Heatbed wont turn on after converting Wanhao duplicator I3 from Melzi to...
Hi all. I tried this same question over in the Repetier forums... I thought it was a software thing, but they think it's hardware. Hoping someone here can shed light on my ignorance! Background: I...
View ArticleI added some ramps related pages to the wiki (1 reply)
Go check them out, fix my horrible English, add more content, correct any silly errors etc [reprap.org] I added this after being told (blatantly incorrectly) you can't use 24v on ramps. Its not true...
View ArticleControl PSU & use BLtouch on one single RAMPS board? (2 replies)
Hello everyone, I would like to ask you a question. Is it possible to both : control my ATX PSU from the RAMPS board using M80 and M81 from OctoPrint Use a BLtouch sensor which "requires" to bridge...
View ArticleMarlin acceleration / jerk (no replies)
Hi folks, Quick question: Can acceleration affect the printed objects size? I fiddled around with a ripple-test-cube and adjusted the acceleration and jerk settings. When I set acceleration to Marlins...
View ArticleCan't use MOSFET because d8 pins are at 12v relative to ground? (1 reply)
I'm trying to add a MOSFET to my Makerfarm i3v's bed by following Tom's guide. I ended up with this configuration:[i.imgur.com] When I first turned the printer on with the newly added MOSFET, the bed...
View ArticlePsu and ramps issues (no replies)
Hello everyone. So i finally got a arduino mega and ramps 1.4 for my custom 3d printer.both r from china just saying.so here is the thing i connect mega with the usb from computer and i connect the...
View ArticleMotors only making small movement and a beeping sound. (no replies)
So I have been building a 3d printer an as I thought I was almost done and about to test, the motors do not run properly. They just make a beeping noise except for the extruder and that just endlessly...
View ArticleNothing gets to work with a very large scale 3d printer (no replies)
Hello fellows, I built a 1.8 m X 1 m X 1 m XYZ FDM robot based o RAMPS1.4, Arduino Mega, and Marlin 1.1.4. Every thing was going very nice meanwhile but recently everything went crazy !! what exactly...
View ArticleWeird behavior of electronics (2 replies)
Hi guys, I have some problems with my electronics. I'm using ramps 1.4, arduino mega and LCD 2004. As you can see in the picture sometimes I got some garbage on my LCD. I have checked all the...
View ArticleExtending cables for display (no replies)
Group, would there be any issue with the display communicating with the display of I wanted to extend the cables that connect the two? Currently they are about nine inches long and I would like to...
View Articledual extruders on Ramps 1.4, only E0 is working. (2 replies)
Hi Have 2 extruders connected to my Ramps 1.4. Only that one on E0 is working. If I shift the Cables extruder 2 works when connected to E0. I have replaced the stepper drivers without any luck.. I...
View ArticleSource current from D9 negative? (2 replies)
Hey everyone. I searched all night last night, can't find an answer. So I made an account and here I am. Short version: Can D9's negative lead source current without damaging anything? Meaning can I...
View ArticleRamps 1.4 motors not moving, checklist? (no replies)
Hi, I wired my RAMPS 1.4 this morning and there is something amiss. But I cannot figure it out. What I have: - RAMPS 1.4 - Marlin firmware, CoreXY defined, steps per unit defined, all nice. - A4988...
View ArticleRamps 1.4 motors connection (2 replies)
Hi guys,i need your help with motors connection to my ramps 1.4 I found the motors phases and i connected the cables of the same phase in near pins on the board. When I try to get the motor move in...
View ArticleEndstop question (4 replies)
Hello, I am about to install my endstops, but I want to be sure that schema (Attachments), is correct for X,Y,Z MINIMUM Endstop. Thank, and sorry for my skill on Paint
View ArticleRamps not powering with 12v only with 5v (2 replies)
Hello, I recently bought myself a Ramps 1.4 with an arduino mega 2560 r3 rep but after installing the ramps and it components and running it for like 5 hours it did shut down and now i cant get it...
View ArticlePowering Ramps with 12V and Bed with 24V (2 replies)
Waiting for 10 minutes for my Print Bed to be heated each and every time before priting is just driving me crazy. Now I want to upgrade my rig to 24 V. The first step would generally be making ramps...
View ArticleReplacing F1 fuse (5A) to support more powerful heater? (2 replies)
I have a big 8A heater. Is it OK to replace F1 diode (5A) with a 11A one (similar to F2), and then simply connect the heater to D10? Of course I need to install a good heat sink for MOSFET Q1, or to...
View ArticleLoud alarm and now the screen is blank (1 reply)
Hi there, first time poster but I read the forums time to time. I bought a Makerfarm i3 Prusa, running RAMPS 1.4, three years ago and had it working well for some time. Then I moved to another state...
View ArticleExtruder Fan Question (1 reply)
Hi everyone. I'm new here. I've searched the site trying to find an answer to my question and was not able to find anything. I have connected my extruder fan (the one that should always be ON when the...
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