COM port from the Port list then click Refresh ports and try again 3D printer will match the COM port that disappears on disconnecting USB 17 ...

Page 18: ...Copy the values from the picture the Printer tab Copy the values from the picture the Extruder tab 18 ...

Page 19: ...Copy the values from the picture the Printer Shape tab Congratulations you have configured Repetier Host Now we have to go to Slic3r settings 19 ...

Page 20: ... To load them go to the Slicer tab and click the Confuguration button In the window that opens select File then click Load Config Bundle and choose the file that contains the settings ROBBO_3D PRINTER_MINI_Slic3r_config_bundle on USB stick 20 ...

Page 21: ...ork The following is required to start printing 1 Plug in USB cable to the computer and then to the 3D printer 2 Connect power supply unit to the 3D printer and then to 220V main 3 Replace adhesive tape on the print bed if needed 4 Heat 3D printer up to operation temperature 220 С 5 To fill replace the filament see Section 9 2 6 Start Repetier Host 7 Prepare a model for printing 21 ...

Page 22: ... shaft will start reverse rotation The filament will be driven upwards instead of being squeezed through the nozzle 3 Upon completion of the 3D printer commands the filament will not be pressed to the feed shaft Take the filament out by your hand 4 Switch off the sustaining voltage of the motors using the button 5 Remove the dust filter 6 Open the filter and replace the polyurethane foam filter cu...

Page 23: ...d The check should be made as follows 1 Switch off the 3D printer 2 Put the X Y carriages in the rightmost position manually 3 Press the middle of the belt with the finger and abruptly release it The belt should vibrate for about 2 3 seconds with the amplitude 1 2mm 4 If there s no vibration or the amplitude is more than 2mm the belt should be pulled tight 23 ...

Page 24: ...irection 3 Pull the belt tight as required holding it with your hand 4 Tighten the tensioner screw 9 3 2 Pulling up the Y axis belt 1 Loosen the screw with the 7 size spanner 2 Pull the belt by your hand in the yellow arrow direction 3 Pull the belt tight as required holding it with your hand 4 Tighten the tensioner screw 24 ...

Page 25: ... C 5 Switch on the fan Increase the extruder temperature up to 175 C WARNING Be very careful as the temperature is extremely high Make sure that manual filament feed will not work until the extruder is heated up to 175 C 6 Check the direction of movement on Х axis Move the print bed in the position 10 mm using the X axis displacement control button The print bed should move on X axis in the direct...

Page 26: ...g Z axis accuracy Poor accuracy along the Z axis results in 3D printer malfunctioning The indications of the failure are as follows Too highly depositing the first layer the product does not adhere the print bed and tears away from the print bed while being printed Too strong adhesion of the first layer resulting in difficulties when removing the model from the print bed tearing off the adhesive t...

Page 27: ...zero point This issue is solved by adjusting the print bed height programmatically To do so 1 Connect the 3D printer to the computer 2 Launch Repetier Host and click the Connect button 3 Go to Config Firmware EEPROM Configuration menu entry 27 ...

Page 28: ... and enables to modify them in a quick and friendly way To calibrate the print bed position modify the setting in Homing Offset Z field The more negative is the value in this field the higher will be the nozzle position So if the adhesion is strong the value should be less and if the adhesion is weak the value should be greater 28 ...

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