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'[EE] Eagle CAD drill file help'
2007\01\29@204028 by Andy Tuthill

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I'm trying to get used to the cam processor to make the files needed for my
pcb's.  Can anyone tell me what to do to make the .dri (drill information)
file?  I made the .drd and .drl files ok but I'm not sure how to make this
one or what is included.  The rest of the files needed appear to be ok.

The help file doesn't mention this but the board maker needs it done
correctly so I'd really appreciate some suggestions.

Regards,
Andy

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2007\01\30@043131 by Vasile Surducan

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The *.drd file is the excellon file required for drills coordinates.
The *.drl is the file containing a simple list of the tools used for
drilling, like this:

T01  0.20mm
T02  0.25mm
T03  0.60mm
T04  0.70mm
T05  1.00mm
T06  1.30mm
T07  3.50mm

The PCB manufacturer could ask you one more file showing the drill
locations on PCB (is good only for controlling the project and has no
manufacturable function)

So the *.dri could be the last file I'm talking about (which is a
standard gerber file in which you'll select only drills and CAD should
generate also a table with drill numbers/ categories and a shape used
to mark every drill)

Vasile


On 1/30/07, Andy Tuthill <spam_OUTazandy63TakeThisOuTspamhotmail.com> wrote:
{Quote hidden}

> -

2007\01\30@052639 by Alan B. Pearce

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>The help file doesn't mention this but the board maker
>needs it done correctly so I'd really appreciate some suggestions.

Haven't any experience with eagle, but this sounds like the PCB manufacturer
is expecting "RS274X" also known as "Extended Gerber" format, which has the
hole size info in the gerber file.

Try using those terms in your help file search.

2007\01\30@194155 by Andy Tuthill

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Thanks for the help on directing me to the answer.

Vasile's reply clarified the situation some but another search turned up a
document which explained how to get the excellon files out of the Eagle Cam
processor.

Unless you know that the excellon drill files are run differently from the
RS-274X files you don't have the proverbial snowball's chance of getting it
right.

Regards,
Andy

{Quote hidden}

>

2007\01\30@205754 by Robert Young

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{Quote hidden}

You can make your own CAM file and combine the Gerber and Excellon runs
into a single pass.  But you will still need to run "drill_cfg.ulf" or
similar just prior to the CAM pass.  Likewise you can modify the CAM
file to include or exclude the creation of placement diagrams, outlines,
drill "maps", etc.

The CAM files supplied with Eagle make good starting points.  For
example, I've made a set of four, one each to match the four offerings
from PCBExpress (now Sunstone).  And another one that creates only the
gerbers and drill data I need to feed an LPKF.

Rob

2007\01\31@194652 by Vasile Surducan

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On 1/31/07, Robert Young <KILLspamrwyoungKILLspamspamieee.org> wrote:
> The CAM files supplied with Eagle make good starting points.  For
> example, I've made a set of four, one each to match the four offerings
> from PCBExpress (now Sunstone).  And another one that creates only the
> gerbers and drill data I need to feed an LPKF.
>
> Rob

Are you complete satisfied with your LPKF system ?
I mean did you try 6 layers boards with it ?

I want to buy a complete system this year.

thx,
Vasile


'[EE] Eagle CAD drill file help'
2007\02\01@000725 by William Chops Westfield
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On Jan 30, 2007, at 11:36 PM, Vasile Surducan wrote:

> Are you complete satisfied with your LPKF system ?
> I mean did you try 6 layers boards with it ?
>
> I want to buy a complete system this year.
>
I bought a used LPKF from eBay a couple years ago for hobbyist
usage.  Less than half the price of the cheapest new unit...

I don't know if it was worth it.  I'm pretty sure I'm still far
behind where I'd be $-wise if I'd sent every board I've made
(including the N iterations of some of them) to a professional
fabricator.  It's nice to be able to go from eagle design to
SS PCB in a couple hours, especially for the tiny boards that
aren't quite right that I tend to make, but often the several
hours of baby-sitting needed don't come along for quite a while,
and I could've sent them out.

It's a pain not having Plated through holes.  Yeah, the newer
systems have some PTH system of somesort, but it adds to the
time and complexity of fabrication...

It's a pain not having a soldermask.

Tools and other expendable items are expensive; you can buy surplus
partially used drills for cheap, but the mechanical etching bits are
uncommon, without many providers, and rather expensive (and they
wear out pretty quick.)

I have my doubts about it working very well below about 1mm pin
pitch.  While the specs say you can get 0.2mm isolation (with the
standard tool), you're looking at a V-shaped trench, so if you
were hoping to do .5mm TQFP with 0.3mm lands 0.2mm apart, you're
at the very edge of possible, and you get a pattern in the third
dimension that is exactly wrong for helping to position the packages.
(trenches for the leads to fall in, between the pads.)  Did I mention
that it's a pain not having soldermask?

Steps for more than 2 layers would add additional complexity and
cost.  Did I mention that it's a pain not having PTH ?

It's really noisy.  I think they rig the trade-show demos where it seems
to run at only "moderate" noise levels.  Or maybe the vacuums have
gotten
better since the one I have.

On the bright side, it's a pretty good CNC drill even if everything
else stops working.  You can easily have complex board outlines and
internal cutouts and such that are rare to find in "prototype" PCB
houses.  You can do signs and (2D) CNC-router type projects other
than PCBs.  The software works ok, isn't hard to use, and seems to
offer capabilities far beyond "free" stuff (like EAGLE's OUTLINES.ULP)

BillW

2007\02\01@035307 by Vasile Surducan

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On 2/1/07, William Chops Westfield <RemoveMEwestfwTakeThisOuTspammac.com> wrote:
{Quote hidden}

My purpose would be proffesional PCB prototypes not hobby usage.
That means I need at least 4 layers (but often 6 layers isn't enough)
The soldermask tool is here:
www.lpkf.com/applications/rapid-pcb-prototyping/working-examples/solder-mask.htm
Take a look to the catalog.

{Quote hidden}

Yes I need 0.5mm BGA and TQFP

>
> Steps for more than 2 layers would add additional complexity and
> cost.  Did I mention that it's a pain not having PTH ?

There is PTH too with electrochemical plating or with chemical rudimentary tool.
see the catalog.

Thanks for your feedback.

I would appreciate also a link to other CAM/complete PCB prototyping
lines including PTH.

{Quote hidden}

> -

2007\02\01@092130 by Robert Young

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>
>
> On 1/31/07, Robert Young <spamBeGonerwyoungspamBeGonespamieee.org> wrote:
> > The CAM files supplied with Eagle make good starting points.  For
> > example, I've made a set of four, one each to match the
> four offerings
> > from PCBExpress (now Sunstone).  And another one that
> creates only the
> > gerbers and drill data I need to feed an LPKF.
> >
> > Rob
>
> Are you complete satisfied with your LPKF system ?
> I mean did you try 6 layers boards with it ?
>
> I want to buy a complete system this year.
>

I am satisfied enough with it.  I salvaged the Protomat from being
junked by another company.  They had long since stopped using it and had
lost the software.  Also the machine's maintenance had been neglected.
After some work and some phone calls to get a new software license, it
was back up and running.  Do 8/8 rule stuff OK and have done a limited
amount of 6/6 with it, but that was on its ragged edge of ability.

I only two one and two sided boards with it, and then only a few.  No
production quantities.  Just prove out the design or whip up a prototype
using TQFPs and 0603 passives.  Much easier than point-to-point wiring
with those little buggers.  Also use it to machine out some case parts
like end-panels for extruded aluminum cases.

For anything that will exist in a quantity of 10 (approximately) or more
or has more than two layers or ends up with lots of vias (ie more than
20) on a two layer, I have prototypes made at a "real" board house.

Rob

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