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People building or using RepRaps.
Re: Extruder motor not responding - 7 years ago
DIdn't think of that although I am using Repetier, It makes sense no matter the software. Thanksby graybeardtx - Reprappers
Extruder motor not responding - 7 years ago
I am in the process of converting my Prusa I3 and Melzi controller to a RAMPS 1.4 system. Most things have gone well but the extruder stepper motor refuses to work. I have put the extruder motor on one of the directionnal controllers and it works fine. I have connected the X-axis stepper to the extruder pins and it does not work in that configuration. I have swapped the motor drivers with no succby graybeardtx - Reprappers
Re: Connector identificatiion - 7 years ago
Thanks for the answers. I also forund that there is a Molex 14-60-xxx part where the xxx identifies the number of positions in the commector. I have a crimping tool so thats not a problem but I agree that trying to crimp without the proper tools can produce problems. Johnby graybeardtx - Mechanics
Connector identificatiion - 7 years ago
Can someone help me identify the manufacturer, part number or any other information that will allow me to order additional connectors for some components to my RAMPS1.4 board? I need connectors for 2, 3 and 4 wire shown in the following picture (http://colliertx.net/connectors.jpeg).by graybeardtx - Mechanics
Uploading Firmware to Prusa I3 type priner - 7 years ago
I am well behind the curve on these things - call me a preemie-newbie. In order to load the firmware does the board have ot be connected to all of the pieces like motors heaters, SD card reader,etc.? I have a spare melzi 2.0 controller board with a burned out bed heater connection I am trying load. The console shows the bed heater missing and no SD reader then goes into DebugLevel:14and procedesby graybeardtx - Repetier
Re: `.text' will not fit in region `text' during compile of firmware - 8 years ago
Too many languages selected in the Configuration tool by default. Removed excess languages and it compiles fine except on WinXP. Need to use the ArduinoIDE V1.0.6 ld.exe to compile.by graybeardtx - Sanguino(lolu)
`.text' will not fit in region `text' during compile of firmware - 8 years ago
I am trying to write the bootloader and firmware to the Sanguino controller board on my reprap printer. I got an SD card with the package that supposedly had all the software for the system. After many false starts, I think I am on the right track but unable to reach the finish line. There are two tracks I have tried: 1. Assume that the hex file included in the firmware directory of the SD card iby graybeardtx - Sanguino(lolu)
Re: Burning Bootloader with Arduuino UNO as ISP - 8 years ago
Wouldn't you know it - came in today and retried for the umpteenth time and voila, worked as if nothing had ever been wrong. And they say it is insanity to keep doing the same thing and expecting different results.by graybeardtx - Prusa i3 and variants
Re: Need AVRDUDE guru/bootloader help - 8 years ago
It would appear that I need a wizard rather than just a guru. After numerous retries and an interval where I used the setup to program a couple of ATMega328P chips, this attempt went off as if nothing had ever been wrong. Go figure.by graybeardtx - Sanguino(lolu)
Need AVRDUDE guru/bootloader help - 8 years ago
So here is the situation. I am using an Arduino UNO (Actually and OSEPP Uno R3 Plus) as an ISP programmer. The target board is a Melzi V3 Ebay upgrade to an ATmega1284P chip. Running the ATmega_Board_Detector sketch from Nick Gammon I can query the chip and get all the information about the chip and the bootloader from that sketch (See attached file Board_Detected.txt). When I run the ATmega_Boarby graybeardtx - Sanguino(lolu)
Re: Arduino does not show my Sanguino board - 8 years ago
OK I tried that and no luck. If I use Nick Gammon's sketches I can read the information frrom the target board. But when I try to burn the bootloader using his sketch it doesn't work because he didn't update the board signatures and the ATmega1284P signature is not there so the program aborts before doing anything especially unlocking the memory for update. The board part numbers and bootloadersby graybeardtx - Sanguino(lolu)
Burning Bootloader with Arduuino UNO as ISP - 8 years ago
II have of those Ebay Prusa i3 printers that uses a Melzi controller board. I managed to fry the bed heater terminals on the board so I ordered a replacement from Ebay. After reading about using an Arduino as an ISP to upload bootloaders and firmware I set out to burn a bootloader to my new Melzi board. There are quite a few sources of information on how to update the bootloaders, most being theby graybeardtx - Prusa i3 and variants
Re: Arduino does not show my Sanguino board - 8 years ago
I was studying the output of the 2 commands and noticed the following output after trying to obtain the device signature in the first command: avrdude: Device signature = 0x000000 avrdude: Yikes! Invalid device signature. avrdude: Expected signature for ATmega1284P is 1E 97 05 It then notes the verification error and exits after checking t he fuses. So it is not really making any contact withby graybeardtx - Sanguino(lolu)
Re: Arduino does not show my Sanguino board - 8 years ago
Apparently it doesn't like anything in the path other than the file name. I copied the file to the bin directory where avrdude resides it ran this time again requiring the -F flag. The results are in the attachment. There is a verification error with a mismatch in output. Just for grins, I tried to upload the blink sketch to the ATmega1284P and got interesting results. I have included them in Ouby graybeardtx - Sanguino(lolu)
Re: Arduino does not show my Sanguino board - 8 years ago
In the output it also says use the -F flag to over ride the check. Using this I got through that command OK. I have attached the output from the console. Moving to the second command, I get the following: (I copied the hex file to the root directory to shorten the path) C:\Program Files\arduino-1.6.9\hardware\tools\avr\bin>avrdude -B 8 -C"C:\Program Files\arduino-1.6.9\hardware\tools\avr/etby graybeardtx - Sanguino(lolu)
Re: Arduino does not show my Sanguino board - 8 years ago
Well as usual, going back to redo the command, I get different results. This time it apparently was able to communicate with the chip but unable to write the bootloader. The error log is attached. I notice that the output always seems to say the programmer used is stk500v1 rather than Arduino as ISP. Don't know if that makes any difference.by graybeardtx - Sanguino(lolu)
Re: Arduino does not show my Sanguino board - 8 years ago
Thanks for the detailed instructions. I have followed the steps and everything works up until the BurnBootloader command. At that point the load fails with an Access Denied to the COM port that the Arduino is using. I have attached the error file from the upload. I have double checked the wiring - I am using a ribbon cable to connect the 2 boards via the 6 pin ICSP connectors. I did use a 47uf cby graybeardtx - Sanguino(lolu)
Re: Arduino does not show my Sanguino board - 8 years ago
Does anyone have a comprehensive set of instructions on how to burn the bootloader to the sanguino boards? There are lots of piecemeal comments but they only seem to work for a small subset of users. The instructions for adding the sangrino boards to the Arduino ISP do not work as is. The download is missing the platform.txt file which can be obtained from Github but you have to dig for the inforby graybeardtx - Sanguino(lolu)
Re: Communication problem - 8 years ago
I'm running this on WInXP so I doubt it is due to an update. I also tried using my WIn10 notebook and got the same errors. That points to a problem with the board/firmware.by graybeardtx - Prusa i3 and variants
Re: Communication problem - 8 years ago
I tried that baud rate with no luck. This problem suddenly appeared. The printer was working with the out-of-box settings. I had used the manual control function of the Repetier program several times successfully at 115200. When I tried the program again to manually reposition the print table, I was unable to establish a connection between the computer and the printer. I suspect that the firmwarby graybeardtx - Prusa i3 and variants
Communication problem - 8 years ago
I have one if tose Chinese RepRap clones (Omni M-505 - Prusa I-3) and suddenly have a problem communicating with the system via the direct link provided via the program setups. When I try to connect through the USB connection, I get an error. The screen shot from Pronterface shows the communication as being a bunch of gibberish. If I use the bare bones interface I get the following: Most of thby graybeardtx - Prusa i3 and variants