Works on My Machine certification badge

thingiverse

Our QA engineer pointed me to an old Coding Horror blog post featuring the "works on my machine" certification program (ahem). I therefore created a printable version so he can award developers with a physical badge the next time their code goes belly up and they resort to this excuse. Update 2016/10/12: New model with cleaner mesh. Now comes in three variations. The original one as shown in the photos is 'ico', where the round top surface is created with an icosphere (a.k.a. buckyball). The 'UV' version is created with a typical sphere that may result in a smoother print. Finally, there's a flat version which is recommended if you print this at a rougher layer height. Update 2017/03/09: Added a split model of the UV version for dual-strusion prints (_m1 and _m2). This also has slightly fatter letters that should not require XY compensation to print without gaps. Print Settings Printer Brand: FlashForge Printer: Creator Pro Rafts: No Supports: Doesn't Matter Resolution: 0.1 mm Infill: 25% Notes: Silver ABS, acetone vapor treated. Used XY size compensation in Slic3r to ensure the letters came out alright. If you want the letters in a different color, swap filament at the 4.0 mm layer for the rounded models or 3.6 mm layer for the flat model. How I Designed This Blender Workflow Not sure if this is the most efficient way but hey... it worked on my machine! To create the 30-toothed badge outline: Create two (mesh) circles with 30 vertices, one a bit smaller than the other. Rotate one of them by 360°/30/2 = 6°. Join them, select all and delete 'only edges & faces'. Select all vertices and press F. To create the curved text draw two Bézier circles. After tweaking the ellipse shapes use Ctrl-A and apply scale so the scale is 1.0 in all dimensions (repeat this whenever you tweak the shape of the ellipses afterwards). Type the text making sure its location coincides with the one of the curve it will be wrapped around. Next, use the curve modifier and select the appropriate curve, and X as deformation axis. The text can be centred by altering its X location. The tricky thing is the lower text ("machine"), it will be applied to the outside of the curve while we want it on the inside. To fix this edit the curve select all and in the Curve menu use 'Segments' -> 'Switch direction'.