User:Asj/Notes about laser cutting solder stencils: Difference between revisions
< User:Asj
Created page with "Most pads are ok - perhaps a bit large. Small pitch QFN packages are a problem. To do these, * For each QFN pad, downsize "solder paste absolute clearance" to -0.09 and prod..." |
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Most pads are ok - perhaps a bit large. | Most pads are ok - perhaps a bit large. | ||
* Change the pad clearance in Lightburn | |||
** File -> Board Setup -> Solder Mask Paste | |||
* | ** "Solder paste absolute clearance" -> -0.09mm | ||
* Configure Light burn to engrave at | * Configure Light burn to engrave at | ||
** 100mm/s at | ** 100mm/s at 28% | ||
** Line interval of 0.02mm | ** Line interval of 0.02mm | ||
I like to soak a piece of paper in water and put it below the mylar. This helps reduce burning and warping | |||
Latest revision as of 21:29, 20 May 2024
Most pads are ok - perhaps a bit large.
- Change the pad clearance in Lightburn
- File -> Board Setup -> Solder Mask Paste
- "Solder paste absolute clearance" -> -0.09mm
- Configure Light burn to engrave at
- 100mm/s at 28%
- Line interval of 0.02mm
I like to soak a piece of paper in water and put it below the mylar. This helps reduce burning and warping