Snappy Buyers Guide
The links and information below may fall out of date. The most up-to-date information can be found at the project's GitHub site:
- STL Files can be downloaded from the project's GitHub repository.
- A full Bill of Materials (BOM) is available at the project's Wiki.
- OpenSCAD Source Files are available at the project's GitHub repository.
- Assembly Instructions are also available at the project's GitHub repository.
Required Tools
You will need the following tools to assemble this printer.
Qty | Description |
---|---|
1 | Multimeter for checking wiring. |
1 | Soldering iron. |
1 | Small rubber mallet to help convince some parts to join. |
1 | Mineral oil for lubrication. |
1 | Fine grit sandpaper to clean up the rails. |
1 | Optional cyanoacrylate glue. (super-glue) |
Electronics
You'll need controller electronics to drive the Snappy. Here's what I recommend. Prices given are based on what I found on Amazon with a cursory search. All parts found had free shipping options. All costs are in US Dollars.
Qty | Description | Total Cost (US$) | Where Found |
---|---|---|---|
1 | Power Supply, 120W. (300W w/ Heated Bed) | 20 | Amazon.com |
1 | Controller electronics. (RAMPS1.4+2560+Pololus) | 45 | Amazon.com |
3 | Mechanical microswitch end-stops and wiring. | 5 | Amazon.com |
5 | NEMA17 Stepper Motors, 40mm length, 1m cable | 65 | Amazon.com |
1 | J-Head Extruder hot end w/heater, thermistor. | 32 | Amazon.com |
2 | 40mm 12v 2-pin cooling fan, 10mm thick. | 4 | Amazon.com |
1m | Wire, dual conductor, 22 gauge, stranded | 1 | Amazon.com |
1 | Heated Build Platform. (optional) | 9 | Amazon.com |
Hardware
You'll need the following Hardware to build the cartesian frame:
Qty | Description | Total Cost (US$) | Where Found |
---|---|---|---|
2.4Kg | Plastic Filament. (@ $30/Kg) | 72 | MatterHackers.com |
2 | ACME threaded rod, 3/8"-8 x 12" | 18 | McMaster.com |
1 | Extruder Drive Gear | 4 | Amazon.com |
1 | 686 bearing. | 1 | Amazon.com |
1 | Borosilicate glass build platform. (213x200mm) | 22 | Amazon.com |
4 | Mini binder clips. | 3 | Amazon.com |
Total Cost
Not counting shipping costs, time, and labor.
- ~$292 without Heated Bed.
- ~$310 with Heated Bed.
Printed Parts
All parts should be printable inside a 150mm x 135mm x 110mm build volume. The sled end-cap part, which is longer than 150mm, can be printed diagonally.
Recommended slicer settings:
- 3 perimeters layers
- 3 top and bottom layers
- 0.3 or smaller layer height
- 20% or better infill
- grid/rectangular infill
- No support necessary
- No Raft or brim necessary
You will need to print out the following parts:
Qty | Name | Download |
---|---|---|
1 | Slop Calibrator | download |
2 | Rail X-Y Motor Segment | download |
1 | Drive Gears | download |
4 | Motor Mount Plates | download |
10 | Rail Segment | download |
4 | X-Y Slider Sled | download |
2 | X-Y Joiner | download |
2 | Sled Endcap | download |
1 | Platform Supports | download |
2 | Rail Y Endcap | download |
2 | Y-Z Bottom Joiner | download |
4 | Support Legs | download |
2 | Rail Z Motor Segment | download |
2 | Lifter Rod Coupler | download |
2 | Lifter Lock Nut | download |
2 | Z Slider Sled | download |
1 | J-Head Extruder Platform | download |
1 | Extruder Motor Clip | download |
1 | Extruder Idler & Latch | download |
1 | Extruder Fan Shroud | download |
1 | Extruder Fan Clip | download |
1 | Cooling Fan Shroud | download |
1 | Rail Z Endcap | download |
1 | Spool Holder | download |
2 | Cable Chain Links | download |
1 | Cable-Chain Mounts | download |
And one of the following motherboard mounts, depending on which electronics you use:
Qty | Description | Download |
---|---|---|
1 | RAMPS MotherBoard Mount | download |
1 | RAMBo MotherBoard Mount | download |
So, overall, about 160+ hours of printing.