Geeetech A20 User Manual
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Geeetech A20 User Manual

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SHENZHEN GETECH TECHNOLOGY CO., LTD
Geeetech A20 3D Printer
User Manual
(V3.00)
1

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  • Page 1 SHENZHEN GETECH TECHNOLOGY CO., LTD Geeetech A20 3D Printer User Manual (V3.00)

  • Page 2: Table Of Contents

    SHENZHEN GETECH TECHNOLOGY CO., LTD Content 1 Attention ..........................4 1.1 Safety instructions ....................... 4 1.2 Factory test before delivery ..................4 2 Machine parameters………………....................5 3 Packing list……………………………………………………………………………………………………….…….……….…6 4 Machine Overview ……………………………………………………………………………….…………………………..7 5 Assembling ..........................8 5.1 Assembling the main frame ..................8 5.2 Wire connection ......................
  • Page 3 SHENZHEN GETECH TECHNOLOGY CO., LTD Thank you for choosing Geeetech products! [Important] Please read the instruction manual carefully before using this machine. Official site: https://www.geeetech.com/ Email us for technical support: https://www.geeetech.com/contact_us.htm Facebook Group:...

  • Page 4: Attention

    SHENZHEN GETECH TECHNOLOGY CO., LTD 1 Attention 1.1 Safety instructions • Please switch to the correct local voltage (110V-220V) before turning on the printer. Be sure the switch is in the correct position or it will damage the power supply unit (PSU). •...

  • Page 5: Machine Parameters

    SHENZHEN GETECH TECHNOLOGY CO., LTD 2 Parameters • Printing parameters Printing technology: FDM Printing volume: 250*250*250mm Printing accuracy: 0.1~0.2mm Positioning precision: X/Y: 0.011mm Z: 0.0025mm Printing speed: 60mm/s Nozzle quantity: 1-in-1-out single nozzle Nozzle diameter: 0.4mm Filament: Diameter 1.75mm; ABS/ PLA, etc Environment temperature: 10℃-40℃...

  • Page 6: Packing List

    SHENZHEN GETECH TECHNOLOGY CO., LTD 3 Packing list Please check the parts/accessories when you receive the printer (As shown below). If any spare parts are missing, please contact your sales representative. Gantry kit Bottom kit Filament holder kit Filaments（1 random Nozzle*2 Teflon tube &...

  • Page 7: Machine Overview

    SHENZHEN GETECH TECHNOLOGY CO., LTD 4 Machine Overview (Picture 4-1) (Picture 4-2) (Picture 4-3) (Picture 4-4) G antry frame L CD12864 screen K nob R eset button Y axis Bottom kit Z axis ○ ○ ○ ○ ○ ○ ○ end stop X axis end stop Filament holder kit...

  • Page 8: Assembling

    SHENZHEN GETECH TECHNOLOGY CO., LTD 5 Assembling 5.1 Assembling the main frame The main frame consists of the gantry kit and the bottom kit, filament holder, and screws. See picture (5-1). Gantry kit Bottom kit Filament holder kit Machine installing screws Tool kit (Picture 5-1) •...

  • Page 9: Wire Connection

    SHENZHEN GETECH TECHNOLOGY CO., LTD (Picture 5-3) 5.2 Wire connection • Insert the Teflon tube into the quick-insert connector of the extruder. Details see picture (5-4). (Picture 5-4) • Plug the extruder cable into the socket of the extruder head adapter plate, and the buckle must be fastened.
  • Page 10 SHENZHEN GETECH TECHNOLOGY CO., LTD (Picture 5-5) • Connect the motor wires of E0. See picture (5-6). (Picture 5-6) • Then the extruder wire and the motor extruder wire are fixed into the small hole on the backside of the screw with the Cable tie to avoid the wire harness touching the model during printing.
  • Page 11 SHENZHEN GETECH TECHNOLOGY CO., LTD • Connect the wires of X axis’ motor and end stop. See picture (5-8). (Picture 5-8) • Connect the wires of Y axis’ motor and end stop. See picture (5-9). (Picture 5-9) • Connect the wires of Z axis’ motor and end stop. See picture (5-10). •...

  • Page 12: Check The Power Input Mode

    SHENZHEN GETECH TECHNOLOGY CO., LTD 5.3 Check the power input mode The factory default voltage is 230V. You need to choose the correct voltage according to your local standard requirement. See picture (5-11) Note: Be sure the voltage is switched to the correct one. (Picture 5-11) 5.4 Check the filament Put the filament on the spool holder.
  • Page 13 SHENZHEN GETECH TECHNOLOGY CO., LTD (Picture 5-12) Since the filament is bent, the first section of it needs to be straightened by hand and trimmed to make it easier to insert the filament into the feeder. Press down the lever handle of the extruder and insert the filament into the feeding tube until it reaches the extruder head.
  • Page 14 SHENZHEN GETECH TECHNOLOGY CO., LTD (Picture 5-13) When print PLA, set the target nozzle temperature about （190~210℃） . When the temp is stable, control the extruder filament feeding on LCD screen (“Move axis”), feed until there is molten material flowing from the nozzle. Observe the nozzle, if there is no filament stuck and the filament is coming out smoothly, then stop filament feeding, clear the nozzle with tweezers.

  • Page 15: First Print

    SHENZHEN GETECH TECHNOLOGY CO., LTD 6 First print 6.1 Level the print bed The first layer is basis to a successfully printed model. The factory default setting is a little high in order to avoid scratching the hotbed with the nozzle, so users need to adjust the distance between nozzle and hotbed again.
  • Page 16 SHENZHEN GETECH TECHNOLOGY CO., LTD (Picture 6-3) • Accurate leveling If you level the bed with A4 paper, the first layer maybe too high, too low or moderate. a. Too high: the distance between the nozzle and bed is too far, which may cause the filament to not stick or not stick well.

  • Page 17: Tf Card Printing

    Avoid the nozzle touching the bed; use a piece of A4 paper. Or it will scratch the bed. For more details, please refer to this link: http://geeetech.com/forum/viewtopic.php?f=112&t=62296 6.2 TF card printing Insert the TF card into the slot. See picture (6-8).
  • Page 18 SHENZHEN GETECH TECHNOLOGY CO., LTD (Picture 6-9) Choose the files in the TF card. See picture (6-10). (Picture 6-10) The printer will heat automatically. When heating done, the printer will start printing until the print is complete. See picture (6-11).
  • Page 19 SHENZHEN GETECH TECHNOLOGY CO., LTD (Picture 6-11)

  • Page 20: Introduction To The Lcd Menu

    SHENZHEN GETECH TECHNOLOGY CO., LTD 7 Introduction to the LCD menu 7.1 Tree diagram (Picture 7-1) 7.2 Main functions LCD rotating knob: • Press the knob: Confirm or enter the next menu. • Rotate the knob: Roll the select options or change parameters. LCD homepage, see picture (7-2): Extruder temperature: Current temp/target temp...
  • Page 21 SHENZHEN GETECH TECHNOLOGY CO., LTD Hot bed temperature: Current temp/target temp Extruder head blower status Current coordinate value Printing process Current printing info Feed rate: Current printing speed (Picture 7-2) Note: Rotating the knob can change the printing feed rate during printing. We suggest users not changing the feed rate too much or it will make the motors to skip caused by too fast speed and affect the print quality.
  • Page 22 SHENZHEN GETECH TECHNOLOGY CO., LTD • Preheat PLA: Manually pre-heat the hot bed and extruder before printing PLA. • Preheat ABS: Manually pre-heat the hot bed and extruder before printing ABS.  (Picture 7-4) (Picture 7-5) The main functions of Control menu (Picture 7-6, 7-7): •...
  • Page 23 SHENZHEN GETECH TECHNOLOGY CO., LTD Choose “Auto home” to home the printer, see picture (7-9). (Picture7-9) Choose “Move axis” to move motors. See picture (7-10) (Picture 7-10) Choose from “Move X/Y/Z/Extruder” and rotate the knob to move them. See picture (7-11). (Picture 7-11) Choose “Move 1mm”, see picture (7-12).

  • Page 24: Software Setting

    USB printing prone to fail. So we suggest choosing TF card printing. The details of USB printing are as follows: Firstly, turn on the printer, and connect the printer to computer with a USB cable. Normally, the computer will automatically search the install driver. The newest communication chip of A20 is...
  • Page 25 If it shows the exclamation mark as picture below (8-2), then you need manually install the driver. (Picture 8-2) Download link for CH340: https://www.geeetech.com/index.php?main_page=download&download_id=40 After the driver is installed, check the “Device manager” and see if it is same as the picture below (8-3). If so, it means the driver is successfully installed.

  • Page 26: Install Slicing Software

    SHENZHEN GETECH TECHNOLOGY CO., LTD (Picture 8-3) 8.2 Install slicing software Repetier-Host is the default slicing software here. Download address: https://www.repetier.com/download-software/ • Set printer parameters When Repetier-Host is installed, turn on the printer and open the Repetier-Host. Repetier-Host supports several languages. You can choose your native language from Config>Language (Picture 8-4 for details).
  • Page 27 SHENZHEN GETECH TECHNOLOGY CO., LTD English interface for your reference (picture 8-5). (Picture 8-5) Using the Repetier-Host for the first time, printer parameters need to be configured before connecting. Click “Printer settings” on the top right corner, see picture (8-6). (Picture 8-6) The following window pops up, and you can fill in according to the contents of the label.
  • Page 28 SHENZHEN GETECH TECHNOLOGY CO., LTD (Picture 8-7) b. Printer dialog (Picture 8-8): Do not check "Return to the parking position after the end of the task interruption" to prevent the machine from damaging the model after the end of printing. (Picture 8-8) c.
  • Page 29 SHENZHEN GETECH TECHNOLOGY CO., LTD (Picture 8-9) d. Printer shape dialog (Picture 8-10): (Picture 8-10) Now the printer parameters are set. Note: If the operating system is Mac OS, Repetier Host baud rate is also set to 250,000. • Set slicing parameters After setting the printer parameters, click “Connect”...
  • Page 30 SHENZHEN GETECH TECHNOLOGY CO., LTD changed to green means the printer connects to the Repetier-Host successfully. Click it again to disconnect. See picture (8-11). (Picture 8-11) After successfully connected, choose “Slicer> CuraEngine” and open the configuration menu. See picture (8-12). (Picture 8-12)
  • Page 31 Here we provide a configuration file for your reference (“Geeetech A20 PLA high.rcp”). You can import it according to the steps as follows, this file can be downloaded from the official website. The following is an example of parameters for PLA (Picture 8-14): Click “Print>Import”...
  • Page 32 SHENZHEN GETECH TECHNOLOGY CO., LTD (Picture 8-15) Now, the configuration file is imported, click “Save”. See picture (8-16). (Picture 8-16) Click “Filament>Import”, see picture (8-17).
  • Page 33 SHENZHEN GETECH TECHNOLOGY CO., LTD (Picture 8-17) It pops up dialog as below (Picture 8-18); choose “Geeetech A20 PLA high fi.rcf”. (Picture 8-18) Now, the configuration file is imported. Click “Save”. See picture (8-19).
  • Page 34 SHENZHEN GETECH TECHNOLOGY CO., LTD (Picture 8-19) Choose “Geeetech A20 PLA high” as print configuration and “Geeetech A20 PLA high fi” as printing material setting. Details see picture (8-20) below. (Picture 8-20) Now parameters setting are finished.

  • Page 35: Usb Printing

    SHENZHEN GETECH TECHNOLOGY CO., LTD 8.3 USB printing You can start USB printing when the parameters setting are finished. The model file format is .stl for 3D printer. You can download free models from websites such as thingiverse. can also design your own models. •...
  • Page 36 SHENZHEN GETECH TECHNOLOGY CO., LTD (Picture 8-23) Adjust the direction of the model so that the flat part of the model is touching the hot bed. See picture below (8-24): (Picture 8-24) Note: If the model loaded is too big and beyond the printing platform, you need to zoom out the model.
  • Page 37 SHENZHEN GETECH TECHNOLOGY CO., LTD (Picture 8-25) Or zoom in/out them separately, see picture (8-26). (Picture 8-26) Model slicing  After setting the model size and direction, select the previously imported slice parameter settings in the slice software window, and then click “Slice with CuraEngine”. See picture (8-27), (8-28).
  • Page 38 SHENZHEN GETECH TECHNOLOGY CO., LTD (Picture 8-27) (Picture 8-28) You can find the model information such as estimated print time, the amount of filament needed, etc. Click “Print” to start USB printing. Refer to picture (8-29). The printer will heat to the target temp and then start printing. Under high temperature, the filament will flow out of the nozzle, which is normal.

  • Page 39: Tf Card Printing

    SHENZHEN GETECH TECHNOLOGY CO., LTD (Picture 8-29) 8.4 TF card printing When all parameters are set, click “Save for SD print”. It will pop up a dialog as picture below (See picture 8-30) and then click the save button to generate a .gcode file. Copy the gcode file to the TF card.

  • Page 40: Function Introduction

    9 Function introduction 9.1 Power loss-resuming capability A20 has the power loss-resuming capability. When power recovery starts, it will pop up a dialog to ask if continuing the unfinished print caused by power outage, choose “Resume print”. See picture (9-1).

  • Page 41: Reset Button

    SHENZHEN GETECH TECHNOLOGY CO., LTD • Be sure to clean the residue in the nozzle before restarting the print or it would affect the quality of the print. 9.2 Reset button The reset button is below the knob. When the printer works abnormally, press the reset button to reset the printer to avoid any damage.

  • Page 42: Touch For Auto Bed Leveling (Optional)

    SHENZHEN GETECH TECHNOLOGY CO., LTD (Picture 9-5) (Picture 9-6) 9.4 3D touch for auto bed leveling (Optional) This printer supports auto bed leveling. Refer to the link below to know how to install the 3d touch sensor. https://www.youtube.com/watch?v=_RtsZDbR2po&t=66s Visit our official forum http://www.geeetech.com/forum/...

  • Page 43: Faq (Frequently Asked Questions)

    SHENZHEN GETECH TECHNOLOGY CO., LTD 10 FAQ (Frequently Asked Questions) 10.1 Abnormal extrusion • The filament is tangled • The nozzle temp is too low to reach the melting temperature required. • There is carbonized residue inside the nozzle. Please replace it with the spare nozzle •...

  • Page 44: Print Stopped

    • The quality of the card is poor. Please try another card. • The power supply voltage in the area is not stable; please print after the voltage is stable. Visit our official forum for more information: http://www.geeetech.com/forum/viewtopic.php?f=98&t=61864...

  • Page 45: Declaration

    Geeetech assumes no responsibility, nor will be liable, for any damages to, or any viruses or malware that may infect your computer, telecommunication equipment, or other property caused by or arising from your downloading of any information or materials related to Geeetech products.
  • Page 46 SHENZHEN GETECH TECHNOLOGY CO., LTD Shenzhen Getech Technology Co.,ltd www.geeetech.com...

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