Project:PCB Making: Difference between revisions

Project:PCB Making (view source)

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 == Tried and Tested Settings ==
+===JasperWallace 11-12-2010 ===
+* plain paper, mirrored with the toner side next to the board.
+* I used an upside down hackspace storage box with a light under it as a light box for alignment (it was a double sided board).
+* I used the shear press brake for cutting the boards, it does mangle the edges a little, so be careful when peeling off the protective film that it dosn't take off some of the photo resist with it.
+* for long thin boards it's hard to get them square in the brake press.
+* 5 mins in the uv box (for each side).
+* didn't time the developing of the photoresist in the sodium silicate, just agitated it by hand until it was obviously done.
+* one board done with the 'recycled' clear etchant, took 40 mins on the agitator .
+* 2nd board done with a mix of ferric chlorides, the fresh stuff is quickest, next time i'll get it properly warmed 1st.
+* A drop of meths on some paper towel is fine for removing the photo resist.
+* Drilled in the milling machine, move along only one axis when drilling a row of holes for DIP devices make all the holes stay in line.
+* drilling is really tedious, [[Pledges/CNC_Mill]].
+* My board was slightly off square so not all the hole in one axis were truly on the same axis.
 ===pingbat & samthetechie 14-Oct-2010===