build:thermal
Differences
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| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| build:thermal [2026/08/03 23:07] – [Thermal etching] nigel | build:thermal [2026/08/12 22:25] (current) – [Steps] nigel | ||
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| * Isopropyl alchohol. | * Isopropyl alchohol. | ||
| * Acetone. | * Acetone. | ||
| - | * Etchant mix. | + | * [[etchant|Etchant mix]]. |
| * Permanent marker (like a Sharpie). | * Permanent marker (like a Sharpie). | ||
| * Some sheets of kitchen roll. | * Some sheets of kitchen roll. | ||
| Line 30: | Line 30: | ||
| ==== Steps ==== | ==== Steps ==== | ||
| - | - In KiCad add some alignment holes somewhere near the corners of each side of your design being sure they are all equally distant from the edge, for the pins I'm using I create these on the F.Cu and B.Cu layers and give them a radius of 0.3mm to match the pins I use later. Run the DRC and be sure they don't clip anything they should not. | + | - In KiCad add some alignment holes somewhere near the corners of each side of your design being sure they aligned front on top of back, for the pins I'm using I create these on the F.Cu and B.Cu layers and give them a radius of 0.3mm to match the pins I use later. Run the DRC and be sure they don't clip anything they should not. |
| - Now trim your PCB to size, I tend to give it a but of extra length (5-10mm each end) to give me a location to grip as I'm working with it. Then clean the PCB, I sand the surface lightly with a 400 grit then using some kitchen roll clean the surfaces with the Isopropyl Alcohol. DO NOT touch these surfaces afterwards other than using the end parts. | - Now trim your PCB to size, I tend to give it a but of extra length (5-10mm each end) to give me a location to grip as I'm working with it. Then clean the PCB, I sand the surface lightly with a 400 grit then using some kitchen roll clean the surfaces with the Isopropyl Alcohol. DO NOT touch these surfaces afterwards other than using the end parts. | ||
| - From KiCad plot SVGs of the F.Cu (mirrored) and the B.Cu (NOT mirrored). I then use Inkscape to put both of these on the same page then I print that page, in Inkscape I set the Paper Type to be ' | - From KiCad plot SVGs of the F.Cu (mirrored) and the B.Cu (NOT mirrored). I then use Inkscape to put both of these on the same page then I print that page, in Inkscape I set the Paper Type to be ' | ||
build/thermal.1785798425.txt.gz · Last modified: by nigel