Yes you can power the heated bed board directly by plugging it into the power supply normally. It will just heat up uncontrollably, so don't leave it like this.by Dust - General
power the mega on its own from the dc jack, (no ramps) check you are getting 5v from the regulator sadly electronics can be damaged with no visible signs... (especially with inferior human eyes) If thats fine you could have killed the usb/serial chip or the mega itself... both are surface mount and not worth repairing if you don’t already have SMD gearby Dust - General
please watch and related videos Thomas Sanladerer's How to set up the Marlin firmwareby Dust - General
Until the boards have been updated you still need the old version.by Dust - General
I also had this issue Load up the older version, go to tools, then board and than launch the boards manager Wait for it to download its data, then change type to Updatable Update all that can be updated Also download the Sanguino files via this method, to ensure you have the latest see then try again with the new ardunioby Dust - General
where does the wires "1+ and 4-" on the supply go to? I suspect they go to power pins 3 and 4 on the Green plug. This would be the power for the heated bed. What you have is known a a LED power supply, it should always be on when mains is applied, unless there is a short. Your controller is a ramps Please take a photo of the heated bed (top view with any connection information) and secondlyby Dust - General
Lots more details required What type of power supply? ATX type or LED type? How is the power supply set to turn on? via the controller or on all the time? What type of reprap controller? Has this ever worked? ie was this an upgrade to dual extruder from a working single extruder machine?by Dust - General
should be able to do the same trick with Repetier firmware Not quite a nice as one line but. On each layer change add a M163 S0 P1 M163 S1 P0 M163 S2 P0 where Pnnn is the weight so in theory just plug the percentages directly into the P values I haven’t tried this yet, Its on the plan for tomorrow (if other things don't get in the way) Updated Well I gave it a good go... generated gcode,by Dust - Look what I made!
If marlin doesn’t come from here then its not maintained by the authors, so its not official and I would stay away from those versions.by Dust - General
The "upload" is actually more than just uploading, it also compiles the C code (structured txt) into assembly (bytes) that can be understood by the controller. This is then uploaded after it compiles without serious errors. The above error is a compile error Its saying that the code defines function bool code_seen(char code) at line 590 but the function has already been defined as bool code_seeby Dust - General
This is a hardware fault The thermistor on your hot end is shorted, probably the legs are touching, until it reads room temp it will continue to errorby Dust - General Mendel Topics
Your going to have to use external stepper drivers that can provide 3 amps Ie remove the pololu module, make up a pin header so you can get at the Step,Direction, Enable and GND pin and wire those as need to the external stepper moduleby Dust - RAMPS Electronics
I would say that is a 24v heater cartage... My 12v one is 3 ohms, sadly I don’t have a 24volt one to test From another post "Ohms law. Your 40W 12V heater should have 3.6 ohms. Your 24V 40W should be approx 14.4 ohms."by Dust - Prusa i3 and variants
your Y axis is inverted (its printed back to front) It is an endstop and probably a direction issue Where is your Y endstop? If its at the back of the machine this is Y min endstop, plug it into the Y min endstop plug on your controller and configure #define Y_HOME_DIR -1 If its at the front of the machine this is Y max endstop, plug it into the Y max endstop plug on your controller and configby Dust - Firmware - Marlin
It just logging gcode you do a "M28 filename.gco" then all aditional gcode is then saved into that file instead of being actioned "M29 filename.gco" closes the file And yes its slow on a ramps, its over serial, so it uploads at what ever serial rate you have set in your firmware, normally 250000 plugging the SD card into your computers usb port is much faster, about 320000000 baud...by Dust - Firmware - Marlin
I'm wondering if there should be a bond paid by new users If you don’t spam in 3 months then you get the bond back (or if you leave) If you do spam, you lose the bond, donated to reprap When it hurts these spammers back pockets, they might stop!by Dust - Administration, Announcements, Policy
You wont be able to extrude until you fix the temperature issue, it has to be hot before it will move. What voltage is the heat cartage, it my be a 24v system and you have it on a 12v system Check the resistance of the heat cartage with a multimeter (while unplugged) The fan is just as easy as using two wires, just use +5v and gnd, its doesnt use the special PWM wire, it just PWM's the powerby Dust - Prusa i3 and variants
If you shop around, and nope In fact its now worse, with cheap board from china with connecters that are nothing like the correct spec, especially the heated bed. Some also supply crappy (not to spec) poly fuses. Decent green connectors work fine, but people do silly thing, not screwing down the terminal hard enough, or soldering the cable ends (this make the connection worse) You can now gby Dust - Controllers
Also IKEA is not world wide, 3d printing is.by Dust - Look what I made!
how about some machine details What type of controller? what type of thermistor do you have what are your thermistor setting in your configuration.h Have you verified the temperature with an external temperature probe? Ie have you determined if its just reading wrong or really not heating up?by Dust - General Mendel Topics
No Monetary switch mega has be powered on always ramps is directly connected to green ATX wire to the PS-ON, this is pulled low by the mega via gcode M80 ATX_Power_On M81 ATX Power Off look at the bottom left panel "Power". D12 is connected to PS-ON D12 is the pin, as defined by ardunio you find that D12 is really PB6 ( OC1B/PCINT6 ) Here is the decoder ringby Dust - RAMPS Electronics
change usbtinyisp.name=USBtinyISP usbtinyisp.protocol=usbtiny to usbtinyisp.name=USBtinyISP usbtinyisp.communication=serial usbtinyisp.protocol=stk500v1 darn those captcha's are long!, and hard to read ... bet the computer can read it easier than I can!by Dust - General
You can try that. It shouldn't be able to damage the board Just be careful not to bend any pins and work on a anti static environment (wear a anti static strap if you have one) And make sure to put the chip back in the correct wayby Dust - Sanguino(lolu)
himm might be a bug in ardunio find the programmers.txt file find the line protocol=usbtiny in the usbtiny section change it to protocol=arduinoisp restart the ardunio ide This will force it to talk the correct protocol even when it decides to try and use the wrong programmer.by Dust - General
It wont unless the hot end is hot. Safety feature.by Dust - General
I would guess two issues Firstly the one of your thermistors + cables looks like its open circuit, remove the cable from your board and check the resistance threw the cable and the thermistor, should be around 100K at 25C Secondly it looks like you don't have a second thermistor defined in your firmware, so it just not looking at it.by Dust - RAMPS Electronics
That error is basically saying, I can't talk to your boot loader could be several things 1) you don’t have a boot loader on your chip... (sadly some suppliers do this...) 2) your boot loader is expecting different settings (baud rate, protocol etc, so they just cant communicate 3) your auto reboot jumper is off, so it can't reboot the controller and launch the boot loader (check this first)by Dust - Sanguino(lolu)
I don’t know where you got this Marlin_HuxleyTest1.ino from, but it looks like its designed to work on a arduino mega only. It has code to check you have selected this as your board and will not compile for other boards such as the SL most firmware has a motherboard - section in the configuration.h, this is what sets what physical board is expected from boards.h #define BOARD_SANGUINOLOLU_11by Dust - Sanguino(lolu)
You seem a little confused... You get the arduino IDE from (it may need older versions) with this you load marlin.ini and compile it then upload it to your board. You get marlin from What snappy have done is provided a diff file of the main configuration.h But they don't seem to have documented what version of marlin the diff was made from... so applying the diff would be tricky. Luckby Dust - Reprappers
You don't have a usbtiny, you have a avrispby Dust - General