snappy-reprap

A parametric design for a cheap self-replicating 3D printer (reprap) that snaps together to minimize screws and non-printed parts.

Building the STL files

The Makefile currently defines $OPENSCAD for building on OS X:

OPENSCAD=/Applications/OpenSCAD.app/Contents/MacOS/OpenSCAD

Under Linux, you can change that to:

OPENSCAD=openscad

Under Windows, you'll probably have to open each *_part.scad and *_parts.scad file individually and manually export the STL files.

Printing the parts

You will need to print out the following parts:

Count	Part File
1	cap_parts.stl
1	drive_gear_parts.stl
1	motor_mount_plate_parts.stl
2	rail_with_motor_mount_part.stl
1	rails_90deg_joint_part.stl
2	rails_end_part.stl
7	rails_part.stl
1	roller_parts.stl
3	sled_end_parts.stl
2	support_leg_part.stl
2	xy_joiner_parts.stl
4	xy_sled_part.stl
1	z_platform_joint_part.stl
1	z_sled_part.stl

Required Vitamins

You'll need the following un-printable parts:

Count	Description
1	RAMBo controller electronics.
1	60 Watt 12v Power Supply
3	End-stop micro-switches and wiring.
3	NEMA17 Stepper Motors, Less than 35mm length
1	NEMA17 Stepper Motor, High Torque.
1	Wiring for Extruder Heater.
1	Wiring for Extruder Thermistor.
1	J-Head Extruder.
1	Threaded rod, 300mm x 8mm.
1	Nut, 8mm.
2	M3x15 Socket Screws.
18	M3x10 Socket Screws.
4	M3 Nuts.
16	M3 Washers.
6	M2x15 Socket Screws.
6	M2 Nuts.
1	Spring. (TODO: determine size)
2	M3x20? socket screws. (TODO: determine actual size)
2	M3x20? countersunk screws. (TODO: determine actual size)
1	Extruder Drive Gear.
1	M2 Extruder drive gear set screw.
2Kg	Plastic Filament. (TODO: determine actual amount.)

Required Tools

You will need the following tools to assemble this printer.

• 3mm hex wrench.
• 2mm hex wrench.
• Small flathead screwdriver.
• Small phillips screwdriver.
• Medium-Grit Sandpaper.
• Possibly cyanoacrylate glue. (super-glue)

Assembly instructions

TBD