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Best Ramps Board? (no replies)

March 11, 2019, 12:04 pm
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Hi Guys, We are producing a 3d printer based on the Ramps 1.4/Arduino Mega 2560 board.
Can somebody point us towards a good quality Ramps supplier? Recently Tried and Tested Staticboards and the product was quite decent... BUT they informed us that they are discontinuing production of their boards.
Chinese clones are a disaster. Bent pins, shorted soldering, the list is shameful. When we tested Staticboards, the difference was overwhelming.
So my question, who can we go to? what are the basic differences of the various Ramps series. We have tested the TMC2130 and we need the ramps board to run on it.
Any leads appreciated. Quality is supreme.
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Adding 5v LED COB to RAMPS? (no replies)

March 14, 2019, 9:59 am
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So, I'm trying to add LED to my printer, an Anet A8 that has gone Ship of Theseus and now has a RAMPS and other replacements. I got these LED lights that look like a wall light switch. Opening them up, they have COB LED strips. These run off of three AAA batteries for a total of 4.5v. Each one runs off of 4.5v no problem and they are wired in parallel. To power these, I was thinking of running it off the 5v pin off the AUX on my RAMPS. I had tested one of these with four batteries (6v) and it was fine.

BUT, the problem is I am an idiot who doesn't know what he's doing. I've already destroyed three arduinos.Not by doing this but by making other mistakes that involved shorting five volts directly to ground. (Last one I wired my endstops wrong) So, I thought I'd ask before I destroy another one.

The LEDs have the number LZ6109 on them. I tried to find a data sheet, but no luck. Similar COB LEDs I have found are rated for about 5v, but the LED has -12 printed on them. Don't know if that's voltage or some other number for the factory.

My question is, is this enough load to keep the 5v from just shorting out and frying another arduino? I don't want the LEDs to burn out, but I REALLY don't want to ruin another RAMPS set up. I have a multimeter, but I really don't know how to use it beyond checking continuity, otherwise I could use Ohm's law to add a resister, if needed.

I'm doing this either way, but help would be greatly appreciated.
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Fried my Ramps / arduino board? (8 replies)

March 17, 2019, 9:11 am
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Hi all,
I'm building a mpcnc controller kit based on Ramps 1.4 on mega 2560 and DRV8825 driver modules.

Steppers: hanpose 17HS8401-S 48mm Nema17.

According to the datasheet current max is 1.7A -> I was planing to use (1.7/2)*0.9 = 0.765V, but was starting at 0.7V.

I got the marlin firmware flashed, and repetier host connecting to the board. Then (everything disconnected) I connected one stepper motor. I’m able to step the motor, however it made strange noises. And the DRV heat sink got quite hot.
After playing around a bit (changing voltage between 0.3 and 0.8 V - the noise getting more/less loud, but never vanished), suddenly my lab power supply indicated only 7V instead of 12V. Motors do not move anymore.

Now I have th following situation:
I can flash blink example or the firmware. With the firmware, I can connect from repetier host, the voltage to the ramps board is 12V; the DRV output voltage is 0.7V.
As soon as I send the first step to the motor voltage to the board drops to 7V.

I checked the motor (short circuit the to pairs makes rotation harder, i can connect an led to each pair which shines when rotating the axle of the motor. The two inner cables still have a high resistance between them). So I think the motor is ok.
What could I have fried and how?

Thanks
Alex
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HELP What burned? I Shorted VCC to GND while setting Vref on RAMPS 1.6 with A4988 (2 replies)

March 21, 2019, 11:07 am
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Hey all,
The setup was working. I have RAMPS 1.6 with A4988 steppers which I will be using for a CNC machine I'm building. (The Root3 CNC)
I was trying to set the Vref and my voltmeter probe slipped from the GND pin (I realize now that was a very unsafe way to be measuring the voltage) so it ended up between GND and the next pin which seems to be Vcc.
For a fraction of a second there was a bzzzz and a small puff of smoke.

The screen I have connected to the RAMPS board still turns on although its brightness is all the way up now and the marlin firmware runs but none of the drivers do anything.
I am not sure if I burned something on the RAMPS board or the Arduino 2560.

Visually I cannot tell.
Smell-wise I am thinking it is something on the RAMPS but I have no idea what I should check. If it something I can repair I'd like to try that.

P.s. got a new arduino and ramps in the meantime so I can take my time with this but ideas would be appreciated. Thanks in advance.

p.p.s. The arduino now get quite hot on the side between the USB and power jack connector. The new one doesn't Don't remember if the old one was always like that but doesn't seem normal.
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Ramps 1.4 not receiving power from PSU (3 replies)

March 28, 2019, 11:11 pm
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Hi!

I am in the process of building a FT-2020 i3, and am on the electronics phase. Unfortunately, I ran into a major problem in which the RAMPS board only turns on when its connected to arduino and the arduino is getting power from USB. This problem occurs when the PSU is plugged in and unplugged. I am trying to run 24v to make my wires a bit thinner and tidier, and in doing so, have properly removed D1 from the board in order to separately power the arduino from USB. I have unplugged the RAMPS, and power it on individually, but it does not receive power from the 24v PSU. Although, while plugged in via USB, the PCD and rRAMPS work fine, but of course, only endstops work, so I can't move anything. Can anyone help b/c I have searched everywhere for an answer, and tried lots of things, but I have not been able to solve this. Is my RAMPS defective? I know its not the arduino b/c all lights are proper and I can flash firmware and nothing is blown there. Thanks in advance for any help!!!

Just some notes on the build if you need it:

FT-2020 Prusa i3
Arduino MEGA 2560 + RAMPS 1.4 + Full graphic LCD + 5x A4988
24V PSU (in marlin, psu option is "0", meaning not an ATX or XBOX)
Marlin 1.1.0 or whatever is latest
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Is possible to add external i2c eeprom to arduino for use by ramps (no replies)

April 6, 2019, 2:51 am
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I have a last ramps system. I will upgrade in the future but for now it must do. I want to use UBL with it however but the eeprom is too small. I have several i2c 1Mb eeproms I got for the ramps fd(before I threw them out) Could I add these so as to have enough room for what I want?

Thanks
Bob
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EXTERNAL SD CARD PINS schematic (1 reply)

April 6, 2019, 6:40 am
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HELLO GUYS I NEED TO KNOW THE PINS NUMBRES that i can wire it in ramps.

is there any one know numbers of pins



thank you
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MPX.3 - stepper drivers dead? (1 reply)

April 6, 2019, 5:03 pm
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Hi,
I hope that this is a good folder, but I'm quite new to the forum and 3d printing itself and I found information that MPX.3 is a clone of RAMPS.

I have a bit of a problem and I'd like to ask you guys what my be wrong with my board.
PSU is 24V, Stepper driver A4982
Yesterday the 3d printer was printing just fine, after print finished I waited for temp to go down and I switched it off (from power supply as I don't have a switch button).
Today all motors don't work except Y axis.. I switched X motor to Y port on the board and X is working so this is not motor...
I uploaded RAMPS 1.4 TestCode and hot end and bed heat, Y axis + fan work OK, however extruder, X, Z don't work at all. All LEDs are blinking except led for Q1.

It seems to be unlikely to me that after a successful print during the night 4 stepper driver would die...
Any advice ? Ideas how can I test and find the problem? As stepper drivers are soldered to the board I don't want to try to switch them just to check as likely hood of me breaking the board is quite high just to perform a test.

Thanks
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Wiring ESP8622 + Touch panel Jz-TS35 to RAMPS 1.4 (2 replies)

April 14, 2019, 8:46 am
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Hello guys,

I need to wire both ESP8622 and touch panel JZ-TS35 to RAMPS1.4. Those two originally uses AUX1 (5v GND D0 D1) working pretty fine alone, so I need to wire one of them on other Serial port to use them together , but I don’t know which on to use (AUX2, AUX3....), and also which pins to use for communication as TX RX (D41, D43...). Could you guys help me?

Thanks
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board F5 V1.2 (1 reply)

April 14, 2019, 7:26 am
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I bought this motherboard for over 1 year Motherboard F5 V1.2 and I can not use it. No information found for your configuration.
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Ramps 1.4 no power on 12V (no replies)

April 22, 2019, 7:38 pm
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Long story sort I must of caused some kind of short I was trying to connect a auto level sensor to the ramps it's 3 wire so I connected it to where the -Z min stop was but it needs 12V to power it so I used the power for the supply.. it fried the voltage regulator on the Mega board.. so because I have I new spare I installed it but I noticed that still I can't get my power to power on with just 12V it only powers on with the USB connected.. and if you turn on the printer the contrast on the LCD goes way down and looks like some stuff gets a little garbled.. it looks like the short effected the Ramps board as well?


*edit lol too many boards still had the bad Mega connected it's ok with the spare on
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Heatbed temperature keeps increasing. (2 replies)

April 26, 2019, 11:14 am
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I have bought a second hand printer about a month ago (was the best option for me when cost is concerned). The vendor owns a hobby shop and had this printer he built for sale.

The printer is a coreXY configuration, running on a RAMPS 1.4 kit. It is also running on repitier firmware. I use Cura to do the slicing.

The printer printed fine for a wile with no (observable) problems. A few days ago when I started a new print I could smell electronics burning and I observed the heatbed temperature was increasing past the set temperature of 45C. I turned the printer off at the pain power supply and switched it back on. When I turned on the heated bed it did not heat up at all. Reading other forums I understood that the MOSFET was most likely the culprit (I have measured the fuses and they were functioning correctly). I replaced the MOSFET on the RAMPS board and carefully measured everything around it to ensure that I had not accidentally shorted something in the process. I replaced everything and turned the printer back on. Everything worked fine, the heatbed LED on the RAMPS was off. I turned on the heatbed and it heated up. Soon, though, the heatbed temperature increased again passed the set temperature and I immediately turned the main power off. I disconnected the heatbed and measured it and it had a resistance of less than 2 ohm. With the heatbed disconnected I turned the printer on and immediately the heatbed LED on the RAMPS was on.

I have printed a part, with the heatbed disconnected, and everything works fine (except the heatbed).

Will I need to replace the RAMPS board? Is there any thing else I can try and do before replacing the RAMPS?
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RAMPS 1.5 PS_ON, RAMPS 1.6 PS_ON moved (no replies)

April 30, 2019, 3:10 am
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I'm sure this is answered elsewhere but the only (unanswered) question I found was on Amazon.

I've recently swapped out my RAMPS 1.4 board for a RAMPS 1.6 and noticed that between RAMPS 1.4 and RAMPS 1.5 the PS-ON pin, which would be tied to the PS_ON input on an ATX power supply (enable PSU by pulling low) is no longer present (it used to be next to the reset button).
The obvious alternative is to connect this directly to one of the many available GPIO pins on the Raspberry Pi I have running Octoprint, and intercept the M81 / M80 gcode commands via the available plugin.

I'm reading the schematics here: [github.com]
Ha ha! Not really a schematic for anything but external connectors.

It looks like there is now PSON at J5 near the E0 stepper driver socket. I am probably the first person who was too dense to notice this right away!
So I think I've answered my own question.
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Controlling stepper motors with LabVIEW+RAMPS 1.4 (1 reply)

April 30, 2019, 4:07 am
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Hi everyone,
I´m trying to control 3 stepper motor with LabVIEW 2014. The steppers are wired to A4988 driver in the RAMPS 1.4, and the shield is connected to Arduino Mega.
I connect Arduino and LabVIEW with LINX. The problem is that I have to put the pins where the stepper is connected to in LabVIEW, but this pins are 1A, 1B, 2A, 2B in the A4988.
Does anyone know if there is a correspondence between these 4 pins of the RAMPS and Arduino pins?
If somebody has an example, I would appreciate it!
Thanks.
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Ramps 1.4 LCD showing 2 white "block" lines (no replies)

May 3, 2019, 5:22 am
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Hey everyone. So, I decided to build a second delta (because I somehow had enough extra parts just for one :D ). So I build it, connected everything, but there is a problem. The LCD won't work.
I am using Ramps 1.4 (and it is the selected board in marlin) and normal 2004 RepRapDiscount Smart Controller. I have enabled it in marlin:
// RepRapDiscount Smart Controller.
// [reprap.org]
//
// Note: Usually sold with a white PCB.
//
#define REPRAP_DISCOUNT_SMART_CONTROLLER
but it always shows 2 white lines no matter what. I tried the screen in my first delta and it works (and the other way around that the LCD from the first one does not work on this one). I tried switching the cables, rotating them, reflashing it multiple times and still the same problem.
Interestingly enough, it does beep when I blindly scroll through the menu and select something. It "reflashes" when I hit the restart button on the ramps, not on the display (it blinks and so on, but never shows any characters) but that's about it. And yes, I tried changing the contrast. And yes, everything else works just fine.

Images are here (as I can't post more than one, so I am putting them all to one imgur).

Thanks for any advice. ;)
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Balance potentiometer for stepper drivers (6 replies)

May 6, 2019, 2:49 am
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Hey guys,

Strange issue with the stepper drivers on a ramps. Its like there is not enough power to drive all the steppers, turning up one potentiometer to get that stepper running smoothly, seems to make another motor start to judder. I cant seem to find anyone having the same issue, how do I get them balanced?
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RAMPS 1.5 - Z-Axis won't go down (2 replies)

May 7, 2019, 2:57 am
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Hi all,

As the title of the thread suggests, I'm having trouble getting the Z-Axis to move down. When I try to move the Z axis it will move up. This is a brand new board, and I've also upgraded the firmware to Marlin 1.1.9 as well (probably a mistake to do it at the same time lol).

I can't work out whether this is related to the board or Marlin. I have a good idea of what I'm doing - I built the machine last year and have upgraded it fairly regularly, but changing the RAMPS board and coming across this issue has stumped me.

It's not:

1. Z endstop issues. The sensor shows on M119 as being open and triggered correctly.

It may be:

1. The RAMPS board. I changed my Y-motor to the Z-axis output and it would only go in one direction also. (X and Y work fine by the way normally).

Has anyone else had similar issues?

P.S. I've ordered another 1.4 RAMPS as that was what I had previously, and also a 1.6 (because why not lol).

Cheers

Joe
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Stepper Stops Extruding (Video) (1 reply)

May 8, 2019, 1:20 am
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Hey all,

Having an issue with my extruder stepper. It works for a while, then just starts clicking, please see the video.

[www.youtube.com]

Its not clogged. Once the stepper stops turning, if I take the bowden tube out of the hot end, it still does the same thing.

Turn the printer off and back on after 20 mins. heat up the hot end with the bowden tube still out and it works. Very confused as to what this could be.

I've got a Ramps 1.6 board, with my steppers all set to about .55v

I've got some things I urgently want to print to finish some projects, so any help would be great!!!

Thanks guys
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Adding bluetooth (HC05) to Ramps 1.4 headache (1 reply)

May 8, 2019, 6:28 pm
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Hi y'all, I've been trying to get this bluetooth part to work with my Ramps but to no avail..

I have correctly build the wiring setup mentioned on this wiki page:
[reprap.org]

I measured the voltages across each of the four connectors and everything was fine, 5v and 3.3v after adding the resistors etc.

Then I did the configuration of the device and this is where I halted. Each time I use the arduino programs that are provided on the wiki, I can't connect to the module at any baud rate.

I also tried the troubleshooting tips that were provided but nothing helped. I have ran about 20 different tests on two modules and nothing worked. I also tried switching the Rx and Tx cables to see if they maybe mislabeled them on the modules but nothing helped.

The modules are probably not compatible with Ramps, I am able to see the bluetooth modules on my laptop's bluetooth monitor but can't connect because the modules aren't configured yet so the modules do work. They also blink a red light when I turn on the Ramps that they are connected to. I have correctly set the pins and connected the bluetooth module to the corresponding pins. I triple checked with the silkscreen examples of Ramps that have the pinouts labeled.

Maybe somehow someone else had gotten these to work. What was the trick?
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24v board upgrade (no replies)

May 13, 2019, 2:25 pm
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I have a 12v dc-dc buck converter can someone help with how to power arduino from the ramps board.
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