wc

docs/3D Scanning and Printing.md

@@ -20,15 +20,11 @@ This week I made some 3d printed tools and 3d scanned using photogrammetry.
 3D printing is an additive form of manufacturing. It has a lot of advantages and disadvantages, by my understanding throughout this week, I have listed some below. Like Neil says, 3D printers are to FabLabs, what microwaves are to kitchens. They can do some parts but not replace all of manufacturing.  
 
 First advantage is that waste is minimised, because you use only the material that is required in the final product.  
-It is ideal for rapid prototyping, as it can make complex geometries that you traditionally need more than one processes to make. It is good for custom and small-scale mass customization production processes, but not necessarily for mass manufacturing. It also doesn't have the best accuracy and tolerances, so not ideal for applications where precision is important.
+It is ideal for rapid prototyping, as it can make complex geometries that you traditionally need more than one processes to make. It is good for custom and small-scale mass customization production processes, but not necessarily for mass manufacturing. It also doesn't have the best accuracy and tolerances, so not ideal for applications where precision is important. But it is fast, user-friendly and therefore very accessible.  
 
 The most widely used technology for 3D printing is Fusion Deposition Modelling (FDM). I will use FDM printers this week. There is also SLA, Stereolithography and Powder Bed Printing 3DP.  
 
-This presentation from Santi is a good resource for the subject.  
-
-<div class="deck-embed js-deck-embed" data-ratio="1.41436464088398" data-state="processed">
-    <div class="speakerdeck-embed" data-title="false" data-skip-resize="true" data-id="fa816b69ff634303b5992b0fbddf0ec9" data-name="3D PRINTING - 2018/19" data-ratio="1.41436464088398" data-host="speakerdeck.com"></div>
-</div>
+This [hubs.com knowledge base](https://www.hubs.com/knowledge-base/additive-manufacturing-process/) has very good information about the subject. Also this [BCN local documentation](https://fablabbcn-projects.gitlab.io/learning/fabacademy-local-docs/material/week05/).   
 
 1. Testing Design rules
 ---

docs/Wildcard.md

+#Flatbed cutting
+---
+This week I used a flatbed cutter to make an origami laptop stand.  
+
+###Contents
+1. Introduction
+2. Designing for Flatbed cutting
+3. Setup
+4. Cutting
+5. Folding
+6. References
+7. Design files
+---
+
+1. Introduction
+---
+A Digital flatbed cutters are the perfect solution for prototyping and producing packaging, displays, textiles, and signage. They are easy to operate with short set-up times. The wide range of tools and add-ons make them extremely versatile for a multitude of applications such as . They are integral for commercial signage, display, packaging, PPE and specialty manufacturing and cutting applications. They are widely used in rapid manufacturing, specialty manufacturing and prototyping applications.
+
+A flatbed cutter basically has a knife blade on a pivoting point to cut through material like paper, vinyl, cardboard, foam board, some plastics and films. It can also have other tools like a pen to draw in large format, a creasing tool, etc.  
+![](./images/wc/tools.jpg)  
+
+I wanted to learn about different basic operations of the cutter like cutting, half-cuts and creasing.
+Half-cuts and creasing both allow for folding in opposite directions. For this I chose an origami based project so I could explore folding in both directions - mountains and valleys.  
+
+I found this laptop stand design by [Grape Lab](https://thegrapelab.org/en/) that I thought was interesting to make.  
+![](./images/wc/grape.jpg)  
+
+FabLabSP has a [JWEI](https://www.jweicut.com/cb08ii.html) cutter that I used.  
+It has a precision of +/-0.01mm, and can be used with a variety of tools like oscillating knife, offset knife, rotary knife, snip knife, cursor, drawing... It can cut materials including UV material, outdoor printing fabric, light sheet, gridding cloth, flag fabric, stickers, KT board, PVC expansion sheet, corrugated paper, honey comb board etc. upto 50mm thickness depending on the material and the tool selected.  
+![](./images/wc/jwei.jpg)  
+
+2. Designing for Flatbed Cutting
+---
+Unlike lasercutting and CNC milling, flatbed cutting doesn't have any kerf, because the blade is simply slicing through material like a vinyl cutter.
+
+I made my CAD in Rhino. Separated different operations by layers.  
+Note that for the software to recognize these layers, they have to be named exactly like defined in the Rolling locator.  
+Meaning tool K (Pen 1) - Cut  
+Tool K1 (Pen 2)- Creaseline   
+Tool K-half (Pen 3)- V-cut  
+![](./images/wc/layers.jpg)  
+
+
+
+3. Setup
+
+
+K-action
+![](./images/wc/k.jpg)  
+
+K1-action
+![](./images/wc/k1.jpg)  
+
+
+
+K and K-half is done with the same tool, but at different heights (z-axis).  
+For 3mm cardboard I used K-half at 5mm.
+![](./images/wc/cardboard-thk.jpg)  
+
+For juteboard I used thickness of 0.5mm and K-half at 0.9mm. This is the +ve Z distance from the bed level.  
+![](./images/wc/board-thk.jpg)  
+
+
+4. Cutting
+Home
+![](./images/wc/homescreen.jpg)
+
+Inching
+![](./images/wc/inching.jpg)
+
+Set origin
+![](./images/wc/temp-origin.jpg)