Flow-The customizable Bic case

thingiverse

Hello everyone! I'm a 13-year-old boy from Spain and I love technology. I got a Prusa i3 Hephestos 3D printer on Christmas and I've designed a few things to print them out, but this is my first public design. I created a replacement for the boring transparent part you find in a Bic pen. With this model, students can make their own designs and take them to class for writing. I spent the last 15 days learning how to use OpenSCAD so I could create a customizable project. I hope you like it! Print Settings Printer: Prusa i3 Hephestos Rafts: Yes Supports: No Resolution: I recommend 0.06, but you can use other settings Infill: 100% Notes: If you're printing with PLA, use more lacquer than normal. How I Designed This First, I thought about the shape of the three available models. I decided to design them with a hexagonal shape, a cylindrical shape, and a twisted hexagonal shape. The first two were easy, but I spent a lot of time on the last one. HEXAGONAL MODEL Create an hexagon with a hole. difference() { cylinder (r=4, h=124, $fn=100); translate ([0,0,2]) cylinder (r=2.2, h=125, $fn=50); } Create the upper part. translate ([0,0,124]) difference() { cylinder (r1=4, r2=3.096, h=9, $fn=100); translate ([0,0,-0.5]) cylinder (r=2.2, h=140,$fn=50); } CYLINDRICAL MODEL The same as the hexagonal model, but with "$fn=6" instead of "$fn=100". TWISTED HEXAGONAL MODEL Create a flat hexagon and extrude it with the twist tool. Make a hole. difference() { linear_extrude (height=124, twist=248, slices=300) circle (r=4, $fn=6); translate ([0,0,2]) cylinder (r=2.2, h=125, $fn=50); } Create the twisted upper part. This took me hours to figure out. translate ([0,0,124]) difference() { linear_extrude(height=9, twist=18, slices=100, scale=0.8) rotate ([0,0,-8]) circle(r=4,$fn=6,scale=0.8); translate ([0,0,-0.5]) cylinder (r=2.2, h=140,$fn=50); } ADDING TEXT Download and include the Write.scad library. use Write your text here. translate ([Name_size/2,-2.4,Distance_to_bottom]) rotate([90,-90,0]) write(Write_here_your_name, t=Font_thickness, h=Name_size, font=Font, space=Spacing); FINISHED! Project: Innovative Customizable Pen Objectives Give people a way to personalize their pens. Innovate in Thingiverse. MY GOAL: Learn how to use OpenSCAD. Audiences Everyone who uses Bic pens. 3D modeling classes can use the model for learning scale() and linear_extrude() tools. Preparation Students must know how to use OpenSCAD: 2D shapes Translate() Rotate() Variables Difference() Union() If statement Step 1: Think about your pen design You can do any design you want. Just remember these measures: Part that keeps its same radius along its height --> 124mm Part that decreases its radius along its height --> scale 1:0.8 Hole for the Bic --> radius = 50 Step 2: Design it Write the SCAD code to generate a STL file. Step 3: Print and test it Print your own model and test it by introducing a Bic inside. If the hole isn't the right size, you can change the value and print it again. FINISHED!