pcb

[rick]

hi carl-


tried out that iron on transfer film for


making pcb..that stuff is interesting


and a lot less effort than the photo


techniqe...got it on the first try---


with the iron set low temp--had a sheet of


teflon film to use in btwn. in case of


iron sticking--it was not required..


too bad the dreaded pen is required in a few


places---but not too bad--


did not expect the blue to go with the toner--


interesting to use the toner as an adheasive..


did try a little hotter--phenelic warped a little


and cu got a little discolored under blue/no toner


what software did you use to generate the artwork


and laser printer--600dpi--mine 300


just a words- to make pcb with pads as a surface


mount type--bend pins in on std. dip at the knee


and solder in place---save much time less drill.


except feedthrough (could bend pins out also).


do same for resistors etc...practical approch.


reg-rick

[Carl]

Re: pcb

>tried out that iron on transfer film for


>making pcb..that stuff is interesting


>and a lot less effort than the photo


>techniqe...got it on the first try---


>with the iron set low temp--had a sheet of


>teflon film to use in btwn. in case of


>iron sticking--it was not required..


>too bad the dreaded pen is required in a few


>places---but not too bad--


The key to success is clean, CLEAN, CLEAN!!! Then don't touch the copper surface, & make sure there are no edge burrs.


>did not expect the blue to go with the toner--


>interesting to use the toner as an adheasive..


>did try a little hotter--phenelic warped a little


>and cu got a little discolored under blue/no toner


Yes, I've noticed this too.


>what software did you use to generate the artwork


>and laser printer--600dpi--mine 300


600dpi, although my 300dpi is pretty good.


>just a words- to make pcb with pads as a surface


>mount type--bend pins in on std. dip at the knee


>and solder in place---save much time less drill.


>except feedthrough (could bend pins out also).


>do same for resistors etc...practical approch.


Yes, surface mount is easier, but I like to socket my IC's, esp those $24 ones.


- Carl

[rick]

Re: thanks again n/t

>>tried out that iron on transfer film for
>>making pcb..that stuff is interesting
>>and a lot less effort than the photo
>>techniqe...got it on the first try---
>>with the iron set low temp--had a sheet of
>>teflon film to use in btwn. in case of
>>iron sticking--it was not required..


>>too bad the dreaded pen is required in a few
>>places---but not too bad--


>The key to success is clean, CLEAN, CLEAN!!! Then don't touch the copper surface, & make sure there are no edge burrs.


>>did not expect the blue to go with the toner--
>>interesting to use the toner as an adheasive..


>>did try a little hotter--phenelic warped a little
>>and cu got a little discolored under blue/no toner


>Yes, I've noticed this too.


>>what software did you use to generate the artwork
>>and laser printer--600dpi--mine 300


>600dpi, although my 300dpi is pretty good.


>>just a words- to make pcb with pads as a surface
>>mount type--bend pins in on std. dip at the knee
>>and solder in place---save much time less drill.
>>except feedthrough (could bend pins out also).
>>do same for resistors etc...practical approch.


>Yes, surface mount is easier, but I like to socket my IC's, esp those $24 ones.


>- Carl

[Erich Kern]

Re: pcb

Fat Quarters Software (me and Laurie) are having some PCB's made. They'll be ready in a week; by Oct. 22nd. All the holes will be drilled too! See the last page of Carl's article for details.
Regards,
Erich


>>tried out that iron on transfer film for
>>making pcb..that stuff is interesting
>>and a lot less effort than the photo
>>techniqe...got it on the first try---
>>with the iron set low temp--had a sheet of
>>teflon film to use in btwn. in case of
>>iron sticking--it was not required..


>>too bad the dreaded pen is required in a few
>>places---but not too bad--


>The key to success is clean, CLEAN, CLEAN!!! Then don't touch the copper surface, & make sure there are no edge burrs.


>>did not expect the blue to go with the toner--
>>interesting to use the toner as an adheasive..


>>did try a little hotter--phenelic warped a little
>>and cu got a little discolored under blue/no toner


>Yes, I've noticed this too.


>>what software did you use to generate the artwork
>>and laser printer--600dpi--mine 300


>600dpi, although my 300dpi is pretty good.


>>just a words- to make pcb with pads as a surface
>>mount type--bend pins in on std. dip at the knee
>>and solder in place---save much time less drill.
>>except feedthrough (could bend pins out also).
>>do same for resistors etc...practical approch.


>Yes, surface mount is easier, but I like to socket my IC's, esp those $24 ones.


>- Carl