Graber i3
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Release status: Working
| Description | Prusa i3 est un projet mené par S.Graber (This is Prusa i3, only almost all parts in MDF)
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| License | |
| Author | |
| Contributors | |
| Based-on | |
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| CAD Models | |
| External Link |
This is a stub for the Graber i3: https://github.com/sgraber/Graber [DXF and SketchUp files available]
Laser cut parts can be ordered here: http://twelvepro.com/index.php?route=product/product&path=66_59&product_id=52
and here: http://220v.biz/3d
The Graber i3's design is uniquely suited towards building it with a laser cutter or even a simple CNC cutting machine, such as the Shapeoko. It derives from the original Prusa i3 design, and replaces all 3D-printed parts for completely wooden ones.
Build volume: 200 x 200 x 200 mm
Bill of Materials
This list may be incomplete!
The metric figures below are meant to be equivalent to their imperial counterpart - they might not be an exact fit. M3 nuts will be to small for the provided slots (thus the strikethrough); M5 nuts would be wide enough, but the screw holes only have a diameter of 3.5mm. One possible solution is to use M3 nuts+M3 washers. Find some M3 washers that have an outer diameter of 8mm, and use one washer per screw to make it a secure fit.
If you are laser-cutting the wooden pieces yourself, you will need two 810 x 460mm pieces of 6mm thick MDF.
| Qty | Metric | Imperial |
|---|---|---|
| 2 | M5 x 292mm | 5mm x 11.5" (Z-Axis) |
| 2 | M8 x 51mm | 5/16" x 2" (y-belt idler) |
| Qty | Metric | Imperial |
|---|---|---|
| 2 | 8mm x 317mm | 8mm x 12.5" (Z-Axis) |
| 2 | 8mm x 342mm | 8mm x 13.5" (Y-Axis) |
| 2 | 8mm x 400mm | 8mm x 15 3/4" (X-Axis) |
| Qty | Metric | Imperial |
|---|---|---|
| 15 | M3 x 10mm (for stepper motors) | |
| 6 | |
6-32 x 0.5" |
| 41 | |
6-32 x 3/4" |
| 4 | M3 x 20mm (Heated Bed) | |
| 3 | M3 x 25mm (RAMPS mount) | |
| 2 | |
6-32 x 1" |
| 4 | |
6-32 x 1,1/4" (X-Car) |
| 8 | |
6-32 x 1,1/2" |
| 1 | M8 x 30mm | |
| 1 | M8 x 40mm |
| Qty | Metric | Imperial |
|---|---|---|
| 7 | M3 Nut Nylon Insert | |
| 61 | |
Nut 6-32 Nylon Insert |
| 2 | M5 Nut | |
| 2 | M8 Nut | Nut 5/16" |
| Qty | Metric | Imperial |
|---|---|---|
| 6 | |
Washers 6-32 |
| 2 | M8 Washers | Washers 5/16" |
| Qty | Item |
|---|---|
| 4 | Spring (heated bed mount) |
| 7 | Zip Tie 4" |
| 2 | bearing 608zz (for Y and X idler) |
| 2 | Flexible 5 mm x 5 mm Shaft Coupling OR 20mm lenth of PVC Tubing (Z-Axis) |
| 10 | LM8UU linear bearing |
| 1 | Extruder w/ 0.3mm Nozzle for 1.75mm Filament w/ 100k NTC |
| 1 | Wade Gear |
| 2m | (7 feet) GT2 belt 6mm width |
| 2 | GT2 20-Tooth Pulley 5mm Shaft |
| Qty | Item |
|---|---|
| 1 | Mega2560 R3 ATmega2560 |
| 1 | RAMPS 1.4 |
| 1 | MK2B Dual Power PCB Heat Bed |
| 3 | Micro Switch (end stops) |
| 1 | RAMPS 1.4 LCD12864 Intelligent Controller LCD Control Board (optional, for standalone operation) |
| 5 | Nema 17 Stepper motor |
| 5 | A4988 Stepper Motor Drive Module |
| 1 | 12V 15A power supply unit |
