Newbie struggling with making edge connector

On 24/01/2016 11:38 p.m., George LIVANES wrote:

Thank You Very Much for your help....greatly appreciated.

Only problem is I cannot see your attachment  on my side.

Hi George

You are yet another victim of Element14's badly implemented web portal

into the Cadsoft Forums....and you thought it was a E14 forum

Try Eagle Central, its a much better web interface that works properly.

You will find the attachment is there on your thread.

http://www.eaglecentral.ca/index.php/t/52170/1a48f5bf2f7bdad27de93cd6681c1c93/

Warren

On 24/01/2016 11:38 p.m., George LIVANES wrote:

Thank You Very Much for your help....greatly appreciated.

Only problem is I cannot see your attachment  on my side.

Hi George

You are yet another victim of Element14's badly implemented web portal

into the Cadsoft Forums....and you thought it was a E14 forum

Try Eagle Central, its a much better web interface that works properly.

You will find the attachment is there on your thread.

http://www.eaglecentral.ca/index.php/t/52170/1a48f5bf2f7bdad27de93cd6681c1c93/

Warren

Hi Mike,

Thank you for pointing out I should be using NET instead of WIRE in Eagle

Read this in several places but, after watching a u tube tutorial which used WIRE,

forgot that NET was preferred...very confusing for Newbie.

Regards

George

Hi Warren,

Thank You Very Much for your help....greatly appreciated.

Only problem is I cannot see your attachment  on my side.

Could you please attach again or perhaps email me ?? as I

would very much like to see your version.

I thought of just using the board editor but although I managed

to get some rectangular pads into the board editor I could not route

The pads together (without first connecting them together in the schematics editor

to create airwires).Without airwires in the board editor I could not route the pads together.

I would think this is normal as Eagle expects you to use the schematics editor first, check for errors and

then go to the board editor.

I hope I am making sense as I am obviously very new to eagle.

You also answered my problem regarding how to make the tracks longer...Thank You.

Regards

George

Rob Pearce wrote on Sat, 23 January 2016 01:31

On 23/01/16 02:26, Mike Fields wrote:

(why you don't use a wire to wire something is beyond me, but that

is the

way it is).

Because in the schematic you are not "wiring up", you are defining the

nets that you will later "wire up" on the board. The lines on the

schematic don't represent wires but connections - which could be

realised in a variety of ways that don't necessarily look like the

schematic.

While that is true, it is not intuitively obvious from the number of

beginners that try to create schematics using the "wire" function

(especially for those of us old enough to have put in lots of time wire

wrapping boards etc.)  What they really need is one of those warnings that

pops up (that you can turn off) when someone starts to draw a schematic

with the "wire" command.  Just a simple popup that says "use the net

command when connecting components in a schematic" with the option to check

"don't show this again".

mikey

--

Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.

Rob Pearce wrote on Sat, 23 January 2016 01:31

On 23/01/16 02:26, Mike Fields wrote:

(why you don't use a wire to wire something is beyond me, but that

is the

way it is).

Because in the schematic you are not "wiring up", you are defining the

nets that you will later "wire up" on the board. The lines on the

schematic don't represent wires but connections - which could be

realised in a variety of ways that don't necessarily look like the

schematic.

While that is true, it is not intuitively obvious from the number of

beginners that try to create schematics using the "wire" function

(especially for those of us old enough to have put in lots of time wire

wrapping boards etc.)  What they really need is one of those warnings that

pops up (that you can turn off) when someone starts to draw a schematic

with the "wire" command.  Just a simple popup that says "use the net

command when connecting components in a schematic" with the option to check

"don't show this again".

mikey

--

Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.

Rob Pearce wrote on Sat, 23 January 2016 01:31

On 23/01/16 02:26, Mike Fields wrote:

(why you don't use a wire to wire something is beyond me, but that

is the

way it is).

Because in the schematic you are not "wiring up", you are defining the

nets that you will later "wire up" on the board. The lines on the

schematic don't represent wires but connections - which could be

realised in a variety of ways that don't necessarily look like the

schematic.

While that is true, it is not intuitively obvious from the number of

beginners that try to create schematics using the "wire" function

(especially for those of us old enough to have put in lots of time wire

wrapping boards etc.)  What they really need is one of those warnings that

pops up (that you can turn off) when someone starts to draw a schematic

with the "wire" command.  Just a simple popup that says "use the net

command when connecting components in a schematic" with the option to check

"don't show this again".

mikey

--

Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.

On 23/01/16 02:26, Mike Fields wrote:

(why you don't use a wire to wire something is beyond me, but that is the

way it is).

Because in the schematic you are not "wiring up", you are defining the

nets that you will later "wire up" on the board. The lines on the

schematic don't represent wires but connections - which could be

realised in a variety of ways that don't necessarily look like the

schematic.

On 23/01/16 02:26, Mike Fields wrote:

(why you don't use a wire to wire something is beyond me, but that is the

way it is).

Because in the schematic you are not "wiring up", you are defining the

nets that you will later "wire up" on the board. The lines on the

schematic don't represent wires but connections - which could be

realised in a variety of ways that don't necessarily look like the

schematic.

On 22/01/2016 2:50 p.m., George LIVANES wrote:

Hi Warren,

Thanks for the help.

Yes, the extender i am trying to make looks exactly like this picture

(Double sided).

The edge connector is called a "PCB card edge connector" and are a

simple 2 row connector.

These extenders were very commonly used to service Tektronix and HP test

equipment in the 70's.

The one i'm making will have 20pins a side (40 pins total) and the pins

on the connector are spaced 3.96mm apart (0.156 inches).

I will etch the pcb at home but will not use gold plating.

Regards

George

Hi George

I too have used many of this style of extender board.

I would build this using only the board editor.

The advantage with the approach taken is that you can use Eagle Lite and

make it as big as you like because you have no element origins or smds

to keep within the limitations.

The drawing skills needed are the same whether you do the actions in the

package editor or directly to the board.

I do feel some of the skills are a little beyond novice but basic and

attainable with practice.

I had a go and have attached a board which may be close to what you end

up with.

I did not know the width you needed and that would have made it easier

to do that up front rather than get it right now.

All you need to do to get the height right is group the area at the top

and drag it to the desired height.

As you will etch at home it's all copper plus extra to cut to.

The is an outline that was established to help place the  cut-to copper

areas which are rectangles

There are some dimension on the documentation layer, turn that off

before creating you etch mask

The top and bottom are the same although this example is not symmetrical

so watch out for that.View only the top and bottom layer separately to

see that they are the same.

The traces are simply wires of two different widths

Placement and lengths is done easily by planning well and manipulating

the grid size. That way you don't have to do any maths.

From your description and a data sheet I created the edge connector

tongue. That was the trickiest part. Establish construction lines and

then trim them to  leave the step shape.

So have a go

Let us know if you get stuck

Warren