Added pictures
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Readme.md
22
Readme.md
@@ -44,7 +44,7 @@ Using an MSLA (Masked Stereolithography) resin printer for creating PCBs is a te
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Here is why the **Anycubic Photon Mono 4** specifically is well-suited for this task:
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**1. Extremely High Resolution (10K Screen)**
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The standout feature of this printer is the **10K (9024 x 5120)** resolution on a 7-inch screen.
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The standout feature of this printer is the **10K (9024 x 5120)** resolution with a pixel size of 17µm (0.017mm) on a 7-inch screen.
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* **Why it helps:** In PCB fabrication, resolution dictates how thin your traces can be. A 10K screen provides an exceptionally small pixel pitch. To put this in perspective, this is equivalent to a print resolution of approximately **1500 DPI**.
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* *Calculation: The screen width is 153.4mm (6.04 inches). 9024 pixels / 6.04 inches ≈ 1494 DPI.*
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* This allows you to expose traces for fine-pitch SMD components (like TQFP or 0402 packages) with professional-grade sharpness, far exceeding what is possible with inkjet or laser-printed transparencies.
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@@ -68,9 +68,12 @@ The process involves exporting 2D layer images from your PCB design, converting
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* Chitubox (or your printer's slicing software)
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### Hardware
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* A resin 3D printer (e.g., Anycubic Photon Mono 4)
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* Photosensitive PCB. For consistent results, a pre-sensitized board like the **Bungard positive photoresist boards** is highly recommended due to its uniform coating. Available on [www.conrad.sk](https://www.conrad.sk/sk/p/bungard-150306e50-100x60mm-zakladny-material-jednostranna-35-m-foto-vrstva-pozitiv-d-x-s-100-mm-x-60-mm-1-ks-525472.html)
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* UV light curing Solder Mask e.g. from Mechanic
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* A resin 3D printer (e.g., Anycubic Photon Mono 4)
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<img src="images/Anycubic_Photon_Mono4.png" alt="Anycubic Photon Mono 4" width="400"/>
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* Photosensitive PCB. For consistent results, a pre-sensitized board like the **Bungard positive photoresist boards** is highly recommended due to its uniform coating. A good example is [Bungard 16x100 double sided](https://www.conrad.sk/sk/p/bungard-120306z33-zakladny-material-dvojstranna-35-m-foto-vrstva-pozitiv-d-x-s-160-mm-x-100-mm-1-ks-529176.html).
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<img src="images/Bungard_PCB.png" alt="Bungard PCB" width="400"/>
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* UV light curing Solder Mask e.g. from Mechanic.
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<img src="images/Mechanic_UV_Solder_Mask.png" alt="Mechanic UV Solder Mask" width="400"/>
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### Installation
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@@ -93,9 +96,10 @@ This guide was developed to work with Inkscape 1.2.2 and Blender 5.0.0
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1. Open your PCB project in the KiCad PCB Editor.
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2. Go to **File -> Plot** and select `Plot format` as `SVG` and set the `Output directory`.
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3. In the `Include Layers` section select one layer (e.g. `F.Cu`, `F.Mask` or `F.Silkscreen`). If you select multiple layers they will be ploted as separate files.
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4. Optionaly, select additional layer(s) e.g. `Edge.Cuts` in the `Plot on All Layers` section. This way you can merge layers (e.g. front copper layer with board outset) into a single svg file.
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5. Click **Plot** and **Close**.
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3. In the `Include Layers` section select layers `B.Cu`, `B.Mask` and `F.Silkscreen`. Each layer will be ploted as a separate SVG file.
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4. Optionaly, select additional layer(s) e.g. `Edge.Cuts` in the `Plot on All Layers` section. This way you can merge layers i.e. add board outset into each file generated.
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5. Click **Plot** and **Close**.
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<img src="images/KiCad.png" alt="KiCad" width="500"/> <img src="images/KiCad_Plot.png" alt="KiCad Plot" width="500"/>
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### 2. SVG to STL Conversion
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@@ -212,7 +216,6 @@ THICKNESS_MM="0.1"
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EXPORT_DPI=1494
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```
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**Usage:**
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```bash
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./svg2stl.sh my_design.svg
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@@ -253,7 +256,8 @@ Since the minimum exposure time per layer is 0.1s and maximum 200s, calculate th
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* **Normal Exposure Time:** `200 s` (This will apply to the 3 normal layers, giving 3*200 = 600s total).
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4. **Crucially, turn off Anti-aliasing**. Go to the "Advanced" tab and set **Anti-aliasing**. This ensures the sharpest possible pixels for crisp traces.
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5. Slice the model and save the file to the USB drive.
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5. Slice the model and save the file to the USB drive.
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<img src="images/Chitubox.png" alt="Chitubox" width="1000"/>
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### 4. Exposing the Board
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