Torus for iPhone home 3d printing model set 1

thingiverse

OpenGL video game objects adapted to FDM printing. Torus for iPhone is a free download available now on the iTunes App Store at http://uplink.to/73w These models were first 3D printed by using SLS (see photos). The text was too small to be legibly printed by FDM so the text was moved from the side (OK with selective laser sintering) to the top and enlarged for the FDM process. The score value side text on the tori was also too small for FDM so it was converted to roman numerals. Each Torus represents an attained high score in the game. torusFDM_III.stl - 3000 points torusFDM_VI.stl - 6000 points torusFDM_IX.stl - 9000 points torusFDM_XII.stl - 12000 points The highest recorded Torus for iPhone score was 14800 on April 24th, 2009. The Shapeways version of the Torus Base Hook can be purchased at http://shpws.me/mQ2R - Torus high score Shapeways 3D printed tori models can only be purchased via Torus for iPhone when a score achievement is unlocked. Visit http://www.playtorus.com for more information. Torus dimensions: 40mm x 40mm x 14mm Base dimensions: 50mm x 50mm x 17mm Instructions Preparing the base hook for fused deposition modeling presented two main problems. The size of the text was just too small for the extruder on my Printrbot jr, and printing a vertical post ended up a blob of molten plastic without enough time for each layer to cool before depositing the next one. The first solution was to develop a model with two seperate posts, so that a short time would pass for a layer to cool as the extruder moved to the other side, I moved them as far apart on the base as possible to maximize this cooling period. This solution is embodied in the model torusFDM_Base2.stl The solution to getting a single post to print was explained to me at a TechShop Makerbot class in San Francisco - once the model has been sliced, edit the gcode to move the extruder away briefly per layer. The gcode file is a flat sequential text file, the instructions for the first layer are at the beginning of the file, with the last layer instructions being at the end. So I was able to find where the solo post codes were and added G1 X0.0 Y0.0 at the end of each layer. This solution is in torusFDM_Base_edited.gcode You can see a short video of the extruder of my Printrbot jr moving to XY home every layer as it prints the post at http://uplink.to/7e0 The gcode was generated by Slic3r 0.9.7 with the parameters shown here, from a Printrbot jr config file ; layer_height = 0.3 ; perimeters = 2 ; top_solid_layers = 3 ; bottom_solid_layers = 2 ; fill_density = 0.7 ; perimeter_speed = 30 ; infill_speed = 60 ; travel_speed = 130 ; scale = 1 ; nozzle_diameter = 0.5 ; filament_diameter = 3.00 ; extrusion_multiplier = 1 ; perimeters extrusion width = 0.70mm ; infill extrusion width = 0.70mm ; first layer extrusion width = 0.30mm Load this file directly instead of the STL file and print as usual, but beware it was sliced for a particular Printrbot jr setup and may not be appropriate for your local configuration. I also had a small fan blowing cold air over the print while the post layers were being deposited.