1strand An open source g-code generator for 3d printers that makes parts from a single continuous extrudate.

Current files:

Most recent project is notaslicer (notaslicer16.html as of writing), a javascript tool for specifying a 3d printing paths with the mouse and keyboard.

All the older stuff is in python 2. Shapes.py, 1stranda009.py, printconfig.py are one package working towards a complex design tool.

bushinga003 standalone bushing program. Pick an ID, OD, and height, printer settings are hardcoded.

BushingDeCruft2 is an effort to abstract more of the work into functions. Doesn't work yet.

Major known problems: Circles and rectangles follow the path of their alleged outer coordinates, so everything is big by half an extrusion width Feedrate is set to 480 hardcoded. My printer seems to move much slower than 480mm/s, but much faster than 480mm/min My printer also makes angry noises at the start of the print, probably from the plain Z move Program crashes when input is unexpectedly not floating point number No extrusion "priming", skirt or brim functions.

a002 hardcoded parameters for a 1cm square/cube

a003 User-entered parameters for an arbitrary rectangle and printer.

a004 Actually tested to produce a physical rectangle. Corrected G-code syntax in final line

a005 Added circle and tested to create physical circle. Added untested prompt/choice for the shape. Moved rectangle function and circle to shapes.py

a006 Added save / load settings to config.txt

a007 Added output to output1.gcode. Overwrites without prompting.

a008 Added and tested keyboard input coordinates. Created save and function for any shape.

a009 User interface has a main program loop, and abstracts printer option handling to printconfig.py

bushinga001 Standalone tool for bushings. Currently produces seam and Z-shift point, mostly hardcoded inputs.

bushinga002 Mostly blended out seam at Z-shift with a 0, 0.25, 0.75, 1.0 movement.

bushinga003 Fixed bug with inside seam blend, and added a +10 z-movement to the end of print.

Immediate Goals: Perimeter following coordinates from spreadsheet Create objects with paths that end somewhere other than they start, but reverse the process each layer so the strand isn't broken Perfect Bushing Tool Clone copies of objects to print sequentially. Parallel would require extruder stoppage, which kind of defeats the point. Fillet radii

Long Term Goals: All kinds of printer hardware optimization/kludges Object creation interface CAD file input Non-planar prints