Sorting out connections (2 replies)
How to connect basic parts to a Ramps bd is easy!!!!!!!!! But I have complicated matters by using 2 extruders. Now, I need to connect a fan extender and use some additional I/O for LEDs etc. When does...
View Articleresult of thermocouple wrong when motors are moving (4 replies)
Hi guys, I have a problem with the thermocouple of my Extruder. Everything works well until the motors starts moving. Then the shown temerature jumps up to 50°C down. I am using the ramps 1.4 with 2...
View ArticleConstant 5V power (1 reply)
I am trying to modify my marlin config file to remotely be able to turn on my 3d printer. The problem is that because I use a computer power supply, I have to activate it separately by connecting two...
View ArticleTemperature reported constant, no matter what temperature it is (2 replies)
Hey RepRappers, So I was experimenting with my printer, and long story short, ended up running 2000 volts through the darn thing, turning the thermistor into a lightbulb, completely frying my power...
View ArticleSetting up a RUMBA board (no replies)
I am trying to migrate from a RAMPS board to a RUMBA board and am confused on how to interface with the RUMBA board. It isn't being detected by my arduino by default. Do I have to first flash some...
View ArticleFried Mega 2560 with RAMPS 1.4 (2 replies)
So I have a reprap prusa i3, that came with a ramps 1.4 and arduino mega 2560. I managed to upload marlin to the mega without external power connected, then connected my psu, which made a pop noise...
View ArticleMotors going crazy, board heating up (no replies)
Hey guys, I seem to be in a bit of a fix here. I have an Arduino Mega, RAMPS 1.4, and a 12v (30A 360w) power supply. I tried to send commands to my motors (bipolar steppers) via pronterface, but they...
View ArticleXbox PSU and Power_ON "flickering" (4 replies)
Hi all, I have a Xbox PSU 203W and want to use it with my Printer. Currently I have it all wired and working fine BUT I also want to be able to control it's power using the M8[0-1] commands. I did...
View ArticleSetting Up Merlin Still using Sprinter (no replies)
Ok Calibration for Merlin is compleatly different from Sprinter, I thought I could just Copy the Steps and Endstops. I cannot get Merlin to work for me as reliably as Sprinter.the Steps and every part...
View ArticleDual Z axis steppers moving at different rates (2 replies)
Hi, I'm doing some testing with my printer and after a little while the z axis becomes askew, one side always ends up higher than the other. Is there anything I can do to fix this?
View ArticleHeatsink for the FETs (1 reply)
Should I add heatsinks to the FETs on a RAMPS 1.4 board? I've read various reports of them overheating, and I've got a few spare small heatsinks and some thermal paste lying around. Is it worth doing...
View ArticleRAMPS 1.4 stops working (3 replies)
Hi, I have got RAMPS 1.4 with Arduino MEGA. I have been printing for two days and I have just calibrated the printer. Than I lost connection. I tried several times reconnect and it happened again and...
View ArticleUnwanted and unexpected z-movement during print (1 reply)
Hello everybody, I am in the process of building an ox-cnc from openbuilds, but wanted to be able to use it as a 3d printer as well, so therefore I connected everything to a arduino with a RAMPS 1.4...
View ArticleRamp 1.4 PCB Plug (2 replies)
Hi, I need to aquire a new green PCB power plug, brought one I thought would fit but it doesn't, could anyone link me to the correct item please. Cheers
View ArticleRAMPS for 5V Stepper Motors? (MOD) (4 replies)
Hello, I am interested in driving 5V stepper motors scavenged from old DVD and FLOPPY drives with a stock Arduino + RAMPS 1.4 board. To prevent burning out the motors, I would like to step down the...
View ArticlePotentially toasted stepper? Y-axis loses steps in one direction (2 replies)
Hi Guys, I've been lurking the forum for a long time and just recently finished final assembly on a semi-customized MendelMax 2. Right now i'm in the process of calibrating everything and I'm...
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Hack/Mod Ramps 1.4 for Dual X or Y Carriages (4 replies)
Hey reprapers, i am looking to adapt a mod for either Dual X or Dual Y carriages for a 3d printer on the RAMPS 1.4 board The goal is to separate a single module dual head extruder into 2 separate...
View ArticleRAMPS 1.4 keeps frying stepper drivers (7 replies)
I recently built a Mendel Prusa i2 with RAMPS 1.4. I wired everything up and flashed the test firmware that simply moves all the stepper motors around. At first everything seemed to work fine, then...
View ArticleProblems setting Z offset with new probe (Marlin) [FIXED] (1 reply)
Ever have one of those days when you can't get something to work right, even though you're sure you're doing everything correctly? I'm having one of those days... My equipment is: Prusa i3 (much...
View ArticleMotors make loud buzzing noise and wont turn. (3 replies)
So I am setting up my CoreXY build and the motors will not turn.. When I try to move them using Repetier Host, all that happens is they make a loud buzzing noise and vibrate. I have Vref set 0.8 V,...
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