I had a similar problem, the transistor for switching on the bed over heats and causes a short, so the green connecter melts. I cool the replacement ramps board with two small fans blowing on the stepper drivers and switching transistors, and now the heat bed transistor only has to switch current to the external relay I now use so it is not under any strain. I use a 40a automotive relay , so mby bigaustin - General Mendel Topics
I had a mpx3 board similar to that on Max Micron printer, and it gave up when not even being used !!! not much faith in `all-in-one` boards. I bought a 2560 & ramps 1.4 board and have at last got my machine printing.by bigaustin - Prusa i3 and variants
Its fixed I tried to edit the homing position offsets as per `IMBoring25` suggestion but made little difference !! So I changed them back to: // Travel limits after homing #define X_MAX_POS 250 #define X_MIN_POS 0 #define Y_MAX_POS 250 #define Y_MIN_POS 0 #define Z_MAX_POS 150 #define Z_MIN_POS 0 and changed the offsets for the self levelling probe, which by my reckoning should not have madby bigaustin - Printing
this is what pronteface reports in the RH box when I have a print underway.......any clues ? printing two parts, and again it starts to prints perimeter at about X 160 Y 75 rather than the figures below ?? --------------------------- Connecting... start Printer is now online. echo:Marlin1.0.0 echo: Last Updated: Feb 22 2016 20:12:32 | Author: (none, default config) Compiled: Feb 22 2016 echby bigaustin - Printing
I have set the bed shape in slic3r and firmware to 250x250mm , end stops at minimum, ie it correctly reads the extruder at 0,0,0 when in home position. weird thing is when I start the print process, after it finishes its pre-heat phase of the print, the Z axis raises slightly and the X axis moves to the right by 50mm or so. but I have no added any extra start G-codes to do this ? I am goingby bigaustin - Printing
Hello all, I am new to the world of 3d printing, and this is probably a simple question to answer ( hopefully ) I have a max micron dual extruder printer, with a bed of 250 x 250 mm , I have removed the one extruder for the moment as I had issues in getting the machine working in the first place. I am using Marlin firmware, and printing using slic3r and pronterface. I position the item I wantby bigaustin - Printing