240
edits
Project:PCB Making: Difference between revisions
From London Hackspace Wiki
→Real life example
Danielsikar (talk | contribs) |
|||
| Line 95: | Line 95: | ||
[[File:TQFP32_DIL32_EagleBRDFile.jpg|400px]] | [[File:TQFP32_DIL32_EagleBRDFile.jpg|400px]] | ||
* Cutting board to size, by scoring and snapping | * Cutting board to size, by scoring and snapping. | ||
[[File:cutting_to_size.jpg|400px]] | [[File:cutting_to_size.jpg|400px]] | ||
* Finishing the edges, to ensure good contact between transparency and board. | * Alternatively, the LHS now has a metal sheet cutter which makes for cleaner and less laborious cuts. | ||
[[File:Chopping.jpg|400px]] | |||
* Finishing the edges, to ensure good contact between transparency and board. If any of the edges are raised, UV light can get under the transparency and definition is lost on thin traces. | |||
[[File:finishing_edges.jpg|400px]] | [[File:finishing_edges.jpg|400px]] | ||
* Preparing for exposure. Double-up transparency for better results, or run through the printer two or three times to put down more toner | * Preparing for exposure. Double-up transparency for better results, or run through the printer two or three times to put down more toner. | ||
[[File:Developing_photoresist.jpg|400px]] | [[File:Developing_photoresist.jpg|400px]] | ||
* Alternatively, good results can be obtained by printing PCB artwork on paper. | |||
[[File:PaperPrint.jpg|400px]] | |||
* Peeling off protective layer. | * Peeling off protective layer. | ||
