update_3d_printing

docs/projectmanagement.html

@@ -184,6 +184,37 @@
                             <p><img src="images/week16/week16.26.jpg" width="80%"; max-width="700" /></p>
                         
                         
+                            <h1>Week 18. Project Development</h1>
+                        
+                            <p>This week I started with the assembly of the structure of the modules that make up the model. In my case there are three modules. I follow the <a href="http://maquetren.net/wp-content/uploads/2019/04/Modulos-Maquetren-H0-via-unica-recto-MQ40.pdf"><b>Maquetren regulations.</b></a> I use 10mm plywood and cut some part with the laser. Speed 5% Power 90% 5000 Hz 400 Dpi.</p>
+                        
+                            <span class="image main"><img src="images/project/week18.01.jpg" alt="" /></span>
+                        
+                            <p>Using a 30 x 30 mm bar and screws, join all the pieces to obtain the modules.</p>
+                        
+                            <span class="image main"><img src="images/project/week18.02.jpg" alt="" /></span>
+                        
+                            <p>Using the CNC and polystyrene I mill the base of the composite as in <a href="week16.html"><b>Wildcard Week.</b></a></p>  
+                        
+                            <span class="image main"><img src="images/project/week18.03.jpg" alt="" /></span>
+                        
+                            <p>Once all the pieces with polystyrene glue are joined, this is the result.</p>
+                        
+                            <p><img src="images/project/week18.04.jpg" width="70%"; max-width="700" /></p>
+                        
+                            <p>I prepare the burlap with the laser and start the epoxy resin mixing process. Similar to <a href="week16.html"><b>Wildcard Week.</b></a></p>
+                        
+                            <span class="image main"><img src="images/project/week18.05.jpg" alt="" /></span>
+                        
+                            <p>I take advantage of the composite's curing time to design the box that contains the electronics, to achieve system integration. I print the prototype of the box in 3D printing, I have to adjust a hole to place the connectors.</p>
+                        
+                            <span class="image main"><img src="images/project/week18.06.jpg" alt="" /></span>
+                        
+                            <p>Once the composite has cured, I remove it from the polystyrene mold and adjust it to the module, cutting it with the Dremel. I glue the composite to the model frame with hot silicone. The first module is ready.</p>
+                        
+                            <span class="image main"><img src="images/project/week18.07.jpg" alt="" /></span>
+                        
+                            <p>Working progress... </p>
                         
                             <h1>Files</h1>
                             <p>Find below the files that I made for this final project.</p>

docs/week05.html

@@ -296,6 +296,9 @@
                             <h2>Conclusions</h2>
                             
                             <p>It is incredible as with the same design and the same printer, the pieces shrink or grow depending on the materials. The times are very similar between all the pieces, it is rare the keychain made with FilaFlex takes so long.</p>
+                
+                            <p>One of the factors that affect 3D printing is the design (if we design pieces smaller than the nozzle size); also if we use supports or not; and the material we use (depends on the retractions).</p>
+                            <p>This implies <b>limitations in 3D printing.</b> If we want to make very small pieces with great detail, we must use a 0.25 mm <b>nozzle</b> for example. If we <b>design</b> a piece with 45º inclinations, we will not need supports, since having them we can break details of the piece. And the <b>material,</b> for example the Filaflex or the Corkfill, is' more complex to print, because it suffers from retractions and the final piece can vary in size.</p>
                     
                             <p>Here is the <b>files</b> to download. <a href="assignments/week05/jarron_lowpoly.3mf"><b>Vase Lowpoly</b></a> and <a href="assignments/week05/Llavero%20prueba%20filamento.3mf"><b>Keychain</b></a> </p>
                             
@@ -440,7 +443,7 @@
                                     
                             <span class="image main"><img src="images/week05/week05.47.jpg" alt="" /></span>
                                     
-                            <p>The final result; It is very weak and needs to be supported because it falls off the weight that is not balanced.</p>        
+                            <p>The final result; It is very weak and needs to be supported because it falls off the weight that is not balanced. Here I have had several problems that limit me in 3D printing. The design is not suitable for the 0.6mm nozzle, it has too many supports and the Corkfill is difficult to print due to the retractions too.</p>        
                             <p><img src="images/week05/week05.48.jpg" width="80%"; max-width="700" /></p>  
     
                             <h2>Week 11. Support 3D servo.</h2>