I'm sure that there is no bootloader installed on the melzi board and you wont be able to upload code via the FTDI without it. So you have to install the bootloader first via the ISP interface on your melzi board. You can upload the bootloader with an USBASP dongle or even with an Arduino UNO (maybe the better solution). Scroll down to "upload bootloader" --> http://reprap.org/wiki/Melzi
After that you should be able to upload the code via FTDI (USB)
If you have problems with Arduino IDE 1.6xx and the sanguino board files, there is an updated version here:
Hi everyone and Thanks a lot to Axelsp for the modified source code, got it compiling and working in a minute! On the other hand, I have still one issue I need to solve, I hope anyone on this chain can help me... My issue is that ALL THE MOTORS ARE ONLY CAPABLE OF MOVING IN THE POSITIVE DIRECTION OF THE AXIS (x, y and z) :S
thanks for the awsome support. I have not tested this version of the firmware yet. Will try soon. I am having an issue with my Metal zonestar unit with the 5 keypad. I get really garbage LCD output, i simply can't use the LCD if its installed. Anyone have a solution? How can I sheild the LCD and the cable?
As osnwt wrote, best practise would be to check the display out as a "dry run" on any MCU Board (like Arduino). I believe there is no further shielding neccessary, it looks more like a connection problem. Are you sure, that you have installed the pin connectors into the right direction? Maybe you have some spare jumper cables for a direct connection so you can be sure that the two cables aren't faulty.
For the connections you can look here for schematics:
Hi everyone and Thanks a lot to Axelsp for the modified source code, got it compiling and working in a minute! On the other hand, I have still one issue I need to solve, I hope anyone on this chain can help me... My issue is that ALL THE MOTORS ARE ONLY CAPABLE OF MOVING IN THE POSITIVE DIRECTION OF THE AXIS (x, y and z) :SNo panic - just compile the firmware again and this time check the checkbox for endstop active low For all 3 axes.
Anybody been able to setp up autolevelling with it ??? i did install new firmware 0.92.9 and if i enable autolevelling the keypad does not work. As soon as i disable autolevelling in the config the keypad comes back to life !!!
Alright, it could also be due to the board (mine is the Anet A8 board, which is a melzi clone).I decided to just turn LCD+keypad support off. Now everything else works well, including auto-leveling and distortion correction.