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Hello,
I am using RAMPS 1.4 with Arduini MEGA.
I want to print without PC. So what options are available as far as RAMPS 1.4 is considered.
I have connected diode D1 on RAMPS, but it doesn't work.
There are three pins on RAMPS VCC, 5V & PSU_ON...
Which of the above pins should I connect & from what.
Should I connect only VCC with 5v wire on ATX PSU? OR all of the three pins?
by
prashantdshinde
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RAMPS Electronics
Hello,
I have MK2 pcb heatbed from MakeMendel.
The measured resistance is 2.1 ohms.
Can I add a resistor in parallel to bed connection so that the overall resistance comes to 1.1ohms?
If yes, which type of resistor would be compatible.
by
prashantdshinde
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Reprappers
You mean the volt value on stepper drivers?
by
prashantdshinde
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Reprappers
@ supraGuy,
How to deal with missed steps??
by
prashantdshinde
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Reprappers
Replaced 4 pin terminal blocks.
by
prashantdshinde
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Reprappers
Changed RAMPS board....
by
prashantdshinde
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Reprappers
Endstops wiring wrongly connected.
Problem solved.. so closed.
by
prashantdshinde
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Reprappers
Hi all,
I am using my custom designed 3D printer based on Prusa i3.
RAMPS 1.4 + Arduino Mega 2560.
belt driven X & Y axis.
M5 0.8mm pitch driven Z axis.
For the value of 4000 if I print 10 mm cube I get 8.5mm.
#define DEFAULT_AXIS_STEPS_PER_UNIT {80,80,4000,645.058567}
But When I modify it for 4500 I get 12.5mm.
Did anyone faced such issue.
Let me know if I missed any info.
by
prashantdshinde
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Reprappers
This happened for more than one RAMPS1.4 board....
trace cannot be broken for simultaneous two boards...
can you show me in some images...? if possible...
by
prashantdshinde
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Reprappers
LCD works when I connect it to USB on PC....but when USB is removed I see no display on LCD.
by
prashantdshinde
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Reprappers
Mine is a custom designed 20x4 LCD + SD card module.
LCD pins are connected to AUX2 as below:-
LCD pins------>AUX2 pins
1,3,5,16 ------>GND
4----------------->D63
6----------------->D65
2,15------------->+5v
11--------------->D59
12--------------->D64
13--------------->D44
14--------------->D66
I have enabled G3D panel in config.h
by
prashantdshinde
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Reprappers
@frostin, No success even after I removed comment from the lines...below...
//LCD and SD support
//#define ULTRA_LCD //general LCD support, also 16x2
//#define DOGLCD // Support for SPI LCD 128x64 (Controller ST7565R graphic Display Family)
#define SDSUPPORT // Enable SD Card Support in Hardware Console
//#define SDSLOW // Use slower SD transfer mode (not normally needed - uncomment if you're
by
prashantdshinde
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Reprappers
@ frosting, you mean the line#530 in Config.h??
by
prashantdshinde
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Reprappers
Hi all,
I have following config of my printer running Marlin_v1 :-
MEGA2560,
RAMPS1.4,
20x4 LCD,
SD card module.
I have connected the diode D1 on RAMPS to enable printing without PC, but I don't see any display on LCD when I disconnect the PC.
Anyone faced similar issue??
by
prashantdshinde
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Reprappers
check these settings in Configuration.h file for marlin firmware..
=========================
//// MOVEMENT SETTINGS
#define NUM_AXIS 4 // The axis order in all axis related arrays is X, Y, Z, E
#define HOMING_FEEDRATE {25*60, 25*60, 1*60, 0} // set the homing speeds (mm/min)
// default settings
#define DEFAULT_AXIS_STEPS_PER_UNIT {80,80,4000,625.70681} // default steps per unit for Ultimak
by
prashantdshinde
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Reprappers
Hi all,
If I replace the Mosfet on RAMPS with IRLB8743pbf, will it be able to drive large heatbed...??
This seems to be the best alternative....
Regards,
Prashant.
by
prashantdshinde
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Developers
Closed.
Thanks all.
by
prashantdshinde
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Reprappers
Topic is resolved & closed.
The endstop connections were wrong & some settings in marlin were also altered.
Thanks all.
by
prashantdshinde
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Reprappers
hi,
I have the same settings... still getting same issue...
by
prashantdshinde
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Reprappers
Hi,
I have a 3D printer with config as follows:
ATMEGA2560,
RAMPS1.4,
Marlin v1
All axis homed correctly until I changed the RAMPS1.4 with a newer one.
Now the X & Y axis does not homes correctly. When I press + in X dir then it moves correctly but for homing in X dir it moves in + dir only & that too for 10mm distance....Same is the case for Y axis.
I have not changed anything in fir
by
prashantdshinde
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Reprappers
Hi,
I have selected pin #45 to use with Seven switch.
The command would be M42P45S255
But how do I use this.... Do I need to enter this command in the gcode file manually or some other way...?
by
prashantdshinde
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Sanguino(lolu)
@ Stemer114... how do you control the temparature using slicer/extruder software??
I am using RAMPS1.4, built a seven switch but I am not sure from where to take the +12v supply..... from RAMPS D8 or ext PSU?
If RAMPS then will it cross 11 A to heat the heatbed? OR
If ext PSU then how will be the temprature controlled using slicer software?
-Prashant.
by
prashantdshinde
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Sanguino(lolu)
Hi Uklan,
Can you plz let me know the changes to be done in configuration.h file of Marlin...
also let me know if you succeeded in connecting the Seven Switch to Ramps1.4 & heatbed..
by
prashantdshinde
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RAMPS Electronics
Hi cdru...
thanks for the info..
some more queries
I now want to use the D8 output as a switch that drives the Seven Switch's transistor's gate..... Does the existing seven switch circuit have this possiblity?? OR do I have to connect some more wires?
If you can share an image/diagram, that would be really helpful..
Regards,
Prashant.
by
prashantdshinde
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RAMPS Electronics
Hi Andrew,
Thanks for the info.
But I have below queries:
I connected +5v from AUX4 to the signal pin on seven switch & was successful in heating the bed...
But when I connected the +12v from PSU I cannot control the ON/OFF of heatbed using the Pronterface....
If I connect the +12v of seven switch with the D8 of RAMPS, will I get more than 11AMPS out of it to heat the large heatbed withou
by
prashantdshinde
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RAMPS Electronics
Hey Uklan,
Did you tried cnnecting everything? Succeeded?
Do let me know..
by
prashantdshinde
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RAMPS Electronics
Hey Uklan.....can you plz help me here..?
My post @
I have built a seven switch to work it on RAMPS1.4 with marlin...
but I dont know the connection to its connectors & the changes that need to be done in marlin code...
Can you please help me to get this worked?
by
prashantdshinde
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RAMPS Electronics
Hi all,
I connected +5v from AUX4 to the signal pin on seven switch & was successful in heating the bed...
But when I connected the +12v from PSU I cannot control the ON/OFF of heatbed using the Pronterface....
If I connect the +12v of seven switch with the D8 of RAMPS, will I get more than 11AMPS out of it to heat the large heatbed without melting down the connectors??
by
prashantdshinde
-
Developers
Got it....
I forgot to connect GND pin on click encoder to RAMPS..
by
prashantdshinde
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Reprappers
ok, so I should connect a +5v pin on RAMPS to the +5V signal pin on Seven switch... correct?
Can I use any +5v pin from Aux ports on RAMPS 1.4?
by
prashantdshinde
-
Developers
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Pages: 123