![[-]](https://theultimatetone.com/images/collapse.png "[-]")
09-23-2018, 02:51 PM
Incremental vs Complete Schematic capture (continued)
In older versions of Eagle, once you have started to lay out the board any new components added to the schematic will not appear in the field to the left of the board; rather, they will form a vertical line extending down from the origin (0,0). This is a bug and it is possible for this line to get too long to see the last components dropped even with the zoom to fit invoked. In this case, you have to use the MOVE tool and enter the last few part names into the command line one at a time. Otherwise, you can use the GROUP tool to move all the components up to a more easily accessed location, then refit the view of the board.
In general, when using the incremental approach to the schematic and board lay out, it is best to limit each new group of parts added to less than ten or twelve, say. When you see how Eagle spaces the unconnected components, it is clear that these are spaced far enough apart for each to be a 16-pin DIP package (dual-inline integrated circuit outline), which is in keeping with Eagle's original purpose of laying out computer boards using 1980-era logic gate chips.. This means the field or line of unconnected parts is much larger than you expect it be.
You will find that the incremental and entire-entry approaches are both useful, and you will use them for different projects depending on how complex each new project is. Even when you think the project is complete, it may occur to you that there is space to add a part or two here or there, or some pads for extra wiring for versatile use of the board in the future.
In older versions of Eagle, once you have started to lay out the board any new components added to the schematic will not appear in the field to the left of the board; rather, they will form a vertical line extending down from the origin (0,0). This is a bug and it is possible for this line to get too long to see the last components dropped even with the zoom to fit invoked. In this case, you have to use the MOVE tool and enter the last few part names into the command line one at a time. Otherwise, you can use the GROUP tool to move all the components up to a more easily accessed location, then refit the view of the board.
In general, when using the incremental approach to the schematic and board lay out, it is best to limit each new group of parts added to less than ten or twelve, say. When you see how Eagle spaces the unconnected components, it is clear that these are spaced far enough apart for each to be a 16-pin DIP package (dual-inline integrated circuit outline), which is in keeping with Eagle's original purpose of laying out computer boards using 1980-era logic gate chips.. This means the field or line of unconnected parts is much larger than you expect it be.
You will find that the incremental and entire-entry approaches are both useful, and you will use them for different projects depending on how complex each new project is. Even when you think the project is complete, it may occur to you that there is space to add a part or two here or there, or some pads for extra wiring for versatile use of the board in the future.
