User Guide
Contents
1. 30 5 3 DIMENSION cc a 30 OTHER ELECTRONIC Sd A A Uds aud os p LEN NO EUEe 31 UserGuide V2 Page 3 of 44 T 8 10 6 1 EXTRUDER HOT END 6 2 PSU POWER SUPPLY UNIT AND ELECTRICAL GOOD SIZING SOFTWARE 7 1 ARDUINO SOFTWARE simmarna n a taa 7 2 REPETIER 7 3 MARLIN UserGuide V2 ooznest Page 4 of 44 1 Introduction These products were directly inspired by things found in the RepRap communities and are the consequence of a continuous improvement effort My first printer was a Rostock mini that had cloned At that time had no knowledge about 3D printers but found the idea of printing a toy for my son so awesome that wanted to learn more about the subject was indeed impressed by the printing result when after months was finally able to breathe life into my Rostock Mini However when measuring the printed objects with the calipers the disillusionment came Then l ve built my second delta built with a similar result Only now began to think How do get a reliable quality print result What mechanism is stiff enough to not only to be accurate but also able to handle fast printing What do need to achieve these goals And so on As a mechanical engineer quite quickly had a rough idea for the mechanics of a clever delta printer design Now what do need to achieve an acceptable position accuracy precision First had to2. 7 2 Repetier You can configure and download Repetier firmware using the Repetier Firmware Configuration tool http www repetier com downloads If you use the Repetier host software to control your printer and your printer is acting strange you get communication errors you may have to alter a setting in the Repetier Host software 1 Start Repetier host 2 Click on the Printer Settings icon 3 Alter the Receive Cache Size value from 127 to 63 7 3 Marlin https github com bobc Marlin tree Marlin v1 https github com Wurstnase Marlin4Due Marlin4Due is a further development of bobc s version It is faster and many of the 8 bit limitations are eliminated Current status Very limited testing Only a small subset of functions have been tested Testers should watch out for anything going wrong including unexpected head movement program hanging and runaway UserGuide V2 ooznest Page 40 of 44 8 Appendix B Web links e Martin Henschke http www dr henschke de RADDS due html e RADDS documentation forum wiki http doku radds org nb e max3dshop http max3dshop org e RepRap RADDS wiki http reprap org wiki RADDS e Arduino DUE http arduino cc en Main ArduinoBoardDue e Arduino software http arduino cc en Main Software e RADDS case for OrdBot http www thingiverse com mundsen designs e RADDS LCD Case http www dr henschke de LCD_ Box zip e hingiverse RADDS group http www thingiverse com g
3. RAPS128 RADDS Power Stepper Driver with 1 128 Microstepping HALL E LCD DISPLAY Hall Effect Endstop RADDS LCD Control Panel Next Generation 32 Bit RepRap Set EY We SA ATTRIBUTION NONCOMMERCIAL SHAREALIKE 3 0 UNPORTED CC BY NC SA 3 0 UserGuide V2 ooznest Page 2 of 44 Table of Contents 1 6 INTRODUCTION oda 5 RADD o A A E MEM 6 2 1 FEATURE Sarom n a a NUMINI M ME SI a a a a A 6 2 2 NTE TING AGRA ada oa 8 2 3 FIN DEFINITIONS AND DIMENSION Sui ai acia 9 2 4 SEP MIGROS TER PING MODE Ecol Me CHAM 10 2 5 INSTALL STEPPER DRIVERS LIKE A4988 DRV8825 OR RAPS128 esses 14 2 6 CONNECT STEPPER MOT ORS a 15 2 1 CONNECTEND STOPS aida 18 2 8 EXTENSION BOARD cc setae cebat AL IE AUS P I Casu iL MeL CC EE Aud 19 2 9 ARDUIN CD Eie UM ML EM LM MEM a ect 20 oo 20 A T TS 21 3 1 iz i PA 21 3 2 VERSION TRACKER c 22 S MERI cce rc 22 O4 ADJUST UV REF coa 23 3 5 ADJUST DECA Vd ocio 23 gl BE ap Rec PC E EE 24 4 1 fey 00 ic rr TEE A Ree 24 4 2 dccem Kr p A EE 24 4 3 PIN DECI ON Sd o lt datado 25 4 4 DIMENSION Soler dolo n M qd M MA AL M ME MAL LUE 25 4 5 MAGNET DEACENMENT tt tdo sae Eo iriure 26 4 6 OPTION FOR EXTRA ACCURATE ADJUSTMENT c 0sccescceeceeeceeeceeecceecseesececeeeseeeteeeseeseeeteeeteeees 2f LOD PANE s itecto eti cud dct UD eden E taste mud 29 5 1 mz 8l rM 29 5 2 LA STIS CNN EROR OR
4. according to me is the poor quality of some heated bed who can t reach target temperatures In this case you could most of the time make them working with a little more volts it means 24V power supply PWM modulation in order to reduce voltage down to 14v 15V It may boost a weak heated bed Other reason is if you often need high temperatures lot of ABS nylon or you do not like to wait too much time for pre heating 24V Power supply with 24V components bed hotend because power will actually be four times higher twice V and twice A If you use 12V 40W hotend current will be 3 3A With 24V 40W hotend current will be only 1 7A Therefore you do not need to resize your wires and it will be more power efficient with a bit less electrical losses There are much ways to supply power to RADDS according what you need UserGuide V2 Page 33 of 44 6 2 3 12V PSU Standard 12V PSU setup Used most of the time should be reliable for most of the purposes Everything is powered with the same 12v PSU Initial choice with an ATX PSU Heated bed 12V 12V Power Supply Power Supply for jeuo V eowo V heated bed only JO SILUJOY Power Supply for stepper Heater Hotend DUE Hotend UserGuide V2 ooznest Page 34 of 44 6 2 4 24V PSU Alternative 1 With this setup you use a 24V PSU to power the printer instead of standard 12v RADDS allows you to supply it with 10V 25V so you can directly plug it o
5. e THB6128 chip e Motor voltage 10 25V e Motor current O to 2 2 A adjustable via potentiometer V REF e Motor decay adjustable via potentiometer Decay e Sleep and Boost Mode e Logic voltage is generated from the motor voltage e Upto 128 micro steps possible recommended maximum of 32 micro steps for 8 bit electronics such as Arduino Mega with RAMPS e Short Circuit Shutdown e Pre installed heat sink e he size corresponds to the popular Pololu drivers and the pinout is compatible but not identical e Max 1 128 micro stepping when used in combination with RADDS or other 32 bits controllers that supports 1 128 micro stepping e Can be used on RAMPS rumba and other RepRap electronics but 8 bit electronics usually are too slow for 1 64 and 1 128 micro stepping CAUTION Inverted activation signal Enable HIGH at Pololu drivers enable LOW invert in firmware UserGuide V2 Page 21 of 44 3 2 Version Tracker V1 This is the first RAPS128 V2 C1 change from 10 uF to 0 1uF 3 3 Wiring 3 3 1 Minimal pinout 10 25V Microcontroller Power Supply 3 3 2 Maximum pinout 10 25 V EN f va EL oL BN 100 pF MS E 2 g M cno 101 0 3 3 5 V Microcontroller Power Supply UserGuide V2 ooznest 3 4 Adjust V REF abo o0o0600onoooooolli Ground V ref pot wiper Li 000000000000 H amp t DR NEAR The arrows indicate the measureme
6. you have to set the micro stepping mode using the dipswitches on the back of the RADDS board 12U in Bed Fani Fang H2 Hi HO ME P NP M EF NP ME DD mA A A A Am a i O47 D5 D r A D8E E OSF e e22 Z2 2288 228 gaa 3382 Fee ON OFF gt gr g e e Ge s De D Ge d gt O 12 MS1 2 MS2 3 M53 A4988 DRV8825 RAPS128 Med Off Off Off Off Off Off 1 1 2 1 4 1 8 1 16 1 32 1 64 1 128 In the table you find the different stepping modes for usual drivers UserGuide V2 ooznest Page 10 of 44 When using the DRV8825 the combinations HLH LHH and HHH all gives 1 32 STEP Off Logic low level not connected or ground On logic high level 2 5V When altering the stepping mode you have to separate the RADDS board from the Arduino DUE UDOO QUAD because dipswitches are hidden under the RADDS board By using this tool you can remove the RADDS board without making any damages Download STL and OpenSCAD files using this URL http www dr henschke de demount zip UserGuide V2 Page 11 of 44 2 4 1 Micro stepping A stepper motor always has a fixed number of steps Micro stepping is a way of increasing the number of steps by sending a sine cosine waveform to the coils inside the stepper motor In most cases micro stepping allows stepper motors to run smoother and more accurately Micro stepping between pole positions is made with lower torque than with fu
7. Zmin Xmax Ymax Zmax 5 thermistors and an ADC 3 servomotors I2C SPI CAN DAC RS232 and 8 digital pins available via pin strips Additional Features EEPROM Control LEDs for loads and operation voltage Catch diodes on the MOSFET s Car fuses instead of thermo fuses Variable input voltage can be supplied from 10V up to 25V Heatbed electronic control supports up to15A without a heatsink Premium screw terminals 12bit ADC analog to digital converter upgraded from 10 to 12 bit Now temperature calculation is done on 4096 measure points instead of 1024 what give a read temperature with 4x better resolution Combined to a new firmware algorithm that uses 660 measure points to extrapolate results a new level of accuracy is reached for reprap temperature control UserGuide V2 ooznest Page 6 of 44 Version Tracker 2 1 1 RADDS 1 First edition with 8 pin SD extern connector 2 1 2 RADDS 1 1 2 pins for reset and back button LCD added 10 pin SD extern connector 2 1 3 RADDS 1 2 DC DC converter added for 10 25 V power supply 2 1 4 RADDS 1 5 Several layout changes for more stable temperature reading e Heated bed connection separated e Motor ground separated up to the green connector e Hotend ground separated up to the green connector e Better shielded coil at the DC DC converter and coil moved away from ADC lines e 220 UF at 3 3 V line added for Due clones with unstable 3 3 V supply e 100 uF capacitors changed
8. solve the electronics and started googling to find a way to achieve what want In the German RepRap forum stumbled on a little known solution made by Dr Martin Henschke The RADDS Shield It is a daughterboard for the 32 bit Arduino Due similar to the RAMPS the 8 bit daughterboard for Arduino Mega However this solution offers much more calculation power then the current 8 bit CPU plenty of power Although it was a beta and prototype state it seems to be well working just thought it might work want a controller like that However have a big problem have no idea of electronics and certainly do not know anything about soldering now what A long odyssey began but now it is done Now you can simply order the RADDS Shield associated components and bless your printer with it Enough said for now Have Fun Angelo UserGuide V2 Page 5 of 44 2 RADDS 2 1 Features This guide describes RADDS 1 2 and 1 5 For the older RADDS 1 1 use the RADDS 1 1 guide The RADDS Board provides the following connectivity s 6 Steppers on board X Y Z EO E1 E2 Sample 3 axis and 3 extruders Z axis and E3 extruder comes with 2 pins strips for optional second stepper 6 Heavy duty MOSFET s Sample 1 HeatBed 3 HotEnds and 2 fans SD Card micro SD slot onboard optional external SD slot Standard LCD 5V with 4x20 characters HD44780 compatible Rotating encoder on LCD panel 6 endstops Xmin Ymin
9. 00W PSU Sample you power your RADDS steppers and heated bed using 24V and fans heater and case LED by 12V Heated bed 24V Power Supply 24V eno V eno V Power Supply for heated bed only NENE Power Supply for stepper DUE Heater Hotend Power Supply for heater or LED and fans RADDS do switch the negative side Sample To turn on Fan 1 RADDS switches the negative fan pin to GND The positive fan wire is connected to 12V so the fan start UserGuide V2 ooznest Page 38 of 44 6 2 7 wires sizing There are two power inputs on RADDS one for the Heated Bed another for everything else As seen in the wiring diagrams each of these loops have the same electrical consumption 180W for both so wirings will be the same size for each We recommend using high quality copper wires between the PSU and RADDS between RADDS and the heated bed Use this table to choose the ideal area Ampere Up to 5A max 6A to 15A max 16A to 20A max Online calculator used to calculate these values http www solar wind co uk cable sizing DC cables html Calculations done for 1meter wires which is more than you usually need loss 296 and current that have to travel inside the wires UserGuide V2 Page 39 of 44 7 Software 7 1 Arduino software Free software used to edit the configuration files and or upload new firmware to the Arduino DUE UDOO QUAD http arduino cc en Main Software
10. ble especially with DC motors and more and more used in electronics PWM is 8bits coded so 256 values are available 0 0 time to max voltage no voltage 255 100 of time to full voltage full voltage 128 is the average 50 time to OV and 50 time to 24V 24 for example But it don t means it will generate 12V it not so easy It s always 24V but only a part of the time so that 12V devices could be supplied With 24V PSU each output where a 12V device heater fans lights is connected must be PWM controlled in order to receive a virtual 12V voltage This is achieved by altering some settings in the configuration h file of your firmware Values depends on the Hotend so it s difficult to give an always working figure Usually a good value is to divide original PWM value by 4 For example a 12V PSU with a 255 PWM setting would be reduced to 64 when supplied with 24V PSU Also depends of the individual Fan electronic setup By most of them it works but we give no warranty for this In practice we have tested these Values in the Firmware PWM from 230 to 100 Other PWM 255 to 120 The fan from 255 to 100 is ok Search for settings like this in the configuration h file define EXTO PID MAX 255 120 define EXTO PID INTEGRAL DRIVE MAX 230 to 100 define EXTO EXTRUDER COOLER SPEED 255 to 100 UserGuide V2 Page 37 of 44 6 2 6 Dual PSU 24V and 12V In this setup you combine a 24V 300 400W PSU and a 12V 1
11. cture above If the sensor does not detect the magnet try to rotate the magnet upside down according the fact that magnets have 2 poles and only one is detected UserGuide V2 ooznest Page 26 of 44 4 6 Option for extra accurate adjustment S Using a spindle potentiometer 5 10 kOhms adjustment can be made a lot more sensitive Only the wiper and one end of the resistor is connected The third wire is connected to the potentiometer shield 1 You have to disable the internal potentiometer when an external potentiometer is connected For this purpose the stop is bent 1 and the wiper rotated to the exactly middle between the two ends of the resistance track 2 UserGuide V2 Page 27 of 44 TENES O O A E E FS d O O O ID MA T AA LAS 1 magnet 2 a 2 magnets LETT TT 0 0 1 2 3 4 5 6 7 8 9 10 potentiometer turns distance in mm A The spindle potentiometer has 10 turns and 10 kOhms One turn corresponds to 1 kOhm The potentiometer on the circuit board has 5 kOhm and a corresponding adjustment from 1 4 to 3 1 mm one neodymium magnet N45 with D 4 and H 1 The external potentiometer can be used as a simple and accurate way to fine tune your Z end stop UserGuide V2 ooznest Page 28 of 44 5 LCD Panel 5 1 Features e 4x20 characters LCD panel e SD Card reader e Back button e Reset button e Combined rotary encoder and push button for menu control e Potentiometer
12. ectronics like controller hotend steppers 10A at max load Fuse 10A P UxI 12V x 10A 120W 2 he heated bed A typical heating bed like MK2a is 180W but there are differences between suppliers and batches A voltmeter would be useful Assume this is 180W powered P U 180W 12V 15 A Total power needed at max load 120W 180W 300W If your power is under powered you can get problems with unstable temperatures skipping steps overheating damaged power For more information about how to calculate the power needed visit http doku radds org NOTE Be careful and check all your connections so you are certain that there is no errors in polarity or shorted cables before you turn on the power Errors can lead to damaged PSU or other electronics UserGuide V2 ooznest Page 32 of 44 6 2 2 12V 24V Choice The standard for reprap is 12V This is a good choice because this is suitable for heating purposes like an heated bed and an hotend 12vdc is standard for most of components and it is always standart for lot of other electrical stuffs like fans lightings The biggest advantage about 12V usage is that you can easily find any power supply unit ATX PSU are just fine for reprap printers easy to implement delivers a good quality 12V signal availible with power range needed easy to find more than 600W psu and it s not too expensive Nevertheless it could be sometimes useful to use 24V First reason
13. efault steps per unit for OrdBot 1 32 This code sample is from Marlin The default steps per unit for OrdBot 1 16 gives you the values for 1 16 micro stepping 80 80 2560 107 X Axis 80 steps mm Y Axis 80 steps mm Z Axis 2560 steps mm Extruder motor 107 steps mm this is the setting for Bulldog Lite Extruder You have to find the correct setting for the extruder you use In the next code line you find default steps per unit for OrdBot 1 32 This is the settings when 1 32 micro stepping are used Here all values have been multiplied with two UserGuide V2 Page 13 of 44 2 5 Install stepper drivers like A4988 DRV8825 or Raps128 Before you install stepper drivers you have to locate the stepper drivers DIR pin SD externa 3 e DI O e e 0 0 o di o 0 e X 23333 Thermistors LCD Enc TARDES 9909 00 00 No When you insert the stepper drivers the drivers DIR pin have to point towards the DIR label on the RADDS driver socket UserGuide V2 ooznest Page 14 of 44 2 6 Connect stepper motors eoce0o0eeo0e6o0o0coeoeose The Z and E3 axis comes with dual motor pin connections so you can connect an additional stepper easily on these axis UserGuide V2 Page 15 of 44 roeoeocoococoocooooeo EXT1 Sample A setup where you use dual stepper motors for the Z axis X and Y axis one extruder This is a normal setup on many printers With this setup you have t
14. f you swap the pole pairs If the motor turns the wrong way you can reverse it in the configuration file 2 7 Connect end stops eoo coe Coe A A SI A Et EAE GND SIGNAL Mechanical endstops Connect the mechanical endstops to the GND and Signal pins so they are normally closed push open UserGuide V2 ooznest Page 18 of 44 2 8 Extension board ee ese sea SOsenvass By using this board you can get two extra stepper drivers 33 02 5 V TX1 RX1 GND E5 VDD 43 3 V E5 DIR ES STP E5 EN E4 DIR E4 STP E4 EN GND E4 VDD 3 3V E4 MS1 E4 MS2 E4 MS3 Extension board size and pins UserGuide V2 Page 19 of 44 2 9 Arduino DUE The Due has a 32 bit ARM core that can outperform typical 8 bit microcontroller boards The most significant differences are e 32 bit core CPU Clock at 84 MHZ 96 Kbytes of SRAM e 512 Kbytes of Flash memory for code at i ELT be can FT TIT TT un PROGRAMMING SE USB t Mount the RADDS board on the top of the Arduino DUE Use the USB Programming port when connecting the DUE to a computer for software update or controlling the printer 2 10 UDOO QUAD If you want more computer power you can replace the Arduino DUE with an UDOO QUAD minicomputer UDOO QUAD is a minicomputer that can run Linux or Android with an embedded Arduino DUE http www udoo org features UserGuide V2 ooznest Page 20 of 44 3 RAPS128 3 1 Features
15. for LCD contrast adjustment e Buzzer e Cable kit e Supports RADDS 3 3V logic UserGuide V2 Page 29 of 44 9 2 Wiring RESET BACK SD CARD RADDS LCD PANEL READER CONTRAST ENCODER oo0oooeoocooo0o 00 5 3 Dimensions 20 17 96 52 101 6 UserGuide V2 ooznest Page 30 of 44 6 Other electronics 6 1 Extruder Hot End EXT1 Z0omQca2 m STEPPER MOTOR Y THERMISTOR HEATER This image shows a normal direct drive extruder hotend setup If Bowden is used the setup is almost the same but there is a tube between the extruder and hotend Wiring Stepper motor to E1 Hotend Fan to FAN 1 Filament Fan to FAN 2 Thermistor to Thermistor 1 Heater to Heater 1 If you have more than one extruder you must use E2 Thermistor 2 and Heater 2 Hotend Fan and Filament Fan to the same terminals as Extruder 1 UserGuide V2 Page 31 of 44 6 2 PSU Power Supply Unit and electrical good sizing 6 2 1 Introduction There is many options for powering your printer The easiest and most common is one single 12V PSU We include some other alternatives as samples However you get better stepper motor performance and the heated bed reaches the given temperature faster if you use a 24V PSU There is other alternatives like use separate PSU to power the heated bed When calculating how much power you need it is normal to divide the power in two 1 All the el
16. ll stepping but has much lower tendency for mechanical oscillation around the step positions and you can drive with much higher frequencies If your motors are near to mechanical limitations and you have high friction or dynamics micro steps do not give you much more accuracy over half stepping When your motors are overpowered and or you do not have much friction then micro stepping can give you much higher accuracy over half stepping You can transfer the higher positioning accuracy to moving accuracy too Source http www reprap org wiki Stepper motorZMicro stepping If you want to alter the micro stepping value on one or more axis you have to set the correct value When using Silencioso you set it using the dipswitches on the Silencioso and modify the values in the configuration h file Each time you increase the stepping one level sample from 1 16 to 1 32 you have to multiply the steps per unit value by two Sample You are using 1 16 steps per unit and the value is 80 and want to use 1 32 steps per unit If your steps per unit value is 80 you have to multiply 80 by two 2x80 New steps per unit value 160 UserGuide V2 ooznest Page 12 of 44 Fdefine DEFAULT AXIS STEPS PER UNIT 8 402 78 402 200 0 8 3 760 1 1 default steps per unit for Ultimaker IHtdefine DEFAULT AXIS STEPS PER UNIT 80 80 2560 107 default steps per unit for OrdBot 1 16 define DEFAULT AXIS STEPS PER UNIT 160 160 5120 214 d
17. n a 24V PSU It will supply 24V to all your components hotends fans etc so they must be 24V components because standard 12V devices may receive severe damage even could burn According to your firmware you could still use 12V components one some outputs with a correct PWM setup in order to shut voltage down see next chapter Heated bed 24V Power Supply 24V Power Supply for gt Jono V eno V heated bed only i Power Supply for stepper Heater Hotend DUE Hotend UserGuide V2 Page 35 of 44 6 2 5 24V PSU Alternative 2 This setup is the one you would use if you need a powerful 24V heated bed but each other component like hotend fans lights etc are standard 12V ones Software firmware will be used in order to reduce the power delivered to 12V components thanks to the PWM modulation which applies high frequency micro cuts to the 24V signal and gives the corresponding percentage of the voltage to the connected device So that your 12V devices are powered with virtual 12V voltage Heated bed 24V Power Supply 24V Power Supply for ewo V cwo V heated bed only 3 Power Supply for stepper Heater Hotend DUE Hotend UserGuide V2 ooznest Page 36 of 44 Software firmware settings PWM modulates a square electric signal type Hi Lo Hi Lo Hi Lo The duration of the Hi period and the Lo period enables to generate a virtual lower voltage It s very relia
18. nt points for the reference voltage Use a voltmeter and measure the voltage between the ground terminal and the pot wiper on the driver s v ref potentiometer Recommended voltage range 0 8 to 1 6 V This corresponds to a theoretical peak engine power from 0 73 to 1 46 A 3 9 Adjust Decay d i UR m TIHITITITTITIDA By turning the decay potentiometer the way of voltage and current decay in the motor coils is changed A medium setting has been proven to work with many Nema 17 motors UserGuide V2 Page 23 of 44 4 HALL E 4 1 Features e Hall effect sensor magnetic e Operating voltage 3 3V or 5V e Potentiometer for sensitive range setup e The sensor provides an analog signal that is proportional to the magnetic field strenght that is compared with the preset value set by the potentiometer e LED that indicates end stop status e Includes HALL E sensor magnet 4 2 Wiring C E N E E E E Sample HALL E end stop connected to RADDS Ref chapter 2 8 UserGuide V2 ooznest Page 24 of 44 4 3 Pin definitions Signal 3 3V 5V 4 4 Dimensions 17 78 16 51 zio TEE M B The mounting holes is 3 2mm in diameter Position of the hall sensor on the circuit board UserGuide V2 Page 25 of 44 4 5 Magnet placement The magnet has red color in this illustration The sensor will detect the magnetic field of the magnet in the front of itself as shown by pi
19. roups radds UserGuide V2 Page 41 of 44 9 Notes UserGuide V2 ooznest Page 42 of 44 10 Your settings Parameter Value Comment UserGuide V2 Page 43 of 44 Parameter Comment UserGuide V2 ooznest Page 44 of 44
20. to 47 UF better for RAPS128 and enough for POLOLUS e Better shielded coil at the DC DC converter and coil moved away from ADC lines UserGuide V2 Page 7 of 44 2 2 Wiring diagram Heated bed Power Supply Power Supply for jew Vejowo V heated bed R Power Supply EEG for stepper Hotend DUE JO sIuuJay Thermistor 3 Hotends 2 1 rne stops lih T ES UserGuide V2 ooznest Page 8 of 44 2 3 Pin definitions and dimensions D 101 6 12V in 12V out 12V out 12V in Fans Fans os p Heated Hotends Hotends Bed eno l l i i sno 45 24 Tia l I2C lle e OO ERA Steppers Endstops 11 IG po oo O0000 Qooooooo oooooo o C DIG F DIR o r r o o Reset SCL1 a M x CSO MISO An t o 09 S GND CLK 9 Elx E e uu uu P 3 34 MOSI E Be OFA o E CD 2 gee o 6 o EOS cit 2 M i PEE amO m o co Thermistors x gt IX o 6 2 0 co AE o o 2 q eo o o 1 r ho P ot E aas lt 9 a ae 9 DIR s iE t T eee oo0000000 oooooooocoooooooo Ce 13 97 AUX ADC LCD and Encoder pr Steppers Servos and ATX on 22 Servo PWM1 Servo PWM2 Servo PWM3 PS on i Servo 5V out Servo 5V out Servo 45V out Servo 5V in 11 GND GND GND GND otepper motor pins UserGuide V2 Page 9 of 44 2 4 Set micro stepping mode When you use stepper drivers like the A4988 DRV8825 and RAPS128 NOT WHEN USING EXTERNAL DRIVERS LIKE SILENCIOSO
21. wo spare outputs where E3 have pins for dual steppers in the same way as the Z output UserGuide V2 ooznest Page 16 of 44 2 6 1 Stepper motors Before you can connect the stepper motor to RADDS you need some information on the stepper motor you have Look at your motor find its part number Then Google it Try to find a schematic or a data sheet that will indicate which wire goes to which pole Note the colors that correspond to each coil Wiring diagram HI IB BLE o ee CRN C 4 leads P D RED BLU 2T Ex Wiring diagram for Wantai 42BYGHW609 stepper motor from www wantamotor com If you can t find the motor s part number you can use another method to find the motor s pole pairs When two wires for a pole A C or B D touch together it makes a closed circuit for that pole and it gets harder to turn the stepper motor 1 Try to turn the motor when no cables touch together it should turn freely 2 Touch two of the cables together if the motor gets harder to turn you have found a pole pair If not try to touch two other cables together until the motor gets harder to move 3 When you have two cables together that makes it harder to turn the motor you have found a pole pair Note the colors for each pole pair Pair 1 BLK GRN Pair 2 RED BLU UserGuide V2 Page 17 of 44 On the Wantai 42BYGHw609 the colors are 11 Black 12 Green 21 Blue 22 Red It does not matter i
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