Author Topic: Viewing bottom of PCB in Eagle  (Read 10610 times)

0 Members and 1 Guest are viewing this topic.

Offline rx8pilot

  • Super Contributor
  • ***
  • Posts: 3513
  • Country: us
  • If you want more money, be more valuable.
Viewing bottom of PCB in Eagle
« on: March 28, 2015, 05:24:54 pm »
Does anyone know of a way to view the bottom of the PCB while doing layout? Essentially flipping the board over?
Factory400 - the worlds smallest factory. https://www.youtube.com/c/Factory400
 

Offline Prime73

  • Regular Contributor
  • *
  • Posts: 174
  • Country: ca
Re: Viewing bottom of PCB in Eagle
« Reply #1 on: March 28, 2015, 05:26:56 pm »
as far as I can tell - nope.  I usually just turn off a top layer if it blocks something on a bottom layer
 

Offline rx8pilot

  • Super Contributor
  • ***
  • Posts: 3513
  • Country: us
  • If you want more money, be more valuable.
Re: Viewing bottom of PCB in Eagle
« Reply #2 on: March 28, 2015, 06:11:35 pm »
Sure wish that was an option. Not fatal, but it can be a pain for sure. The PCB I am working on now is a 2-side design and the bottom side has about 100 components with reversed desiccators that are hard to read. There are also mechanical obstacles that I need to keep in mind, so I have to 'reverse my mind'.

Looking forward to the day I can graduate to a higher-end solution. Eagle has served me well at the early end of the PCB layout learning curve - hopefully I can move up. 
Factory400 - the worlds smallest factory. https://www.youtube.com/c/Factory400
 

Online Monkeh

  • Super Contributor
  • ***
  • Posts: 6023
  • Country: gb
Re: Viewing bottom of PCB in Eagle
« Reply #3 on: March 28, 2015, 08:18:05 pm »
It's a much desired feature. If we can't have 3D we could at least be able to see the board properly in 2D.
 

Offline Wilksey

  • Super Contributor
  • ***
  • Posts: 1153
Re: Viewing bottom of PCB in Eagle
« Reply #4 on: March 28, 2015, 10:29:32 pm »
I tend to turn the top layers off, place components, flip, mirror and change layer, depending on what I need to do and how I need it displayed.  Then turn top layer back on, not ideal, but you get used to it.
 

Offline zapta

  • Super Contributor
  • ***
  • Posts: 6004
  • Country: us
Re: Viewing bottom of PCB in Eagle
« Reply #5 on: March 29, 2015, 01:23:03 am »
You can upload your .brd file to oshpark.com and view it.
Drain the swamp.
 

Offline rx8pilot

  • Super Contributor
  • ***
  • Posts: 3513
  • Country: us
  • If you want more money, be more valuable.
Re: Viewing bottom of PCB in Eagle
« Reply #6 on: March 29, 2015, 01:52:25 am »
The goal is to flip it during design to relieve my brain from having do it. I suspect this is not a problem in Altium Designer?
Factory400 - the worlds smallest factory. https://www.youtube.com/c/Factory400
 

Offline Tac Eht Xilef

  • Frequent Contributor
  • **
  • Posts: 511
  • Country: 00
Re: Viewing bottom of PCB in Eagle
« Reply #7 on: March 29, 2015, 02:06:35 am »
Have a look at the mirror-board and mirror-board-remirror-element-swap-layer ULPs.

They're not ideal by any means (e.g. you'll have issues with locked components) but are OK for quick checks. Best save a version before use though...
 

Offline Howardlong

  • Super Contributor
  • ***
  • Posts: 4777
  • Country: gb
Re: Viewing bottom of PCB in Eagle
« Reply #8 on: March 29, 2015, 02:38:13 am »
After a while your head just gets used to it. For very dense layouts (e.g. 100 parts/sq in) you pretty much have to be able to visualise parts on the top and bottom simultaneously to figure out your part and via placement especially when four or more layers and cannot use blind or buried vias for price reasons.
 

Offline zapta

  • Super Contributor
  • ***
  • Posts: 6004
  • Country: us
Re: Viewing bottom of PCB in Eagle
« Reply #9 on: March 29, 2015, 03:01:31 am »
The goal is to flip it during design to relieve my brain from having do it. I suspect this is not a problem in Altium Designer?

Use a mirror?
Drain the swamp.
 

Offline MarkL

  • Supporter
  • ****
  • Posts: 1551
  • Country: us
Re: Viewing bottom of PCB in Eagle
« Reply #10 on: March 29, 2015, 01:22:14 pm »
I select the bottom layer items I want to view, then use the "Print to file (PDF)" and click the "Mirror" box.  Then view in a PDF reader.

It's fine for checking your work, but it's not very convenient and not at all interactive.  I still want the flip feature.
 

Offline Christopher

  • Frequent Contributor
  • **
  • Posts: 429
  • Country: gb
Re: Viewing bottom of PCB in Eagle
« Reply #11 on: March 29, 2015, 02:59:10 pm »
AFAIK, no.

I was once told "any pcb design tool worth it's weight will be able to flip the board" by an Altium salesman

Ever since that bloody Altium bloke gave me a free trial I've hated eagle. :-DD
 

Online Jeroen3

  • Super Contributor
  • ***
  • Posts: 3331
  • Country: nl
  • Embedded Engineer
    • jeroen3.nl
Re: Viewing bottom of PCB in Eagle
« Reply #12 on: March 29, 2015, 07:43:29 pm »
Assign a key (F8 for example) to the mirror-board.ulp?
Don't forget you've mirrored the board, because the board got actually mirrored.
 

Offline rx8pilot

  • Super Contributor
  • ***
  • Posts: 3513
  • Country: us
  • If you want more money, be more valuable.
Re: Viewing bottom of PCB in Eagle
« Reply #13 on: March 29, 2015, 08:17:48 pm »
Assign a key (F8 for example) to the mirror-board.ulp?
Don't forget you've mirrored the board, because the board got actually mirrored.

I will try this as an experiment, however, I am quite nervous that something is likely to get messed up during translation. changing the actual layout seems like using a sledge hammer to drive a thumb tack.
Factory400 - the worlds smallest factory. https://www.youtube.com/c/Factory400
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf