Unable to delete certain object.

Hi Aaron,

From the picture and the description its not immediately apparent to me what you are trying to delete. There are a couple of things to try off the top of my head, first check that you have the tOrigins layer turned on. Without tOrigins you can't select a component and therefore wont be able to delete it. Secondly check that it's not locked. Right click on the object and you get get a pop up context menu. If it says "unLock" in the menu then it is currently locked. If this is the case select the "unLock" option.

I assume you have both the schematic AND the board file open together? If not then they will be out of sync and will mean back annotation wont work. The other thing which could be stopping you deleting is that components should be deleted from the schematic and not from the board. If this was the error you'd get a pop-up message telling you so which as you haven't said this is probably not the case.

Best Regards,

Rachael

rachaelp wrote:

 

I assume you have both the schematic AND the board file open together? If not then they will be out of sync and will mean back annotation wont work. The other thing which could be stopping you deleting is that components should be deleted from the schematic and not from the board. If this was the error you'd get a pop-up message telling you so which as you haven't said this is probably not the case.

On reading back what I wrote and looking at what you are doing again, I actually now think you have just the board open and are deleting components directly from there. If so then this is probably not what you want to do. Re-download the files if you don't have an unedited copy of the board and open them both up and then delete what you don't want from the schematic. They will all be removed from the board by the automatic back annotation. Then switch to the board and tidy up and tracks and polygons which remain that you no longer need.

Best Regards,

Rachael

Aaron Qwe wrote:

 

I apologize if I still sound crazy haha, this is my second try at eagle.

I'll be honest, it does a little but maybe that's because I don't understand what you are really trying to achieve so lets take a step back. So why don't you want the top layer of the board?

The pads of the ATMEGA2560 which are on the top layer are part of the component. You can't just remove those unfortunately. Why do you want the ATMEGA2560 in the schematic if you don't want it's pads on the board?

Well my objective is to only have the pin spacings from the original board layout. From there, I'll introduce some connectors that will connect to some of the I/O pins of the Arduino Mega.

So my understanding on how to achieve this was to remove everything except for the drill/hole that is situated at the I/O pin, including the pads of the ATMEGA2560 because I thought that including it would have it been fabricated too.

You may want to follow a different approach and have a look here:

https://www.element14.com/community/community/arduino/blog/2013/11/05/finally-an-arduino-library-for-eagle

Markus

So you just want to make a generic board template on which to base your own board which will will plug into an Arduino?

If that's the case just delete the ATMEGA2560 from the schematics, nothing you have said gives any reason for it still to be there as far as i can see.

Definitely would look into it! Thanks

Yeap, I tried doing that from the schematics, but all I get is a "blank" sound notification. I cant select the ATMEGA whatsoever or do anything with it.

That's really odd as it deletes fine for me. Are you sure you are clicking near to the origin of the symbol which in this case is right in the middle of the symbol. I get the "boing" sound if I try to click too far away from the origin.

I decided it would just be easier to do it for you as it was only a 2 minute job to clear everything out and zip it up. See the attached......

Yes, it is exactly as you said. I tried clicking way further than the origin. Thanks for the help!

I actually have one more question, referring to what I want to do. Do I use holes or drills if what I want to do is just introduce some connectors and make connection to to the I/O pins?

From my understanding I would need to use drills right?

Hi Aaron,

It sounds like what you are describing there is plated through holes which in EAGLE can be done in the board by adding a via with a large drill size setting and giving it an appropriate name to match the net it is to connect with. Alternatively (and a better way to do it) you can create a library part for plated holes with various hole sizes specified in the part. You place this in your schematic and wire it to wherever you need and then the pads and air wires will show in the board so you can place it where you need and route it.

But do you want plated through holes or do you want to place a part for a specific connector you wish to add? Again, a component can be created and then this will be added in the schematic and wired up, and will then appear in the board to be placed and routed.

Let me know what you are trying to do and I will give you more specific help if you need it.

Best Regards,

Rachael

Hi Aaron,

It sounds like what you are describing there is plated through holes which in EAGLE can be done in the board by adding a via with a large drill size setting and giving it an appropriate name to match the net it is to connect with. Alternatively (and a better way to do it) you can create a library part for plated holes with various hole sizes specified in the part. You place this in your schematic and wire it to wherever you need and then the pads and air wires will show in the board so you can place it where you need and route it.

But do you want plated through holes or do you want to place a part for a specific connector you wish to add? Again, a component can be created and then this will be added in the schematic and wired up, and will then appear in the board to be placed and routed.

Let me know what you are trying to do and I will give you more specific help if you need it.

Best Regards,

Rachael