Eagle Questions

Community PCB Design
1

I’m new to electronics and was starting to mess with eagle to make some pcb’s. I ran into a few things.

  1. I had a part that wires were always crossed on the pcb and I couldn’t get flipped, I even tried swapping in schematic so I deleted the part and now I’ve lost all the wires to it and don’t wan to add manually, is there a way to rebind the part so it recreates the wires?

  2. I have two parts that are identical and I cannot get the two line up vertically on the board, they are always offset, how can this happen if they are the same and the grid hasn’t changed.

  3. How do you prevent it from making connections from the top of the board to the bottom of the board. I don’t think my first board should have anything like that, I don’t need top and bottom interconnecting through the board.

2

I’m not quite sure about number 1…

  1. Did the ‘undo’ button do anything?

  2. Using the move tool, hold ‘ctrl’ as you left click on the component.

Tis will grab the component and force it to the current grid.

  1. If you’re talking about autorouter, click the ‘Auto’ tool and turn the relevent layer to ‘N/A’.

I don’t recommend you use EAGLE’s autorouter for complex boards… :?

3

thanks

  1. I had already closed it

  2. I’ll try again but I thought I had tried the control click thing but eagle is bit odd and you have to get used to its oddities so I may have done it wrong

  3. not sure if explained that right, I don’t want it creating a routes through the board, it is creating a route a few inches then it has a whole in the board and it continues on bottom?

4

1-2 Well, I renamed the pcb after working on it for two hours and recreated it and everything looked right. I wonder what messed it up where it was unfixable. I always see where people say not to change the grid size maybe that is what I did.

  1. Would still like to prevent “via’s”, looked it up.
5

turn off the top layer when you start the autorouter.

however, I’ll reinforce the sentiment - the Eagle autorouter sucks. Even simple boards get ridiculously complex and some never even complete. I suggest you learn to route boards by hand. It’s not nearly as daunting as you might think.

6

Will give it a shot, I don’t mind routing myself I’m a draftsman so I’ve done more tedious things.

Thanks!