Homebrew PCBs

Or you could attach a pager motor to the outside of the etching tank.

http://www.pagermotors.com/index_files/English/Parts.htm

Ed Okerson

>      In article ,
>     Peter Johansson  wrote:
>  > Here's a thought on agitation:  Find a gear motor that runs somewhere
>  > arround 30 RPM.  Mount a disc perhaps 2-3 inches in diameter with an
>  > offset center to the motor.  Mount underneath one edge of the tray.
>  > Might something like this do the trick?
>
>  How about sitting the tray on the cone edges of an old loudspeaker - say
>  about an 8". With a tone generator and an amplifier you could
> experiment
>  with different frequencies to see which produced the desired effect -
>  ultrasonic?
>
>
>
>   Be sure to visit the group home and check for new Bookmarks and files:
>  http://groups.yahoo.com/group/Homebrew_PCBs
>
>
>       Yahoo! Groups Sponsor     ADVERTISEMENT
>
>   Yahoo! Groups Links
>   To visit your group on the web, go to:
> http://groups.yahoo.com/group/Homebrew_PCBs/
>   To unsubscribe from this group, send an email to:
> Homebrew_PCBs-unsubscribe@yahoogroups.com
>   Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.