- Max. 255 minutes runtime
- Fix: wash cycles
- New filter cleaning mode
- Travis build was removed
The maximum run time was set to 255 minutes for all operations.
Wash cycles were not performed correctly after rotator run time changes.
Added a new “filtering” mode for cleaning IPA with a filter. This is another washing mode without changing the direction of rotation with its own speed and running time. Value settings are in the usual places. There is a new item “IPA Filtering” in the main menu. Please refer to the updated user manual for further use of the filter.
Building with Travis is no longer supported and future releases will not be released using this system due to the limiting of terms of use on the Travis side.
- Code refactoring and optimizations
- Automatic fans control
- New heating algorithm for CW1 device
- Set all timers to max. 60 minutes
- Do not handle info pages as menus
- Change motor direction while washing
- Factory reset
- Improved self-test
- Allow to extend the run time to a defined maximum
- Updated documentation
- The code for CW1 and CW1S was splitted into separate files for easier modifications.
- The Makefile was improved to support the build of different devices via command line option.
- Pluggable USB in USBCore library was dissabled to save space. It was not used.
- Menu with live values of fans RPM and temperatures was removed to save space. It was used only for debugging purposes and had no importance for the user.
Prior to this version, the fans were set to a fixed speed. The fans are now controlled according to the cooling demand. In most cases, they can remain at the lowest possible speed and increase to the maximum only when the temperature rises. This may affect device noise during certain operations.
The heating method was changed for original CW1. Newly, it tries to maintain the set temperature in the chamber. CW1 can only switch the heating on and off and, as a result, the temperature in the chamber fluctuates. These adjustments were necessary for longer heating times, when CW1 significantly overheated the chamber. If you have had your favorite heating temperatures, you need to revise these settings. Please note that the maximum allowed temperature of 60 ˚C (140 ˚F) is the limit and may affect the life of the device.
All operations (curing, drying, washing, resin preheating) can now take up to 60 minutes.
The information page is displayed as scrolling text only and allows you to view the entire serial number.
For washing, it is now possible to set the number of washing cycles. One cycle is the rotation of the impeller in one direction. The length of one cycle is calculated from the total washing time so that all cycles last the same time. This could improve the efficiency of washing prints. The default value is one cycle, i.e. washing without changing direction as before.
In the advanced settings (long press in the settings), a factory reset is now available, which applies the default settings of all configurable values.
The UV LED and heater test run only for the necessary time instead of a fixed time.
The increase of run time during the ongoing operation was limited to 10 minutes. Newly, this value is the maximum for each operation (60 minutes).
The README has been updated and a CHANGELOG has been created.
- Support for CW1S
- Drying temperature increased (CW1S)
- Drying session extended
- Hold the platform (new feature)
- Improved translations
This is the final release of firmware 3.1.0, the first firmware release with
support for both the CW1 and the new CW1S. Attention, the firmware is not universal, each device requires its own firmware file!
This release of the firmware brings support for the recently announced Original Prusa Curing and Washing Machine CW1S. The CW1S features a reworked heating system, which required a completely redesigned heating algorithm.
As mentioned above, the CW1S brings reworked internals with the aim to improve its drying capabilities. This firmware release enables CW1S owners to increase the target temperature up to 60 °C. Note that the limit for CW1 is 40 °C.
Previously, the system allowed for a 10 minutes drying session. This is now extended to 60 minutes for both CW1 and CW1S.
Original Prusa CW1S brings a removable platform protected with an FEP film. Once there is a bigger amount of residue on the film, it might be necessary to replace it with a new one. To help align the platform back to its original position, the user can activate “Hold the platform” from the menu.
The motor gets “locked” (rotation is disabled) by the system, temporarily allowing the user to align the platform properly. Once the platform is properly seated, exit the menu to “unlock” the motor.
Since there are some changes to firmware 3.1.0, the translators have rechecked all the language strings. Should you find any incorrect translations, please let us know.
- Code refactoring and optimizations
- Firmware localized into 7 languages
- Resin preheat
- Extended curing time
- Factory self-test
- Updated user manual
The firmware for the CW1 was refactored in order to provide more space in the memory for new features and also to lower the CPU load. Most of the work on the code is not visible to the user, however, it was needed for the new functions introduced in this release.
Until now, the firmware for the Original Prusa CW1 was available only in the English language. With this release, we are adding support for more languages. Apart from English, users can now also select:
- Czech
- German
- Spanish
- French
- Italian
- Polish
Each language is distributed as a separate firmware file. For example to
install the German language select the file
Prusa-CW1-Firmware-de-v3.0.0-rc.1.hex, connect the CW1 to your computer and
flash the file over PrusaSlicer.
Some advanced resins, for example, those used in the dental laboratories, require elevated temperatures in order to improve the viscosity. Without raising the temperature of the resin, the print will in many cases fail or the model won't be exposed to the UV light properly.
Based on the feedback from our customers, we have added this preheat feature to the CW1. Insert the resin in a bottle in the CW1, close the cover and from the menu select “Resin preheat“. Based on the requirements of your resin, you can adjust the time in the range of 1 - 30 minutes and the temperature 20 - 40 °C.
Advanced resins sometimes require longer curing periods and for this reason, the time was extended to 1 hour (60 minutes). Several resins were tested in our laboratory and the recommended curing times with CW1 will be included in the resin datasheet (RDS) on our eshop.
Before every unit of CW1 is sent to the customer, a series of tests is performed to ensure the machine works as expected. The testing procedure is now part of a semi-automated test routine, with the following parts:
- Cover switch (semi-automatic)
- IPA tank detection (semi-automatic)
- Motor test - platform rotation (semi-automatic)
- Cooling fans (automatic)
- UV LED (automatic)
- Heater (automatic)
The technical documentation was updated and is covering all the changes and new features introduced in this firmware. You can download an online copy of the CW1 user manual from here https://prusa3d.com/drivers
- Fan speed optimization
The RPMs of the fan were optimized to lower the level of noise.
- Initial version release