build:thermal
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| build:thermal [2026/08/03 22:55] – nigel | build:thermal [2026/08/12 22:25] (current) – [Steps] nigel | ||
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| This documents the process I'm currently following when etching things. I've documented what I do for a two sided board, if your doing a single sided then simple drop the steps for alignment and protecting each side. | This documents the process I'm currently following when etching things. I've documented what I do for a two sided board, if your doing a single sided then simple drop the steps for alignment and protecting each side. | ||
| - | Note when handling ANY chemicals I recommend you use gloves and safety glasses. I also tend to use an apron in case of splashes but that's more optional, it just saves clothes, gloves and glasses save you and your eyes! | + | Note when handling ANY chemicals I recommend you use gloves and safety glasses. I also tend to use an apron in case of splashes but that's more optional, it just saves clothes, gloves and glasses save you and your eyes! I also recommend having a well ventilated space some of these chemicals smell rather bad and are not good for you, especially the acetone. |
| ==== Software ==== | ==== Software ==== | ||
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| * 400 grit sand paper and block. | * 400 grit sand paper and block. | ||
| * Isopropyl alchohol. | * Isopropyl alchohol. | ||
| - | * Acetone((I recommend using gloves and eye protection every time you use ANY chemicals.)) | + | * 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. | ||
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| ==== 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.1785797741.txt.gz · Last modified: by nigel