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eagle cad help

Started by jplebre, August 14, 2011, 06:39:35 AM

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jplebre

Hey guys

Trying to do a couple of things that have a lot of outboard wiring (pots and switches etc.)
I would like to be able to do something like the Gauss Markov boogie where he sets jumpers and outboard wiring.

The problem is (for those of you that use Eagle) when you put the drill pads for Pots (I'm using the GM Library btw). the ratnest makes you still have to lay a ground pad for that pot, even if you plan to wire it outside. How can you make it as an outboard wiring?
Like here

Guess what I'm asking is:
1 - How do you add jumpers (bottom left of the board on the above link)
2 - How do you add external offboard components that with relate with the ratnest (but I still want the gm-lib [POT] object to be the one on my board)

Thank you guys
João

Boobslappy

So in your schematic did you add individual pads and connect them to your pots?  This would allow you to put the individual pads on the board and then manually route the connections to the off board pots.  Now for the jumpers you again create individual pads and use the name tool to rename them to the same name as the polygon you want to connect them too.  So if you are trying to connect some orphan ground planes try renaming the pads to GND or just draw a new polygon and name it like GND2 and have a jumper pad also named GND2 and then connect that pad to the other jumper pad (named GND for the main ground plane) in your schematic.

defaced

#2
The easy way to handle jumpers is to just change to the top layer while you're routing and play with the DRC to make the vias the same size as regular pads.  Restring and drill size are what you're looking for.  Drill size  and via shape can also be messed with by right clicking on the via and selecting properties. 

He's using the same trick for the square pads for the pots.  He's just switching layers to create a via, then changing it's style to look different.
-Mike

jplebre

sorry if this sounds noob so what would be the object to just create pads?

@Boobslappy I created the pot that is, by default, just 3 holes (pads). If then I create more pots they become an extra symbol in the schem, or maybe I'm not following correctly?


defaced

Wirepad library, but if you follow my post, you don't need to go that route. 
-Mike

jplebre

True, but was just making sure I had enough info to follow both suggestions :)

will let you know next time I stop at my home office and spend some time on Eagle!
:)

Boobslappy

Quote from: defaced on August 14, 2011, 03:57:16 PM
Wirepad library, but if you follow my post, you don't need to go that route. 
+1 this seems much easier

jplebre

ahh crap! I need to "Replace" all my pots from the normal 3 pads to actual off board 16mm pots!
I was using the pots pads objects from GM-Lib


jplebre

@Defaced worked like a charm! Thank you!

defaced

You're welcome.  Glad it worked out.
-Mike