Firmware
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. Consult the table below for the proper version. The wrong version WILL NOT WORK.
Video instructions for flashing the 103 (HH/HB) Controllers: https://youtu.be/yM8QMZBTb4o
- Launch Repetrel ( C:\Repetrel\bin\Repetrel.exe ).
- Go to File > Update Firmware > Motion Controller
- Select the latest .dfu file for your machine from the table above.
- Your printer should show as "CONNECTED" in the firmware utility. If it is not:
- Access the Motion Controller.
- Change the vertical switch to BOOT CONFIG (away from the vertical switch).
- Reset the motion controller (small button left of the LED).
- You should now be CONNECTED.
- Click "Program" - the process takes a few seconds.
- IF you had to change the switch, change it back and reset the motion controller.
- You are done.
You should not have to flash new firmware on any heads, although some values have changed; please see the charts at Cold and Warm Flow and Hot Flow for details.
| 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 Emulsion-type Heads (including mixing heads) | _TUBES_35K.hex |
| With COD or Clench Valve tied to Printing Moves Only | _TUBES_49V.hex |
| Laser Heads | Firmware |
| Diode Lasers on Repetrel v2.x | _LASER_R2_234.hex |
| Diode and CO2 Lasers on Repetrel v3.x | _LASER_R3_PWM_6L.hex |
| Spindle Tools | Firmware |
| Spindle Tools (1- and 3- Phase) | _DrillMill_2.3.hex |
| Inkjet Heads | Firmware |
| Inkjet Headss (Heat- and Piezo- based) | _INKJET_6E.hex |
Print Head / Hot Bed Values
Let's not confuse flashing a version of firmware on a head with flashing new default values to a head. I know - I didn't come up with the terms.
Once your head has the proper firmware version running on it, you want to be sure that the values for the head are correct. Please consult the pages for Cold and Warm Flow and Hot Flow for our recommended values, then adjust for your custom environment as needed, determined through trial and observation.
To change the values, click on the arrow at the top right (next page) or the temperature display area at the top left (previous page) of the displayed data for that head. Edit values as appropriate, and then on the last page, RIGHT-CLICK on the Flash button and then confirm that you want to overwrite the previous defaults with these values, then click Yes on the confirmation dialog box.
For our purposes, the hotbed and a printhead are controlled in the same manner.
Motion Controller Firmware
For the STM-429 and STM-407 Boards.
Video instructions for flashing the 407 and 429 (Motion) Controllers: https://youtu.be/cFAFRkpLmww
Note that all units shipped since 2015 are internally cabled to automatically connect for flashing, so there should be no need to remove the rear cover or connect special cables.
| Printer Model | Repetrel Version | Firmware |
|---|---|---|
| All Hydra Models (3-, 4- and 5- axis) | Repetrel 3.082_x | Hydra 3.082_x |
| Engine, High Resolution | Repetrel 3.082_x | Hydra 3.082_x |
| System 30M (and earlier Systems) | Repetrel 3.082_x | Hyrel 3.081_x |
| Repetrel 2.865 | Version 2.414 | |
| Engine, Standard Resolution | Repetrel 3.082_x | Hyrel 3.082_x |
| Repetrel 2.865 | Version 2.414 |
Motion Controller Values
Let's not confuse flashing a version of firmware on the motion controller with flashing new default values to the motion controller - again, not my terms.
We should always be sure that we're running not only with the correct version of the motion controller firmware, but that the values for the present model of equipment are being used. In Repetrel, under Settings > Printer, a dialog box will open with lots of numbers you may want to play with. Please don't change any values unless you're sure that they will do something that you want. We have default files for each model, and some users will want to save custom settings - like different park positions for different beds, or different maximum print speeds and acceleration parameters for more heavily outfitted yoke assemblies.
There is a utility to read and write configuration files on every PC running Repetrel v3 at C:\repetrel\Printer Settings, and you should run on (or at least start with) the configuration file for your model printer.
Please resist the urge to go tampering here without talking to us. There's probably a better way to achieve your desired end results.