Firmware
Visit the MakerGear Firmware Selector to download the correct firmware for your printer.
M2 Revision History
| Start Date | REV | Level | Z-End Stop | Start Height | Power Supply | Hot End | Z-micro steps | Z motor | HBP | Extrdr. Gear | Motor Mount | Glass | Pinion Gear | 50mm Fan | Rambo | 40mm Fans | Rambo case | PS Case |
| A | 3 Point | Min/ Top | Manual w/ screw | 19V | V3a | 1/8 | Silver 1.0 | Before Igus | Coarse Tooth | Plastic | Untaped | Std. | 12 V | 1.1 | 12 V | Plastic | Plastic | |
| Aug 2013 | A.1 | 3 Point | Min/ Top | Manual w/ screw | 19V | V3a | Silver 2.0 | Before Igus | Coarse Tooth | Plastic | Untaped | Std. | 12 V | 1.1 | 12 V | Plastic | Plastic | |
| Oct 2013 | B | 3 Point | Min/ Top | Manual w/ screw | 24V | V3b | 1/16 | Silver 2.0 | Before Igus | Coarse Tooth | Plastic | Untaped | Std. | 12 V | 1.2 | 12 V | Plastic | Plastic |
| Mar 2014 | B.1 | 3 Point | Min/ Top | Manual w/ screw | 24V | V3b | Silver 2.0 | Before Igus | Coarse Tooth | Plastic | Untaped | Std. | 24 V | 1.2 | 12 V | Plastic | Plastic | |
| Aug 2014 | B.2 | 3 Point | Min/ Top | Manual w/ screw | 24V, w/ switch | V3b | Silver 2.0 | Before Igus | Coarse Tooth | Plastic | Untaped | Std. | 24 V | 1.3 | 12 V | Plastic | Plastic | |
| Feb 2015 | B.3 | 3 Point | Min/ Top | Manual w/ screw | 24V, w/ switch | V3b | Silver 2.0 | Before Igus | Coarse Tooth | Plastic | Untaped | Std. | 24 V | 1.3 | 12 V | Metal | Plastic | |
| Apr 2015 | B.4 | 3 Point | Min/ Top | Manual w/ screw | 24V, w/ switch | V3b | Silver 2.0 | Before Igus | Coarse Tooth | Plastic | Untaped | Hardened | 24 V | 1.3 | 12 V | Metal | Plastic | |
| Jul 2015 | C | 3 Point | Min/ Top | Manual w/ screw | 24V, w/ switch | V4 | Silver 2.0 | Before Igus | Coarse Tooth | Plastic | Untaped | Hardened | 24 V | 1.3 | 12 V | Metal | Metal | |
| Sep 2015 | C.1 | 3 Point | Min/ Top | Manual w/ screw | 24V, w/ switch | V4 | Black | with Igus | Coarse Tooth | Plastic | Untaped | Hardened | 24 V | 1.3 | 12 V | Metal | Metal | |
| Nov 2015 | D | 3 Point | Min/ Top | Manual w/ screw | 24V, w/ switch | V4 rev D | Black | with Igus | Coarse Tooth | Metal | Untaped | Hardened | 24 V | 1.3 | 24 V | Metal | Metal | |
| Jan 2016 | D.1 | 3 Point | Min/ Top | Manual w/ screw | 24V, w/ switch | V4 rev D | Black | with Igus | Coarse Tooth | Metal | Taped | Hardened | 24 V | 1.3 | 24 V | Metal | Metal | |
| Feb 2016 | E | 4 Point | Max/ Btm | Manual w/ gcode or quickstart | 24V, w/ switch | V4 rev D | Black | with Igus | Coarse Tooth | Metal | Taped | Hardened | 24 V | 1.3 | 24 V | Metal | Metal | |
| May 2016 | E.1 | 4 Point | Max/ Btm | Manual w/ gcode or quickstart | 24V, w/ switch | V4 rev D | Black | with Igus | Fine Tooth | Metal | Taped | Hardened | 24 V | 1.3 | 24 V | Metal | Metal | |
| August 2018 | F | 4 Point | Max/ Btm | Manual w/ gcode or quickstart | 24V, w/ switch | V4 rev D | 1/16 | Black | with Igus | Fine Tooth | Metal | Taped | Hardened | 24 V | 1.3L | 24 V | Metal | |
| October 2018 | G | 4 Point | Max/ Btm | Manual w/ gcode or quickstart | 24V, w/ switch | V4 rev D | 1/16 | Black | with Igus | Fine Tooth | Metal | Taped | Hardened | 24 V | 1.3L | 24 V | Metal |
**Older Models may have discontinued hotends** (v3a and v3b)
Additional M2 Updates
- M2 Rev F
- Added new cooling to M2
- New end stop activator for X
- Endstops now use NC (Normal Closed) contacts
- Motor wiring changed so all red wires on motors point toward the front of the RAMBo (USB side)
- M2 Rev G
- M3 Frame / build for some parts (Top plate?)
- new pulleys (80.1 steps /mm)
- M2 Rev H
- Now uses the M3 Z-Stage
M3-SE Revision History
- M3SE REV 0 - May 2017
- M3SE REV 1 - April 2018
- Touch probe
- Top plate/z stage updates
- Now upgradable to an M3ID Rev 1
M3-ID Revision History
- M3ID REV 0 - May 2017
- M3ID Rev 1 - April 2018
- Touch probe
- Top plate/z stage updates
Ultra One Revision History
- REV-2
- REV-3
- REV-4