DIY pcb making problem

[rephil]

Hi eplpwr,

Yes, your printer is a better solution than mine (HP 5652). I have had the opportunity to do some try with it, and I report that you get perfect transparencies in one pass, this using the Tartan 707 from 3M.

I suggest you to do a try. This Tartan costs here 19,90 Euro + VAT (here it is IVA quoted at 20%). You get 50 transparencies for your money.

Obviously, it is sold in Sweden as in all Europe as far as I know.

Best regards

rephil

[dfdye]

Originally posted by DJ Exprice
I'm saving up my money to buy a DGX Prototyper .

Yea, that is just a little out of my justifiable price range, but MAN would that be nice to have.

[SY]

Originally posted by eplpwr
How 'bout printing the conductive traces directly to a "naked" epoxy laminate?

Remarkably difficult, but possible. The major issue is not laying down the tracks but solderability. Usually, printed material has a polymeric binder which is the weak link, thermally speaking. If it survives solder temperatures, it tends to delaminate with very modest forces. Additionally, PTF inks tend to have a low conductivity; there are some workarounds, but they're exotic.

The "printed" circuits that work best are printed on a ceramic substrate, then fired. That's not very practical for home audio, I'm afraid.

[sss]

btw , the direct printing method wont work , i just tried to put the transparency under water (inkjet printer) and all the ink washed away
that way u can use the same transparency more then 1 time
maybe the "photo" colors are better , i dont know yet ......

[richie00boy]

I've a feeling my HP deskjet with proper HP ink is water safe. One easy way to find out I guess...

[masood]

Originally Posted by sagarverma

hi SSS,
i have recently upgraded to hp1022 laser printer(earlier was hp1010).
i have used toner xfer and photoresist,both.
my hp 1010 did a great job for both methods.
and now my hp1022 is also working alike(better....cant say,but certainly like b4).
good results for both methods by both printers.

dear sagaverma,
i am from kanpur up i use toner transfer method from technova transparent sheet ,my problem is that when i press n peel that sheet the image on copper board is very dim .i want to dark and smooth image on board any suggesion plz send me my e mail is khan.shahid251@gmail.com