Snappy

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Crystal Clear action run.pngSnappy
working
Snappy small.png
Snappy RepRap v1.1i
General
Description A cheap, printable 3d printer that snaps together with almost no screws, rods, belts, or strings, and uses only one bearing.
License GPL
Team Members RevarBat
Based-on Sui Generis
Files GitHub
Forum Snappy RepRap Dev Forum
Categories Category:3D printers
Machine Specifications
Current Version 1.1i
Dimensions Length: 480mm [18.9"]
Width: 530mm [20.9"]
Height: 550mm [21.7"]
Build Envelope Length: 185mm [7.3"]
Width: 185mm [7.3"]
Height: 180mm [7.0"]
Materials Printed PLA, ABS with optional HBP
Replication By parts: 72% w/o cable chains, 79% with.
Build Cost (≈) US$292
Technology FFF


This article is about the Snappy RepRap 1.1i Printer.

PLEASE NOTE: This is the current home for community generated documentation (Please Contribute!). The official Snappy documentation is maintained at GitHub. Please refer to that site as well.

Received Honorable Mention in the (un-awarded) Gada Grand Personal Manufacturing Prize!

Contents

Overview

Snappy is an Open Source RepRap 3D printer designed by RevarBat from July 2014 to December 2015. It is a true RepRap, using very few non-printed parts. This design needs no belts, pulleys, metal rails, and almost no screws outside of the motors or extruder hot-end. This means that you should be able to put one together for under $300, including the price of plastic to print parts. The entire thing snaps together, and you should be able to assemble it from parts in only a couple hours. The few required non-printable parts are available world wide from a variety of suppliers.

A prototype of the 0.93 version of the Snappy RepRap 3d Printer

Snappy is an original design, created in OpenSCAD, so many individual design parameters can be altered to fit the end user's specific needs.

You can see video of a prototype of Snappy version 1.1i running here.

Specifications

These specifications are for the Snappy RepRap 1.1i:

  • Printed Parts: around 57 different parts, not counting cable chains.
  • Non-Printed Parts: Motors. Electronics. Glass build plate. 2 ACME threaded rods. One 686 bearing.
  • Printing Size: build area of about 7.5" x 7.5" x 7.5" or 19cm x 19cm x 19cm
  • Material Cost: US$ 85
  • Cost: Under US$ 300 (all parts, including plastic)
  • Precision: about 0.05mm XY, 0.01mm Z
  • Speed: 100mm/sec (position), 60mm/sec (printing)

Non-Printed Parts

The full list of non-printable parts for v1.1i are:

  • 1 Power supply (12V, 120W)
  • Controller electronics (RAMPS is cheap!)
  • 3 Mechanical limit micro-switches
  • 5 Stepper motors (NEMA17, 40mm long, 1.5A/phase)
  • Wiring
  • 2 ACME Threaded Rods, 3/8"-8 x 12"
  • 1 Bearing (686)
  • 2 Cooling fans (40mm)
  • 1 Standard J-Head MkV extruder hot end
  • 1 Extruder drive gear
  • 1 Borosilicate glass build platform (about 200mm x 200mm)
  • 4 Mini binder clips

Files and Documentation