1
\$\begingroup\$

Is it possible/practical to use a heat gun instead of an iron to transfer toner when making your own PCBs? Can you get a uniform heat pattern without for a small board? Is enough heat applied from the heat gun to actually transfer the toner?

\$\endgroup\$
3
\$\begingroup\$

From my experience with iron-based toner transfer you really need to apply lots of pressure to get the toner to transfer properly. I tried lots of different techniques (>10 tries) before finding the correct paper, correct/sufficient pressure across the board was important.

I suggest you try with an iron first and then move on to heat guns. I'm interested in your findings.

\$\endgroup\$
1
\$\begingroup\$

This is just a crazy idea I got, but...

Build your own little contraption consisting of two sheet of metal, say aluminum, and drill 4 wholes in the corners. Add some nuts and bolts through said wholes to apply pressure, and lastly apply heat. This could be with a big-ass heat gun, or even a (domestic) oven.

Report back with the results if you try it. :)

\$\endgroup\$
  • \$\begingroup\$ I think that you will have problems with getting even pressure distribution over the whole metal sheets. Some areas may get good contact while other may be loose. \$\endgroup\$ – jpc Apr 10 '11 at 22:00
  • \$\begingroup\$ I tried pretty much this. To apply even pressure, I used some silicon rubber foam (about 1/4" thick) on either side of the board. Then it went into the oven. It worked OK, but not great. You have to leave it in the oven a while for the heat to diffuse through the foam, which acts like an insulator. But silicone can handle the heat. It might work better with a thin silicone sheet instead. \$\endgroup\$ – Carl Raymond Apr 11 '11 at 22:34
0
\$\begingroup\$

Yep, so for anyone else looking at this, I tried it and it seems like you do need the pressure of the iron. Heat gun is a no go.

\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.