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>my query is have you had much trouble of misregister
>when applying (xfer) the toner ?? does it slip around.
No, actually I place the film on the board and gently apply the iron (I use a variable temp monokote iron) in the center. This sticks the film down. I then gently move the iron out from the center to all the edges making sure that I don't drag it too hard so it does not try to "pull" the film. Once I have all of the film tacked down I just go over it very thoroughly with the iron.
>do you ridgidly attach pcb to table and also edge
>of xfer film ?? and have you looked at/for any
>distortion of the film????
Again, no - I just lay the board on a table, lay the film on the board, carefully hold it in place with my fingers, and go. I don't know how much the film distorts when you iron it. It seems to be pretty stable, and the area within a DIP footprint is dead on the money. As long as this is the case, I can tolerate a little distortion over the entire board if it does so, unless I'm trying to do a double-sided.
>presently use positive etch resist with excellent
>results--but have not tried this method yet,and
>think for the pcb's here-5mil traces some--between
>.1 center chips ????????? not to rebuke that which
>works (photo) but to investigate other methods...
>(remember those resist pens) your comments would
>be welcome.
Tell you what, Rick - email me a postal address and I will send you a couple of films for my mag PCB, essentially what you saw in the report. You can try one out for yourself and see if you like.
- Carl
>when applying (xfer) the toner ?? does it slip around.
No, actually I place the film on the board and gently apply the iron (I use a variable temp monokote iron) in the center. This sticks the film down. I then gently move the iron out from the center to all the edges making sure that I don't drag it too hard so it does not try to "pull" the film. Once I have all of the film tacked down I just go over it very thoroughly with the iron.
>do you ridgidly attach pcb to table and also edge
>of xfer film ?? and have you looked at/for any
>distortion of the film????
Again, no - I just lay the board on a table, lay the film on the board, carefully hold it in place with my fingers, and go. I don't know how much the film distorts when you iron it. It seems to be pretty stable, and the area within a DIP footprint is dead on the money. As long as this is the case, I can tolerate a little distortion over the entire board if it does so, unless I'm trying to do a double-sided.
>presently use positive etch resist with excellent
>results--but have not tried this method yet,and
>think for the pcb's here-5mil traces some--between
>.1 center chips ????????? not to rebuke that which
>works (photo) but to investigate other methods...
>(remember those resist pens) your comments would
>be welcome.
Tell you what, Rick - email me a postal address and I will send you a couple of films for my mag PCB, essentially what you saw in the report. You can try one out for yourself and see if you like.
- Carl
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