I am trying to do my first print. I have a reprap i2 with a Sanguinololu rev 1.3a and Sprinter firmware. I am just trying to print a 20mm cube that I made in OpenSCAD and used Slic3r to create gcode that I loaded into Pronterface. My pattern keeps shifting. My layers are off of eachother by about half of the width of the cube in different directions after each layer. I am also getting errors rby kevbme - Reprappers
I just bought this one from best buy. +12v 49aby kevbme - Reprappers
There is a voltage adjustment. Can I try turning it up before buying a new one?by kevbme - Reprappers
What is a good power supply to use? I have a sanguinololo board.by kevbme - Reprappers
QuoteThijs The power supply is propably not up to the job. The heated bed uses a lot of power. Usually more than twice of all the other electronics combined. The link in your post does not work for me, but the cheap Chinese PSU's more often than not underdeliver their specs. Its the cheaper of the 2 from easyreprap.comby kevbme - Reprappers
QuoteDaveX Check the open circuit resistance of the bed. If it is greater than about 1 ohm or so, then the bed shouldn't be pulling more than 12A and maybe the power supply isn't up to spec. If it's less than 1 ohm, then it could be trying to pull more than 12V/(bed resistance) out of the power supply and overloading it to shutdown. Im getting 1.3by kevbme - Reprappers
When I click the set button on my heat bed in pronterface, it kicks on for a fraction of a second and then the light on my power supply turns off and nothing works. It comes back on when I hit reset, but bed still won't work. I haven't gotten to print anything yet. I have tested the bed before and it worked just fine. My wires and connections look ok. I unplugged the bed and it didn't happen. Onlby kevbme - Reprappers
I GOT IT!!!!!!! What I was doing before was burning bootloader, setting fuses then uploading firmware. After setting fuses to disable JTAG, you can't upload firmware. What I did now was burn bootloader, upload firmware then set fuses. In order to make changes to firmware, which I did have to do, I had to reset the fuses back to the original settings, re-upload edited firmware then set fuses bby kevbme - Reprappers
That's funny. I just found that same page a few hours ago. Was going to try it tomorrow. I have an Arduino uno. It uses pins 10-13.by kevbme - Reprappers
I tried using avrdude with arduino plugged into usb and sanguino hooked up to arduino. This is what I got. Device Signature error. It is looking at the device signature of the Arduino. Not the Sanguino. Should I leave the Arduino out and plug in the Sanguino USB instead?by kevbme - Reprappers
QuoteDust your going to have to use command line tool avrdude to change the fuses... same ssue I had you cant cant change the -B flag from withing the GUI.. Would you be able to give me a step by step on how to do that using arduino?by kevbme - Reprappers
Quotebrobinsonx To me, your endstop issue sounds like a setting problem in your configuration file as already mentioned. Your x axis direction problem is especially interesting to me. I'm not aware of any settings that would cause it to behave in that way. I suppose it could be a problem with your stepper driver. Have you tried swapping the x and y drivers to see if the problem moves to th yby kevbme - Reprappers
When I tried uploading firmware, after setting fuses as stated above, I got avrdude: stk500_getsync(): not in sync: resp=0x00 Same thing after using low=0x42 high=0xd9 ext=0xff from engbedded Using low=0xff high=0xdc ext=fd as stated at Sanguinololu I got avrdude: verification error, first mismatch at byte 0x0000 0x0c != 0xff avrdude: verification error; content mismatch bootloader bby kevbme - Reprappers
I know they are different than the ones I used. Just edit file and burn correct?by kevbme - Reprappers
So was that the right thing to edit? Or should I put it back? I am using arduino for burning.by kevbme - Reprappers
I edited program files x86/arduino/hardware/sanguino/boards.txt in NotePad. Do I also need to use avr dude on top of doing that? If so, what is that editing? Does the arduino and sanguino need to be hooked up while using avr dude? Not only am I new to 3d printing but to electronics as well, so I need details. Sorry.by kevbme - Reprappers
I use an arduino uno. What do I need to do in the ide after editing boards.txt? Maybe that's the step i'm missing. I have the boards set, then what I did was just burn bootloader. I don't know what you mean by write new boot block and fuses.by kevbme - Reprappers
QuoteDust You have badly setup 1284p fuses. The fuses on the 1284p set some of the functions of the pins, including jtag. If jtag is not turned off, those pins misbehave This kills pins 24-27, ie x-stop,y-stop,z-stop and X direction. see Do you just edit that in the boards.txt file?by kevbme - Reprappers
No. center pin on the stop. Which I believe is the NO pin. I have it on the two outer pins on the board end. When I put a meter on the wires (disconnected from board) I do get an ohm.reading.by kevbme - Reprappers
Quotebrobinsonx To me, your endstop issue sounds like a setting problem in your configuration file as already mentioned. Your x axis direction problem is especially interesting to me. I'm not aware of any settings that would cause it to behave in that way. I suppose it could be a problem with your stepper driver. Have you tried swapping the x and y drivers to see if the problem moves to th yby kevbme - Reprappers
QuoteDaveX If M119 is insensitive to whether or not the endstops are triggered, then the firmware isn't getting the message somehow. If you check out the associated pins with a multimeter, you could see if an electrical signal is getting to the pins. Electrically they should toggle between +5V and 0 when the switch toggles. Doublecheck what you are using with Also, you might check if your fby kevbme - Reprappers
m119 shows x_min:L y_min:L z_min:L weather i'm triggering the stops or not how do i check that?by kevbme - Reprappers
I'm new to 3d printing. I have built a RepRap Prusa Mendel i2 with a Sanguinololu rev. 1.3a Atmega 1284P and StepStick drivers.I have Sprinter firmware uploaded and am using Pronterface. My problems are: X axis only moves in the + direction when i click + or - movements. When I click the home button for any axis, the movement doesn't stop when endstop is triggered. I have searched all over theby kevbme - Reprappers