A ramps is designed for x,y,z and e0 and e1 if used in the normal manor, ie you need to hack on a e2 axis (this isnt difficult) Please don’t buy that "diamond hot end", it is stolen from the real diamond head guys. They have not licensed it and don’t give any credit or anything to the real developers. (its also a shoddy copy and probably doesn’t work well) get a real one fromby Dust - Reprappers
"What would impress me would be if they did a 3D scan of a rose (or some other flower, or a doll's head, or a piece of fruit, or a wooden toy), and printed it in full colour 3D, and it looked reasonably similar to the original. I think we're about as far from this now as the Epson MX-80 dot matrix printer of the 1980s was from today's colour laser printers." only with FDM printers Powder baseby Dust - General
No firmware (that I know of) checks that a fan is corrected, let alone working.. The latter is possible if it uses 3 or more wires.. But most just assume its there and turn on a mosfet, this has zero feed back to the controller. It is more likely you have damaged the thermistor cable Un plug the thermistor cable from your controller, stick your multimeter probes into the cable plugs and measurby Dust - Controllers
The mega/ramps has a very very weak power supply (chips says 1amp, but people tell me you can only reliably get a lot less before it over heats) rpi needs ie far more than the mega can provide.by Dust - General
If you could list the suppler, it might save someone else having this issueby Dust - RAMPS Electronics
Yes it should be 5v. It is possible you have damaged both... depending on what you touch, you can short 12v to 5v, and thats very bad. But it sounds more like you shorted 5v to GND and damaged the regulater... Can't comment to the smell, could be a few things. The mosfets burning out for eg, or the bed plug melting from not being screwed down hard or being a inferior part (not rated forby Dust - General Mendel Topics
Its called spam, probably from a automated spam system.. The author of the bot is just a a-holeby Dust - General
you can also burn a small piece... nice little blue flame its PLA, nasty smoky yellow flame it ABS NB it burns well and will turn to liquid and drop hot drips... do this over a sink or something you don't care aboutby Dust - General
Even the raspberry pi 3 is 64bit (the hardware anyways) OS and software are still 32 bit.. An the Odroid C2 has been out for a while... There is always more interesting hardware just on the horizon...by Dust - General
Delta in general, due to its very light weight effector/hotend. (but if you start adding dual extruders, ABL probes and other such things... , this all adds weight and slows it down) You can get very similar speeds and quality if you use a bowden extruder on a Cartesian Wouldn't touch a scara, great demonstration piece, thats about its only redeeming feature.by Dust - General
You have been caught by a dodgy ramps supplier Some cheap and nasty ramps out there have tracks under the jumpers, so its always at 1/16 micro steppingby Dust - RAMPS Electronics
Check your max feed rate for Z, pronterface obeys what ever feed rate is on the screen. but gcode will go to what ever feed rate it wants only limited by max feed rate in firmware ie for marlin find #define DEFAULT_MAX_FEEDRATE {300, 300, 5, 25} This is feed rate for X,Y,Z,E Change E from 5 to 3by Dust - Reprappers
It fits on a arduino due board Juts like a ramps sits on a arduino mega. The supplier has zero idea what open source actually means. there will be zero documentation, luckily its quite simple and they do provide the pin definition. But the mosfets worry me.. no details on what they are and no obvious level shifting... so I suspect mosfets will get very very hot as they aren’t turnedby Dust - General
There are 4 serial ports on a mega2560, on the ramps they are mapped to the following. 2 RXD0 PE0 ( RXD0/PCINT8 ) Digital pin 0 (RX0) usb 3 TXD0 PE1 ( TXD0 ) Digital pin 1 (TX0) usb 45 RXD1 PD2 ( RXDI/INT2 ) Digital pin 19 (RX1) Z-MAX 46 TXD1 PD3 ( TXD1/INT3 ) Digital pin 18 (TX1) Z-MIN 12 RXD2 PH0 ( RXD2 ) Digital pin 17 (RX2) on aux4 13 TXD2 PH1 ( TXD2 ) Digital pin 16 (TX2) on aux4 63 RXD3 PJby Dust - General
remove the ramps, just try uploading to the bare mega powered over the usb cable. re 1280 vs 2560 you need to select the correct board in the ardunio IDE , the 1280 has a different upload baud rate than the 2560 (with standard boot loaders)by Dust - RAMPS Electronics
Check your hardware matches this firmware configuration X endstop, on the left its min on the right it max Y endstop at the back it a min at the front its a max Z endstop at the bed is min at the top of travel is max So set the above to match your hardware Also with ramps the max endstops plug into max endstop plugs, and mins into min endstop plugsby Dust - RAMPS Electronics
Random fluctuation could also be that the Thermistor has gotten lose from the hot end. Can also be cased by voltage issues (power supply to weak) I would also remove your LCD if you have one for now, as they suck lots of power from the 5v rail, see if that make it more stable.by Dust - General
Just change #define TEMP_0_PIN 13 // (written on pcb as T0) ANALOG NUMBERING #define TEMP_1_PIN 15 // (written on pcb as T2) ANALOG NUMBERING to #define TEMP_0_PIN 15 // ANALOG NUMBERING #define TEMP_1_PIN 13 // ANALOG NUMBERING T1, pin 14 isn't mentioned as its the bedby Dust - General
Sounds like you need to set the pots on the driver modules, this controls the current limit to the steppers. NB use a none conductive screw driver on this or you risk blowing up the driver. See for more infoby Dust - General
was more thinking a slicer written for the Pi, using all cores and GPU assisted, so its not painfully slow.by Dust - General
"Operate from 24V: Arduino/RAMPS - don't even think about it. " This is just pure propaganda There are many ways to make a Arduino/RAMPS run on 24v, and that includes out of the box (if you get correct parts) or modifying cheaper boards...by Dust - General Mendel Topics
maybe a gt2560 controller would be better... pin compatible (MOTHERBOARD 7) and plug in stepper modules not sure what display a real Ulticontroller uses.... so cant comment on that. NB people have reported issues with bed fuse holder... best to replace that holder at the start.by Dust - Firmware - mainstream and related support
Well the new Raspberry Pi 3 has just been released 1.2GHz 64-bit quad-core ARM Cortex A53 and faster GPU's etc Surely we must be able to squeeze a slic3r on this now? Thoughts?by Dust - General
Optical cables have to be perfect, any flaws and the light scatters and you get garbage. I don't think any FDM 3d printer will ever be that accurate. maybe a SLS system, but that going to require a strong laser to melt glass powder. FDM printing of glass is hard, but has been recently done, but not by any hobbyist (university's and the like) The temperature requirements are quite high.by Dust - General
If the Drv8825 is is 1/32 micro stepping mode, then the steps/mm must be double that of a standard driver that is only doing 1/16th micro stepping It only changes the steps/mm (tuning of max feed rate and acceleration are done separately)by Dust - Prusa i3 and variants
Not using the + works fine. on those boards Using Ground and signal are correct. I suspect you have pullups disabled in firmware, you need this enabledby Dust - RAMPS Electronics
U3 looks to be a voltage regulator... but the missing pin confuses me.. (probably using tab as third pin) (cant find any clear pictures that I can read the numbers from, so take everything as a educated guess) Sadly this board is not open source so cant find anything useful on it. Presuming it its a voltage regular, first thing to check is the voltage coming out of your power supply. If thby Dust - Controllers
most likely end stops are causing all your movement issues You need to get your endstops working What type of endstops do you have? Switch type need pull ups enabled in firmware. Other than that its just identify where you have endstops X Min is left side , X Max is right side Y Min is at the back, Y max is at the front Z Min is down at bed, Z max is up top. Plug your endstop into the correcby Dust - RAMPS Electronics
to warm for space... (unprotected in space anyway)by Dust - General