Enhanced version of the LC Graber printer.
Adds enhancements in the DXF file for quick assembly.
##Features :

• uniform screw length ( also Y-motor )
• side casing , to hold printer electronics and hide cables
• room and holes for optionally adding a Raspberry Pi ( octopi )
• adjustable Z-stop holder
• ergonomic Y-base with standoffs in acryl to mount your heated bed
• spool holder

Some hints on how to assemble it : ( Google plus album with comments ) : https://plus.google.com/photos/115690326669403396385/albums/6088528423505737665

The file graber++-v3.0.dxf is the most current iteration.
BOM :

+---------------------------------------+-----------------------------------------------------+----------+
| element | function | quantity |
+---------------------------------------+-----------------------------------------------------+----------+
| Rods | | |
+---------------------------------------+-----------------------------------------------------+----------+
| 340mm of 8mm smooth rods | Y/Z axis rods | 4 |
+---------------------------------------+-----------------------------------------------------+----------+
| 400mm of 8mm smooth rods | Z axis rods | 2 |
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| | | |
+---------------------------------------+-----------------------------------------------------+----------+
| 333mm m5 threaded rod | Z axis movement (leadscrews) | 2 |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
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| | | |
+---------------------------------------+-----------------------------------------------------+----------+
| Bearings | | |
+---------------------------------------+-----------------------------------------------------+----------+
| LM8UU linear bearings (SKF: LBBR8) | 4x X-axis, 4x Y-axis, 4x Z-axis | 12 |
+---------------------------------------+-----------------------------------------------------+----------+
| 608ZZ bearings | 1 for the X-axis idler, 1 for y axis | 2 |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
+---------------------------------------+-----------------------------------------------------+----------+
| Screws & nuts | | |
+---------------------------------------+-----------------------------------------------------+----------+
| M3 10mm | 3 X-motor, 8 Z-motor, 3 Y-motor | 14 |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
+---------------------------------------+-----------------------------------------------------+----------+
| M3 12mm | motors to base + belt clips | 8 |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
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| M3 30mm | attach heatbed | 4 |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
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| | | |
+---------------------------------------+-----------------------------------------------------+----------+
| M3 40mm | attach bed to rods | 6 |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
+---------------------------------------+-----------------------------------------------------+----------+
| M3 nuts | belt clips | 4 |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
+---------------------------------------+-----------------------------------------------------+----------+
| | attach heatbed | 4 |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
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+---------------------------------------+-----------------------------------------------------+----------+
| M3 o-rings | X-motor | 3 |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
+---------------------------------------+-----------------------------------------------------+----------+
| M4 70mm | Z-setscrew | 1 |
+---------------------------------------+-----------------------------------------------------+----------+
| M4 16mm | base | 36 |
+---------------------------------------+-----------------------------------------------------+----------+
| M4 30mm ( of 40mm ) | extruder to carriage | 2 |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
+---------------------------------------+-----------------------------------------------------+----------+
| M4 nuts | | |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
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| | | |
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| | | |
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| | | |
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| M5 nuts | z-rods - lift of X-carriage | 2 |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
+---------------------------------------+-----------------------------------------------------+----------+
| M8 o-rings | extruder | 5 |
+---------------------------------------+-----------------------------------------------------+----------+
| M8 40mm | X-idler , Y-idler | 2 |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
+---------------------------------------+-----------------------------------------------------+----------+
| Other | | |
+---------------------------------------+-----------------------------------------------------+----------+
| inches of ~5mm ID Rubber Tubing | Z-threads (M5) + around motor shaft | 2 |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
+---------------------------------------+-----------------------------------------------------+----------+
| 4" Zip ties | To attach Y-axis linear bearings to frame | 1 bag |
+---------------------------------------+-----------------------------------------------------+----------+
| 70 cm XL belt | Y axis' movement | 1 |
+---------------------------------------+-----------------------------------------------------+----------+
| 90 cm XL belt | X axis' movement | 1 |
+---------------------------------------+-----------------------------------------------------+----------+
| Heat bed binder clips | To fix glass to heated bed (kapton tape also works) | 4 |
+---------------------------------------+-----------------------------------------------------+----------+
| XL pulley ( 10t ) | X & Y axis motors | 2 |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
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| | | |
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| | | |
+---------------------------------------+-----------------------------------------------------+----------+
| Electronics | | |
+---------------------------------------+-----------------------------------------------------+----------+
| NEMA 17 stepper motor | | 5 |
+---------------------------------------+-----------------------------------------------------+----------+
| J-HEAD hotend kit | | 1 |
+---------------------------------------+-----------------------------------------------------+----------+
| MOLEX connector XL | | 1 |
+---------------------------------------+-----------------------------------------------------+----------+
| | | |
+---------------------------------------+-----------------------------------------------------+----------+
| Heated bed | for ABS plastic | 1 |
+---------------------------------------+-----------------------------------------------------+----------+
| Kapton tape | fix thermistor to hotbed | 1 |
+---------------------------------------+-----------------------------------------------------+----------+
| Printrboard electronics + install kit | | 1 |
+---------------------------------------+-----------------------------------------------------+----------+
| micro USB cable | | 1 |
+---------------------------------------+-----------------------------------------------------+----------+