jeroen94704
Key placement produced too many columns
If i try to create a pcb for my design it gives an error and the script quit
The software is currently limited to generating a PCB for keyboard layouts with a maximum of 18 columns. Apparently the keyboard layout you used has more columns than that. If you think this is not correct, please share the json and I will take a look.
well, yes my design have more than 18 colums. http://www.keyboard-layout-editor.com/#/gists/643c06cd45f22283325e1aa89aaa87c5 i'm not good with py but i didn't understand why you have set a limit that low. My kb is, in fact, with 4 colums in surplus if compared with a standard 100% iso standard kb (that is also larger than 18 column i guess)
Here's a more canonical example of a layout which is broken: the default 104 key layout from http://www.keyboard-layout-editor.com.
Note: GitHub does now allow "attaching" JSON files (it blindly checks the file extension), thus this JSON file has .txt added to the filename.
The 18 column limit comes from the available number of inputs (25) on the atmega32u4. Detecting which key gets pressed requires grouping the keys in rows and columns. With 25 inputs, this means a theoretical maximum of 156 keys (12 or 13 rows with 13 or 12 columns), but wiring the keys of a rectangular keyboard layout into a square matrix would make the resulting schematic headache-inducing. So, as a compromise, I opted to reserve 7 input pins for rows and 18 for columns, resulting in the aforementioned limits.
Given that this limit seems to be problematic for many people I may try a square matrix anyway and see what happens.