QuoteVDX ... could be a "semi-short" somewhere or something is oszillating wildly. Check for shorts or low resistance especially at the endstops. Best methode for checking external loads is with unplugging them and mesuring the drawn current ... caution with th estepper drivers! - they could burn when plugging/unplugging the motors when powered. Even when there is no stepper drivers attached aby bkarpuz - RAMPS Electronics
Thank you once again Dust. Do you think my contrast adjustment is not working? Please see the video below.by bkarpuz - RAMPS Electronics
QuoteDust ?? The display get power form exp1 and should light up when plugged into exp1 you don't even need exp2 for the lcd display itself to work. (you can leave exp2 unplugged and the display will light up and display things, but the encoder will not work) Exp2 is used for the encoder left and right, the kill pin and IO required for the sdcard. You are right, with only EXP1, I could get aby bkarpuz - RAMPS Electronics
What does the potasiometer on the bottom-left is doing? Which pin does the Stop button connects when Mega is connected with RAMPS 1.4 and LCD? How can I dim the back light of the LCD?by bkarpuz - RAMPS Electronics
I have made a detailled test and figured out that when I connect EXP2 on 128*64 LCD to CN2 on RAMPS 1.6, I get light on the LCD and the AMS1117 component of Mega starts heating up very fast. What should I do in this case?by bkarpuz - RAMPS Electronics
Quotebkarpuz I have placed RAMPS 1.6 on my Arduino Mega Clone. When I feed RAMPS 1.6 with 12V 2A, the AMS 1117 component on Mega is getting hot. I might have attached fans to D9 and D10 in the wrong direction and gave it a try for a second. For testing, I have placed Adafruit Motor Shield on my Arduino Mega Clone and fed it with 12V 2A, the AMS 1117 component did not get hot. Does this show thatby bkarpuz - RAMPS Electronics
I have placed RAMPS 1.6 on my Arduino Mega Clone. When I feed RAMPS 1.6 with 12V 2A, the AMS 1117 component on Mega is getting hot. I might have attached fans to D9 and D10 in the wrong direction and gave it a try for a second. For testing, I have placed Adafruit Motor Shield on my Arduino Mega Clone and fed it with 12V 2A, the AMS 1117 component did not get hot. Does this show that something isby bkarpuz - RAMPS Electronics
QuoteDust RAMPS uses 2 wire fans. They PWM the power to change the speed. Ie then only use +V (red) and GND (black) wires. Fans have to be connected via a mosfet to be software controlled. A stock ramps has 3 mosfets, used for hotend, heated bed and part cooling fan. If I will not be using hotend and heated bed, can I connect 2-pin fans to these outputs?by bkarpuz - RAMPS Electronics
QuoteDust A stock ramps has 3 mosfets, used for hotend, heated bed and part cooling fan. Part cooling is the part being printed, right? QuoteDust So step 1 is add more mosfets eg by using a RAMPS RRD Fan Extender How can I connect this to RAMPS 1.6? Thank you very much Dust.by bkarpuz - RAMPS Electronics
Dear RepRap Forum members, I am using RAMPS 1.6 with 4 TM2208 drivers. I want to cool these drivers with a 3 pin (red, black, white) fan. How should I connect the fan and run it? Best regards. bkarpuzby bkarpuz - RAMPS Electronics
After some research, I was able to write a working code, which is given below. #include #define X_STEP_PIN 54 #define X_DIR_PIN 55 #define X_ENABLE_PIN 38 #define Number_of_turns 1 #define Rotation_speed 2000 AccelStepper stepper(AccelStepper:RIVER, X_STEP_PIN, X_DIR_PIN); //Replace with :_D without underscore void setup() { pinMode(X_ENABLE_PIN,OUTPUT); digitby bkarpuz - RAMPS Electronics
Dear RepRap forum members, I would like to run my Nema 17 motors connected to Arduino Mega 2560+Ramps 1.6+Drv8825 with the AccelStepper library. I have the mechanical connections set properly as I can run my motors by using Marlin. I want to move the motors without using Marlin, I want to do this directly from AccelStepper. To this end I have checked the file Marlin\src\pins\ramps\pins_RAMPS.hby bkarpuz - RAMPS Electronics
QuoteDust Trial and error You set the values high in firmware The you use simple gcode eg G1 X100 F{number} You you back and forward trying larger numbers till it is no longer reliably moves. You then set slightly smaller number in the firmware. Dust, Thank you very much for your guidence. bkarpuzby bkarpuz - RAMPS Electronics
QuoteDust That display is a REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER clone not a ZONESTAR_12864LCD This worked for me. Quotebkarpuz Problem 1. How can I determine the parameters for DEFAULT_MAX_FEEDRATE (in the file Configuration.h) for my Nema 17 (17HS4401). Is it try and trial or is there a mathematical computation? Do you have any answer for this one? Thank you. bkarpuzby bkarpuz - RAMPS Electronics
Dust, thank you very much for your answer. Problem 1. I have buzzing with the default values (#define DEFAULT_MAX_FEEDRATE { 300, 300, 5, 25 }) without the jumpers for the x-axis and y-axis drivers. When I plug the jumpers, I do not have any buzzing. Probably, this relates to your explanation. How can I determine the parameters for DEFAULT_MAX_FEEDRATE (in the file Configuration.h) for my Nema 17by bkarpuz - RAMPS Electronics
Dear friends, I a trying to learn operating with the kit below. Arduino Mega 2560 Ramps 1.6 Drv 8825 Nema 17 (17HS4401) LCD 128x64 with SDCard Marlin Pronterface I need your help in this direction. Problem 1. I can install Marlin 2.1.2 (current release at the moment) and connect to Arduino Mega 2560 with Ramps 1.6 with Pronterface. I have set the vref for my Drv 8825s to 0.60 and then connect myby bkarpuz - RAMPS Electronics