Homebrew PCBs

Hi,

I have a 7475A plotter and was wondering if anyone has tried doing artwork
directly onto a copper-clad board with one of these.

Regards,

Terry

yes they work fairly well for pcb track plots
the only real problem is the pen down speed ,the solenoid can slam the
pens into the board pretty hard and blunt the tips 

there should be some links with more detailed info in the 
bookmarks section for the group on yahoo 

Brian

On Saturday 15 June 2002 10:32, you wrote:
> Hi,
>
> I have a 7475A plotter and was wondering if anyone has tried doing artwork
> directly onto a copper-clad board with one of these.
>
> Regards,
>
> Terry

Don't forget to check the archives and the bookmarks pages. I've
gone to a lot of trouble to set up links, please use them. There
are links there specifically on this subject, and we've discussed
this before.

Feel free to ask questions! But do check the bookmarks and
archives.

Steve

--- James Owens <wotisname@...> wrote:
> Hi,
> 
> I have a 7475A plotter and was wondering if anyone has tried
> doing artwork
> directly onto a copper-clad board with one of these.
> 
> Regards,
> 
> Terry


__________________________________________________
Do You Yahoo!?
Yahoo! - Official partner of 2002 FIFA World Cup
http://fifaworldcup.yahoo.com

Hi,

I have checked the bookmarks and links along with
http://www.netcomuk.co.uk/~wwl/pcbs.html I found them so useful I have no
further questions to ask on this subject. Thanks for your help.

Regards,

Terry


| Don't forget to check the archives and the bookmarks pages. I've
| gone to a lot of trouble to set up links, please use them. There
| are links there specifically on this subject, and we've discussed
| this before.
|
| Feel free to ask questions! But do check the bookmarks and
| archives.
|
| Steve
|
| --- James Owens <wotisname@...> wrote:
| > Hi,
| >
| > I have a 7475A plotter and was wondering if anyone has tried
| > doing artwork
| > directly onto a copper-clad board with one of these.
| >
| > Regards,
| >
| > Terry

Really? There is pretty much zero information on that website on
using pen plotters for direct application of resist to PCBs. His
info on plotters is about using them to make a photo pattern, not
directly plotted onto a PCB.

Steve

--- James Owens <wotisname@...> wrote:
> Hi,
> 
> I have checked the bookmarks and links along with
> http://www.netcomuk.co.uk/~wwl/pcbs.html I found them so useful I
> have no
> further questions to ask on this subject. Thanks for your help.
> 
> Regards,
> 
> Terry


__________________________________________________
Do You Yahoo!?
Yahoo! - Official partner of 2002 FIFA World Cup
http://fifaworldcup.yahoo.com

Hi,

This is very true but I found all that I needed to know about plotters in
the bookmarks, as stated below.

Regards,

Terry



| Really? There is pretty much zero information on that website on
| using pen plotters for direct application of resist to PCBs. His
| info on plotters is about using them to make a photo pattern, not
| directly plotted onto a PCB.
|
| Steve
|
| --- James Owens <wotisname@...> wrote:
| > Hi,
| >
| > I have checked the bookmarks and links along with
| > http://www.netcomuk.co.uk/~wwl/pcbs.html I found them so useful I
| > have no
| > further questions to ask on this subject. Thanks for your help.
| >
| > Regards,
| >
| > Terry

I have most of the HP Graphics Language on my website www.tech-diy.com

If you are using a program like Ultiboard, note that the command "AA" 
Arc Absolute which is used to create circles, should be modified.  
Ultiboard specified a 1 degree arc which takes forever to print. You 
can modify the output by downloading the program output as a text 
file into Notepad or MSWord (if using the latter, remember to save 
only as a *.txt file).  Do a REPLACE, searching for ==> ,1; and 
replace with ==> ,15; .  This specifies a 15 degree chord (you can 
use 30, 45, 90 whatever, but 90 will give you a square, not a circle!)

Other stuff going up on the website (slowly) -- the manual for the 
HP3581 Selective Level Meter -- manual for various GenRad stuff.

Hi,

I'm wanting to try and use my HP 7475A plotter to make circuit boards. It
has done nothing for many years and I can't find the book that came with it.
While cleaning I may have altered the DIP switches on the back for the
serial port setting. Can someone post the settings I need to run under WIN98
on COM2.

Regards,

Terry

Isn't it printed on the back?

The Com port is decided on your computer. You'll need to make a
special serial cable for it unless you still have the one that you
used with it before, don't use a regular serial cable.

The details of the serial port settings on the HP 7475a, how to build
the correct serial cable, and setting it up in Windows here on the HP
site:

http://www.hp.com/cposupport/plotters/support_doc/bpp01379.html

The description of setup for W95 should work for anything from W95 on up.

Steve Greenfield

--- In Homebrew_PCBs@y..., "James Owens" <wotisname@l...> wrote:
> Hi,
> 
> I'm wanting to try and use my HP 7475A plotter to make circuit
boards. It
> has done nothing for many years and I can't find the book that came
with it.
> While cleaning I may have altered the DIP switches on the back for the
> serial port setting. Can someone post the settings I need to run
under WIN98

> on COM2.
> 
> Regards,
> 
> Terry