beginner help with eagle

Question

I just started a board using eagle for the first time.

I am stuck, can't delete some vias and two overlapping tracks.

I spent three days reading tutorials and I searched everywhere I cannot find a solution to this problem.

I have uploaded some pictures.

The areas highlighted are the ones I am concerned with.

Thanks for your help.

dukepro · Answer

Good afternoon, Chris, David, Joern and Rob all provide good suggestion on how to find the errors. I know that Joern and Rob have been around Eagle pretty much since the oceans formed. Well... maybe not quite//that long. The command you seek is the "Ripup" command. When a trace is deleted, the board editor is trying to delete the entire signal, which can only be done in the schematic in order to maintain consistency between the schematic and the board. By doing a ripup, the board editor will leave what's called an air wire (usually a thin yellow line), which is an indicator that routing is incomplete. The air wire will have the same end points as the trace that was ripped up. After several ripups, you may find that the air wire meanders where you don't want to place a new trace. The mesh of air wires can be recalculate with the "Ratsnest" command. Bear in mind that after a Ratsnet, the air wires will be generated between an unrouted pad and the nearest wire endpoint that's on the same net as the pad. The shortest distance route may not be the proper or optima path. A case in point is when implementing a star ground - where the ground from each subsection of your circuit are all routed to the same via. There are icons for each of these commands, the actual image for which may vary across versions of Eagle. HTH, - Chuck On 2/23/19 20:13, Chris Harrison wrote: I just started a board using eagle for the first time. I am stuck, can't delete some vias and two overlapping tracks. I spent three days reading tutorials and I searched everywhere I cannot find a solution to this problem. I have uploaded some pictures. The areas highlighted are the ones I am concerned with. Thanks for your help. -- To view any images and attachments in this post, visit: https://www.element14.com/community/message/272190 
 Attachments: 5468.att1.html.zip

autodeskguest · Answer

Am 01.03.2019 um 13:16 schrieb Chris Harrison: Thank you for responding. For the record I am using v8.2. SNIP There are two problems I see with eagle that will prevent me from using it: 1. You cannot route a trace to a very small TQFP-100 with a mouse. IT'S IMPOSSIBLE! Sorry, but you talk rubbish. To connect to a TQFP-100 is usual business. Perhaps you set your grid to a proper value, let's say about 0.25mm you can route those contacts with warp speed. You CANNOT move a component, track or whatever a very small distance with the mouse and I don't drink coffee or consume any caffeine!! Same thing... I have always used the arrow keys on the keyboard in the past simply pressing M (for move) and T for track. It's very easy to move the item this way and extremely precise. Why can't this simple command be implemented in eagle? In just simple track routing, the process is extremely difficult.The very end of the track straying to the left or right Ask AD Although key use was never possible before. SNIP In the very old Protel program you can move pins very easily in any component just by unlocking the component. Well then, use Protel. It is imho childish to compare programs against each other. Either learn how to proper use your program or get a different program as easy as that. -- Mit freundlichen Grüßen / With best regards Joern Paschedag

Fred27 · Answer

I find that as a general rule showing and hiding layers can help a lot. If you're not sure exactly where an artifact is, sometimes showing all layers held reveal it. If you're struggling to select a via for instance, turn off all layers except vias.

There are definitely some usability quirks in Eagle that can trip you up right at the start when you're trying to get your head round it all.

autodeskguest · Answer

On 24/02/2019 01:13, Chris Harrison wrote: I just started a board using eagle for the first time. I am stuck, can't delete some vias and two overlapping tracks. I spent three days reading tutorials and I searched everywhere I cannot find a solution to this problem. I have uploaded some pictures. The areas highlighted are the ones I am concerned with. Thanks for your help. Which version of Eagle? As Joern says, those look like DRC markers but, unless you're on an older version, removing the cause of the error should clear them. At least since V9.0 - I can't remember when it changed but V7 needs the explicit clear command.

autodeskguest · Answer

Am 24.02.2019 um 09:44 schrieb Chris Harrison:

thank you for responding.

is there no way to get rid of it? i am finding eagle to have a lot of these bugs or quirks.
I used to use an old version of protel that was just too easy, not at all complicated like eagle.
place a track, type P then T how easy is that?
place a via, type P then V
move a track, M, T
it is very difficult to connect a trace on a very small tqfp device when you can't even use the arrow keys!!

i copied the files from my desktop to my laptop and the errors went away.

trouble is i need to use the desktop because eagle is almost impossible without a real mouse!

any help is greatly appreciated. i am almost going to give up on eagle and try something else.

--
To view any images and attachments in this post, visit:
https://www.element14.com/community/message/272207

One cannot compare one program with the other directly.

The errors shown could be from the DRC and would be erased by ERRORS

CLEAR in command line.

Easiest would be if you zip your eagle files and place them here (if

they are not top secret), so eagle users could check them.

BTW it's always good to tell the eagle version.

--

Mit freundlichen Grüßen / With best regards

Joern Paschedag

beginner help with eagle

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