Adding a non-plated through hole for a PCB peg

"turnip"  a écrit dans le message de groupe de discussion :

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Hi, I am adding a package to a library, and I need to define a non-plated

through hole, OD 1.75mm, for a PCB peg on a Molex connector, see page 2 at

http://www.molex.com/pdm_docs/sd/908140808_sd.pdf

I clicked the Hole icon and added a hole. It's now displayed as two

concentric circles crossed with a single line, the inner circle has OD 1.75

and the outer circle has OD ~2.0. Why does Eagle display two circles? How

can I specify that it's a non-plated hole? Is there any way to specify

tolerances for drilling?

Thank you.

One circle defines the hole itself. It is located on layer 20. You will

notice that you cannot access it directly.

The other is in fact a symbol (varying with the diameter) on layer 45

(Holes).

If you hide layer 45 you cannot move or delete the hole.

Try hiding/showing these layers.

Tolerances are given by your board manufacturer. Set the nominal drilling

diameter recommended.

Using holes generally (check with your board manufacturer) result in non

plated holes.

Vias and pads end up plated.

Jerome

Am 20.07.2011 08:29, schrieb Jerome:

"turnip" a écrit dans le message de groupe de discussion :

172756855.10281311125220893.JavaMail.jive@flcspu-csapp-01.premierfarnell.com...

 

>

Hi, I am adding a package to a library, and I need to define a

non-plated through hole, OD 1.75mm, for a PCB peg on a Molex connector,

see page 2 at http://www.molex.com/pdm_docs/sd/908140808_sd.pdf

 

I clicked the Hole icon and added a hole. It's now displayed as two

concentric circles crossed with a single line, the inner circle has OD

1.75 and the outer circle has OD ~2.0. Why does Eagle display two

circles? How can I specify that it's a non-plated hole? Is there any way

to specify tolerances for drilling?

 

Thank you.

 

>

>

One circle defines the hole itself. It is located on layer 20. You will

notice that you cannot access it directly.

The other is in fact a symbol (varying with the diameter) on layer 45

(Holes).

If you hide layer 45 you cannot move or delete the hole.

 

Try hiding/showing these layers.

 

Tolerances are given by your board manufacturer. Set the nominal

drilling diameter recommended.

 

Using holes generally (check with your board manufacturer) result in non

plated holes.

Vias and pads end up plated.

 

Jerome

 

>

Hi Jerome,

EAGLE draws the "real" hole in layer 20, Dimension and you can see

an additional Drill Symbol which is a diameter sign in this case in

layer 45 Holes.

--

Mit freundlichen Gruessen / Best regards

Richard Hammerl

  CadSoft Support -- hotline@cadsoft.de

  FAQ: http://www.cadsoft.de/training/faq/

"Richard Hammerl"  a écrit dans le message de groupe de discussion :

j06mo9$inh$1@cheetah.cadsoft.de...

Am 20.07.2011 08:29, schrieb Jerome:

"turnip" a écrit dans le message de groupe de discussion :

172756855.10281311125220893.JavaMail.jive@flcspu-csapp-01.premierfarnell.com...

 

>

Hi, I am adding a package to a library, and I need to define a

non-plated through hole, OD 1.75mm, for a PCB peg on a Molex connector,

see page 2 at http://www.molex.com/pdm_docs/sd/908140808_sd.pdf

 

I clicked the Hole icon and added a hole. It's now displayed as two

concentric circles crossed with a single line, the inner circle has OD

1.75 and the outer circle has OD ~2.0. Why does Eagle display two

circles? How can I specify that it's a non-plated hole? Is there any way

to specify tolerances for drilling?

 

Thank you.

 

>

>

One circle defines the hole itself. It is located on layer 20. You will

notice that you cannot access it directly.

The other is in fact a symbol (varying with the diameter) on layer 45

(Holes).

If you hide layer 45 you cannot move or delete the hole.

 

Try hiding/showing these layers.

 

Tolerances are given by your board manufacturer. Set the nominal

drilling diameter recommended.

 

Using holes generally (check with your board manufacturer) result in non

plated holes.

Vias and pads end up plated.

 

Jerome

 

>

Hi Jerome,

EAGLE draws the "real" hole in layer 20, Dimension and you can see

an additional Drill Symbol which is a diameter sign in this case in

layer 45 Holes.

--

Hi Richard,

I meant that if you hide the layer 45, then you cannot move or delete the

circle you see on layer 20.

I often had questions like "why cannot I move this hole ?" from my

colleagues, because the layer 45 was hidden.

Jerome

Hi,

My manufacturer by default will make hole platting if they will find copper (in GERBER files) arround the hole in TOP and BOTTOM layers.

Regards, Juozas.