Can I return a 12v to the endstop signal? (no replies)
I have a capacitive NPN sensor I want to use as a bed probe, it needs a 12v supply voltage and returns a 12v signal. I'm wondering if I can just power the sensor directly from 12v instead of from the...
View ArticleHeated bed has no power (4 replies)
Just finished putting together a new printer and everything is working great except that I can't get the heated bed to power up. All connections are good but there's no power at the D8 connector. I've...
View ArticleRamps went snap/click & smoke. Is that bad? (no replies)
OK, no smoke but I definitely smelled something sweet. I removed a pololu to verify the jumpers underneath. Then I reinserted the driver, making sure it it was the right direction. I turned on the...
View ArticleMaxtemp triggered (no replies)
Hello All, as soon as I connect via Pronterface I get the following error from my hotend thermistor: Error:Temperature heated bed switched off. MAXTEMP triggered !! Error:Printer stopped due to...
View Articlez motors stopped (1 reply)
Printer was working fine (ordbot, ramps 1.4) but one day i go to use it and the two z motors just make a quiet knocking noise when i jog them, x and y work fine. I tried plugging the x motor into the...
View ArticleDual Z axis using seperate drivers on ultimaker 1.5.7 board (2 replies)
not knowing anything about arduinos or 3d printers i picked up the sainsmart mega 2560 board and 1.5.7 ramps, with all steppers endstop and heatbed included, long story short, making a prusa I3 and am...
View ArticleRAMPS based hot wire foam cutter? (no replies)
I'm thinking of building a CNC hot wire foam cutter, looking around for options... none too good for what I see. So I was thinking how difficult would it be to use a RepRap derived mechanics and...
View ArticleHotend wont turn off!!! (1 reply)
I recently built up a mini kossel and am in the process of commissioning it. I have the motors moving, but every time I send a command to the motors, the hotend will turn and keep heating up until it...
View ArticlePronterface comands revcieved with a delay or not at all (no replies)
Hi guys, so I had an issue with one of my mosfets (for D10) just like the guy here [www.printrbottalk.com]. Today I replaced the mosfet and powered up the printer. Previously the fan for my e3d hotend...
View ArticleEndstops position and Arduino code (no replies)
Hello, I'm not english, sorry for the mistakes. I'm building a Prusa Mendel i2 and I am finishing to assembly the electronics but I have an issue. I don't know where and how to put the endstops,...
View ArticleStepper motor move wrong ways (no replies)
I got trouble with my stepper motor, when i make a step of 1 mm all work great but when i do a step of 10mm, the motor don't spin or spin on the wrong side. i use marlin v1 and pronterface or printrun...
View ArticleCrosstalk on X when Y is moving long straight lines (3 replies)
I'm having crosstalk issues on the X axis when Y is moving long straight lines. When Y moves lets say 100 mm then X turns about 1 degree. Is there a 'best solution' available? I see several other...
View ArticleORDBot won't start to print - grinds to a halt (no replies)
I am must finishing my build on my Ordbot Hadron with the following: Ramps 1.4 All motions are correct for X,Y and Z All endstops work correctly Min and Max are defined for x,y, and z a Home command...
View ArticleRumba issues (no replies)
Hi All, I have a new Rumba board. I have DVR8825 drivers on it. When I attach a stepper motor to it (x or y) and I try to move it it just vibrates back and forth and does not move. It just hums either...
View ArticleHeated bed not getting power to D8 output. (3 replies)
Hi, I recently finished my mendel90 and was too lazy to setup the heated bed until recently. I finally got it all going however when I send the command to heat it there is no 12v going to the D8...
View ArticleBed and extruder showing same temperature (4 replies)
I need help troubleshooting thermistors. Using Repetier host, both bed and extruder have the same temperature when 1) no heaters are on, 2) both heaters are on, 3)4) either one of the 2 are on. I...
View ArticleRAMPS Motor Problems (no replies)
No matter what I do, i can only move my Y-axis motor to move. It's not the motors problem. I've tried other motors in the Y slot and even with different stepper drivers and motors will only move if...
View ArticleFull Graphic Smart Controller powers off when USB cable unplugged (2 replies)
Hello, I installed the RepRapDiscount Full Graphic Smart Controller, and it is working very well when the USB cable is plugged in. I can run prints, adjust settings, etc. However, when I disconnect...
View ArticleRunning Arbitrary Gcode (2 replies)
Hi all, I want to borrow my ramps board for a home made coil winder that'll use an x/y axis and just some hand written gcode. Does any one know how to execute arbitrary gcode? Pronterface tends to...
View ArticleLCD display - which area to choose? (no replies)
OK, due to good fortune and the generousity of a donor I have a choice in fitting a 16 X 2 OR a 20 X 4 area size display to a RAMPS controlled Reprap. What information does each size display? Having...
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