To much current being drawn you have a short or something plugged in backwards Plugging 3 wire endstops in backwards will blow this nearly everytime.by Dust - General
If you plug in an endstop the wrong way it is very likely you have damaged the voltage regulator on the megaby Dust - CoreXY Machines
test could doesn’t check endstops real code does test codes has a fixed feed rate, real code attempts to move at what ever feed rate you tell it. (regardless of if you machine can do it or not) check both of these M119 is your friend for endstops M203 sets max feed rate, M503 to view current settings.by Dust - General
look though the forums, every 3rd person asks how to build a over sized printer.. and we point out the obvious flaws in this idea. Cost: grows exponentially with size. Print time: grows exponentially with size. (Think months per print) Warping: grows exponentially with size. (will need the be temperature controlled enclosure) Filament: you going to need multiple rolls and a way to smoothy chanby Dust - Prusa i3 and variants
This file does not seem to exists.. None of the versions I have seen have power supply mount holes for eg, and who knows what else has changed.by Dust - Prusa i3 and variants
set your max feed rates in firmware. Then the slicer cant over ride the maximum your hardware can do /** * Default Max Feed Rate (mm/s) * Override with M203 * X, Y, Z, E0 [, E1[, E2[, E3]]] */ #define DEFAULT_MAX_FEEDRATE { 300, 300, 5, 25 }by Dust - Reprappers
You have listed your end stops status twice, but given no information what the machine was doing at the time But even then the MAX endstops should not always be triggered Presuming you only have min endstops on the left, back and down positions you should disable max endstops ie find //#define DISABLE_MAX_ENDSTOPS //#define DISABLE_MIN_ENDSTOPS change to #define DISABLE_MAX_ENDSTOPS //#defby Dust - General
according to this its MKS_BASE comptable So should be easy to make the standard marlin run on itby Dust - General
also MKS TFT28 LCD already has a controller (the smart LCD) that has battery backup eg banggoodby Dust - Firmware - Marlin
use pastebin for the code. When the machine is powered on it defines that position as 0. Normaly on I3 type machines It will not go into negative from position zero. To redefine position 0 you home the axis, or manually tell the printer where it is at see G92:_Set_Position I suspect you still have issues with your endstops.. send the printer a M119 command (endstop status) it should be the sby Dust - General
The mains input the neutral should be blue on the power supply The neutral and phase are also backwards on your plug socket... Net result is it is 'fine', but will cause electricians to turn in their gravesby Dust - RAMPS Electronics
"Do you know a source for quality 18650 batteries whose capacity matches the labeling?" I’m fairly sure this is in the category of the unicorn or the snark...by Dust - Look what I made!
surely you need the enables connected or it will randomly change... (perhaps picking up the direction line)by Dust - General
I think that wleferrand has missed the point of reprap It not just a 3d printer, that just where most are stuck at the moment. Its meant to be a completely self replicating machine.by Dust - Developers
Nema 17 is a physical motor size only. The electrical characteristics are normally made to order by the manufacturer as is the shaft dimensions. The fact that it works off a 4988 chip means its fairly standard for reprap type specsby Dust - Prusa i3 and variants
Of course it does.. you cant print at z0, as the nozzle is hard against the build platform and thus blocked. Bed temperature is set in your slicer, nothing to do with the firmware.by Dust - General Mendel Topics
Yes this is how it works, an it only effects the axis is is set on. (but if you where doing something weird like printing while moving up, the print speed would also be limited) And yes that is slow... Z axis is slow on most I3 type machines, unless you upgrade the threaded rods.by Dust - Prusa i3 and variants
would slow the printer to a crawl (most are slow 16 mhz controllers) would wear out the sd card (they are only good for 100,000 writes each sector) this can be mitigated by implementing a wear leaving file system.. the last thing you want is the power to go out when trying to update a file, will most likely corrupt entire sd Logging to a battery backed up memory chip would be far wiser.by Dust - Firmware - Marlin
because for some reason HOMING_FEEDRATE_Z is in mm/min and and DEFAULT_MAX_FEEDRATE is in mm/s so if you specify 2 (mm/s) * 60 (seconds) = whatever (mm/min) make it more readable.. but you can use either "decide for z feedrate" experimentation... its related to torque of the motor vs frictions and mass, there is probably some horrible math for it.. Personally I just test it set the maxby Dust - Prusa i3 and variants
Its a MOSFET best is IRLB 8743, should run cool other options can be found on (yes different board but same part doing same job)by Dust - RAMPS Electronics
There is another trick which I have seen but not tried if you wish to try it. Take a read of this. ie use a lipo battery (high current source) across the pins (without jumpers obviously) Use thick wires... The tracks underneath don’t stand a chance.by Dust - RAMPS Electronics
I would guess you have a ultra cheap and nasty ramps that has pcb tracks under the micro stepping jumpers. So regardless of if you have jumpers on or off they are always on Test with a multimeter, there should be no connectivity between the pins with the jumpers offby Dust - RAMPS Electronics
Because your trying to extrude threw an extruder that isn’t at minimum required temperature?by Dust - General
You also need to check the voltage rating on the capacitors under the DRV8825 modules. A lot of boards use 16v caps.. You need a 32volt caps. I would also replace the heated bed mosfet with a IRLB 8743by Dust - RAMPS Electronics
#define HOMING_FEEDRATE_Z (4*60) #define DEFAULT_MAX_FEEDRATE {300, 300, 5, 25} most I3s's have m5 rods, if you have m5 rods on Z then these are far to fast try #define HOMING_FEEDRATE_Z (2*60) #define DEFAULT_MAX_FEEDRATE {300, 300, 2, 25} NB eeprom setting can over ride these, check what is is eeprom with m503by Dust - Prusa i3 and variants
Your printer is just showing temperatures T:230.00 E:0 B:66.9 ... T:230.06 E:0 B:67.4 I would guess that its still waiting for the bed to reach temperature since its still climbingby Dust - Reprappers
What sort of controller, you must set the motherboard type correct for your controller or it looks at the wrong pins What type of endstops? switch based? something else? Where have you plugged the endstops into the controller, take a clear photo and post it here so we can see. A picture of the endstops might also help. lastly please post your configuration.h and link it here (use a service lby Dust - Reprappers
With ramps make sure your endstops are plugged into the correct place. There are different positions for max and min positions. Check you end stops setting are set to home to minimum in firmware for Z Ie #define Z_HOME_DIR -1 And check direction of movement Z+ should move the head up and Z- should move the head down. What does m119 say when no endstops are hit and when the Z endstop is hitby Dust - General Mendel Topics
in configuration.h "#define MOTHERBOARD BOARD_RAMPS_14_EFB" you need "#define MOTHERBOARD BOARD_RAMPS_14_EEB"by Dust - General
You look like you have serious over heating issues Your either extruding far to hot or need to add cooling fans or both. You can also turn on the cooling features of your slicer... Basically the first layer is not being given enough time to solidify before the next lay is put down. Gets worse the smaller each layer is. You can also print multiple of the items, to extend each layer time anby Dust - General Mendel Topics