Actuate Stepper for Retraction? (3 replies)
I am using the Marlin firmware and need a stepper motor (not the extruder motor though) to move forward a number of steps on retraction and reverse when a print line begins. It is to plug a nozzle. I...
View ArticleRamps LCD is weird then the print stops (3 replies)
This is the third of my custom build and it is one that has me stumped. The print starts out fine, screen works great, then randomly throughout the prints the LCD will display some random text(I've...
View ArticleSainSmart MAX31855 with RAMPS? (12 replies)
Does anyone know if its possible to use the SainSmart MAX31855 thermocouple amp with RAMPS? I am running Marlin. SainSmart MAX31855
View ArticleMotor Test Failed (2 replies)
Hello all! I just bought from ebay the RAMPS 1.4 kit complete with 5 stepper driver A4988 and Arduino Mega. I uploaded the test code which just rotates the motors and blinks the leds[test code] I am...
View ArticleModifying Prusa i3 for syringe pump (no replies)
I'm trying to build a 3D Printer that will print a self curing silk/glycerol solution for scaffolding purposes. So i figured i'd try to build a Prusa i3 and replace the extruding device with a syringe...
View ArticleID these connectors? (2 replies)
I'd like to get a supply of these but want to make sure I get the right part. As best I could find they are Molex KK series part # 22-01-3047 but they dont quite look the same as in the polarizing...
View ArticleDual extruder with RAMPS 1.4 and Marlin Help (3 replies)
I'm using RAMPS 1.4 with the last version of Marlin. If i set #define EXTRUDERS 2 in the Firmware in the file Configuration.h i get the Error temperature.cpp:1292: error: ‘DIO’ was not declared in...
View ArticleThermistor Issue changing from Printrboard to RAMPS 1.4 (no replies)
A bit of background info: I started with a QUBD 2-UP and used it to make a new printer (a SmartRap Core) with an e3d v6 in a bowden setup. It worked great, save for the fact that I made it large...
View ArticleRamps 1.4 with merlin firmware, z axis homes right with inverted up and down...
I've been banging my head against this for 2 weeks now and cannot seem to find any a good way to fix this. I have searched all over and seem to find nothing. What happens is the following. 1. Send my...
View ArticleHow to connect ramps1.4+arduino mega with Raspberry pi (1 reply)
Hello can someone help me to connect a raspberry Pi on my printer? I have arduino mega+ramps 1.4 I like to use octoprint and I was wondering if this is possible! I also just bought this 3d scanner...
View ArticleProblems enabling Dual Extruders in Marlin 1.0.2 (1 reply)
I'm having some issues getting my code to compile for enabling dual extruders. It seems to be the same issue anwofis and k3vbot3000 had here and here. My code compiles just fine until I change #define...
View ArticleExtra temperature monitoring sensors (3 replies)
Dear forummers, I am building my own printer using an Arduino mega & ramps 1.4 for my school project. However, i am required to put in extra temperature monitoring sensors, ideally before and...
View ArticleReprap Power expander for heatbed (3 replies)
Hello I have wired up a 24v power supply for my heatbed on my 3d print and I am having issues I hope you guys can help with. The issue is the heatbed once power is supplied it is right away heating...
View ArticleY Axsis not working??? (no replies)
Hello again I have just wired up my velleman k8200 3d printer to run off of a ramps 1.4 and everything seems to be functioning apart from the Y axsis if I press the button to move it nudges like .01mm...
View Articlenew board, strange motor behaviour (2 replies)
Hello, I recently fried my Ramps Controller, I was doing a long print overnight, I woke up quite late and decided to go and check on the machine, the feed had blocked, no big deal, it happens...
View Articlecacked steppers? Z axis working erratically (5 replies)
Hi folks, the printer, a rework using a ramps 1.4, is assembled and I'm at the fine tuning the steppers stage. My steppers are 0.9^/2.4a per coil and they are being driven by DRV8825. I however are...
View Articlemax step rate (3 replies)
Hi again all, Just seeking clarification regards the max step output on a ramps. I was just reading the wiki on step rates and it mentions the arduino ramps combo has a max step rate of 16KHz. Is that...
View ArticleThermistor Error Ramps 1.4 (MAXTEMP) (1 reply)
Hi! Im using Ramps 1.4 on arduino mega 2560 with Marlin firmware. I'm trying to connect via pronterface My thermistors for both hot end and heated bed both started giving my MAXTEMP error and both...
View ArticleMKS Gen 1.3 - Run fan only when hotend is working (2 replies)
I have u Prusa i3 with MKS Gen 1.3 board, which is based on RAMPS board. I would like to make my coldend fan work only when hotend heater is on. Currently fan is connected to 12V pin, and it starts...
View Articleheating elements not working anymore (no replies)
Hello everyone, My problem might seem straightforward for some of you, but I still would like to have some advice. My printer has two extrusion heads and one heated bed. Some time ago, the regulation...
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