Firmware
Firmware 
Versions 2.415 and 33/35, * with Spindle Tool firmware, as of 10 May 2017
New software will often require new firmware. New software packages always come with the latest firmware at the time the software was released; however, sometimes newer firmware is available.
There are two families of firmware; one for the heads, or STM-103 boards, and another for the motion controllers, or STM-427 / STM-407 boards.
Print Head / Hot Bed Firmware
For the STM-103 Boards.
Video instructions for flashing the 103 (HH/HB) Controllers: https://youtu.be/yM8QMZBTb4o
| Filament Heads | Firmware |
|---|---|
| MK1-250 | _FIL_250_PLAT_1A.hex |
| MK1-250 with red RTDs (from 2013, 2014) | _FIL_250_RED_235A.hex |
| MK2-250 | _FIL_250_PLAT_1A.hex |
| MK1-450 | _FIL_450_45A.hex |
| Emulsion-Type Heads | Firmware |
| All Standard Emulsion-type Heads | _TUBES_35K.hex |
| With COD or Clench Valve tied to Printing Moves Only | _TUBES_49V.hex |
| Laser Heads | Firmware |
| Diode on Repetrel v2.x | _LASER_R2_234.hex |
| Diode and CO2 on Repetrel v3.x | _LASER_R3_PWM_6L.hex |
| Spindle Tools | Firmware |
| 1- and 3- Phase Spindle Tools | _DrillMill_2.3.hex |
| Inkjet Heads | Firmware |
| All Inkjets: Heat- and Piezo- based | _INKJET_6E.hex |
Motion Controller Firmware
For the STM-429 and STM-407 Boards
Video instructions for flashing the 103 (HH/HB) Controllers: https://youtu.be/yM8QMZBTb4o
| Printer Model | Repetrel Version | Firmware |
|---|---|---|
| All Hydra Models | Repetrel 3.07x | Hydra 3.07x |
| Engine, High Resolution | Repetrel 3.07x | Hydra 3.07x |
| System 30M | Repetrel 3.07x | Hyrel 3.07x |
| Repetrel 2.865 | 2.414 | |
| Engine, Standard Resolution | Repetrel 3.07x | Hyrel 3.07x |
| Repetrel 2.865 | Version 2.414 |