3D printing – shapeoko

One option is to draw geometry in a 2D program such as Inkscape, export to .dxf, then import that into OpenSCAD as shown in http://www.appropedia.org/Converting_2D_images_to_3D_for_printing_using_open_source_software or to directly export to OpenSCAD using a plug-in such as http://libregraphicsworld.org/blog/entry/inkscape-gets-openscad-converter

Communication program which allows submission of jobs, previewing, monitoring and control through a web interface. Unique in being suitable for Grbl as well as 3D printer firmwares. New version will round to 3 decimal places to preclude the too long line problem. Instructions for installing on a Raspberry Pi. Original version. Setup on Windows, Setup on Raspberry Pi

The cold end (often referred to as an extruder itself) moves the filament of a diameter to match that of the hot end at varying rates of feed under the control of the microcontroller running the selected firmware.


Most designs use a "hobbed" bolt which has grooves cut into it which serve as teeth to engage the filament and allow it be fed into the hot end.

Before attaching the hot end, an extruder should be configured as to the number of motor steps required to feed a given length (or volume) of filament. A precise calculation isn’t possible given variations in the effective diameter of the hobbed bolt and characteristics of different sorts of filament and variations in diameter from roll-to-roll.

E# is the number of the temperature control module, here it would be 0 for the hotend. The command runs for 8 loops, heating up, cooling down, and trying new values. Then will display settings which have been loaded into memory, but not written to your config file. Edit your configuration to use those three values ( Kp is p_factor, Ki is i_factor, Kd is d_factor ). [40]

This is a function of your nozzle diameter — 80% of it bounds your maximum, so for an 0.35mm nozzle: 0.35 * 0.8 = 0.28mm max. layer height. Minimum is defined by your patience and time and the ability of your machine to move accurately and precisely in the X, Y plane. Affects bond strength, for good cross-layer strength do not use layer heights taller than 60% of nozzle diameter. [46]

A further consideration is how it interacts w/ the # of steps which the motors must take to move a given distance depending upon one’s belts or screws: Taxonomy of Z axis artifacts in extrusion-based 3d printinglayer height should always be an even multiple of the smallest distance which a machine moves w/ a full step. Discussion: https://www.reddit.com/r/3Dprinting/comments/3zqwii/til_make_sure_your_layer_height_is_a_multiple_of/ Perimeters

• Bronzefill — https://plus.google.com/u/0/app/basic/stream/z12jzbdiamyzzvep104cgbzacsvsjjmx5n40k?cbp=1w6lp1p9g6yfl&sview=27&cid=5&soc-app=115&soc-platform=1&spath=%2Fu%2F0%2Fapp%2Fbasic%2Fa%2Fautoload%2F%2BGinaH%25C3%25A4u%25C3%259Fge%2Fposts&sparm=cbp%3D2jfvhya4d2lo%26sview%3D27%26cid%3D5%26soc-app%3D115%26soc-platform%3D1%26stct%3DEgkIoN3Mvoj8vwIo6LCW-5SGwAIw8ZvYkPuGwAI4AUAC

• ABS can be placed w/in acetone vapours to smooth parts out. [99] The acetone can either be heated (outdoors and w/ good ventilation) or arranged in a vapor chamber (one way to get even fume distribution is to make a cylinder of paper towels along the outside of the container, reaching from the bottom where the acetone is poured to the top, where it is sealed).

Glossary ABS Acrylonitrile Butadiene Styrene, a thermoplastic used as a 3D printer filament Bowden Cold-end extruder design which moves the motor and gearing away from the print head, mounting them on the frame so as to reduce weight. Cartesian From the geometry, a 3D printer design w/ traditional X-, Y-, and Z-axes. Cold-end Geared portion of an extruder (q.v.) which allows a stepper motor to move filament for extrusion. Delta 3D printer design using three identical columns arranged in a triangle. Extruder Assembly which handles feeding and extruding filament. Consists of two sub-assemblies: a cold end to feed the filament, and a hot end that melts and extrudes it. E3d Manufacturer of a popular hot-end: http://e3d-online.com/ Filament Raw plastic material in the form of long strands of a consistent diameter, 1.75mm and 3mm are typical. Available in different colours and materials. Hot-end The final portion of an extruder (q.v.) which contains the heating element for melting the plastic, and a thermistor for monitoring the temperature. J-Head Standard hot-end design: http://reprap.org/wiki/J_Head_Nozzle NURBS Non-uniform rational basis spline (B-spline), a mathematical technique using polynomials to describe smooth curves or surfaces. PID Feedback tuning system used in adjusting temperature, PID stands for Proportional, Integral, and Derivative. PLA Polylactic Acid. A biodegradable thermoplastic polymer used as a 3D printer filament. Essentially starch which has had the monomer changed into a polymer by heat. Skirt Initial circuit of extruded plastic made around the area of a model. STL Standard Tessellation Language or Stereo Lithography ( file format), a representation of a 3D model using triangle meshes. c.f., NURBS.