UMO / UMO+ Firmware

[Amedee]

I just meant Marlin is not the only firmware for AtMega micro controllers -- E.g. Repetier is another one, there are others. Of course they would need to be configured for UMO...

To come back on the plans of my fork, i have re-build my environment and I will provide the motor current tuning Neotko is keen to have. I am traveling to Germany this week-end, so it will be sometime next week

[Neotko]

Thank you amedee!!

[LePaul]

Moved this to the new Firmware section under Software and Electronics

[Amedee]

Here we go

As I already mentioned, I want to keep a stable and tested firmware on https://bultimaker.bulles.eu
I normally don't push anything which isn't fully tested.

On the other hand there are some fair requests here, I am happy to make improvement, but I don't always have time to make in-depth testing, or I just don't have the right hardware for that.
So here is the plan: I have created a new 'experimental' branch where I will push new features. For the ones using the builder, there is an experimental one based on that branch: https://bultimaker.bulles.eu/experimental/

When I get sound positive feedback over the experimental features, I'll merge them in the main tree and continue to develop in the experimental.

Hope this all makes sense to you.

As I kind of promised to look at saving motors current settings, I started with that one, so here is the changelog for this first experimental release

• Added a 'sub-version' field to the EEPROM settings to be able to extend the amount of data saved without having to reset all the saved settings
• Motors current are now saved in the EEPROM as well. There is no user-interface (yet), so you have to use the GCode from the console:
  - Set current with M907 (e.g.: M907 X1100 Z1200 E1300 )
  - Save in EEPROM with M500

(Commit)

Enjoy / feedback welcome

[Neotko]

Awesome! Now I need time to finish the pancake feeder thanks Amedee!

[nilrog]

Nice, once i'm up and running I can/will take the experimental version for a spin now and then to help you with some testing.

[Amedee]

I made the user interface as well, went faster than expected

So it is a sub-menu in the Control menu.

(Commit)

[Amedee]

There is a new commit in the experimental branch

This is mainly of interest for the OctoPrint users (and the Pronterface ones to a lesser extend): when you print from USB, you can now pause/resume your print from the controller

I needed this to have filament detection working with USB prints, but there is also a nice application for that: I like to be near the printer when I start a print. Now I don't have anything else than the Pi around the computer. One option would be to have a control screen on the PI (like Martin), but I don't want to have anything more than the controller. With this feature, I just need to add a 'M0' / Pause in the 'Before print' GCode from OctoPrint, the print will pause at start and I can release it from the controller when I'm ready!

More info on the '// action:command' protocol here and there.

[Neotko]

(There are also alternative firmware which could be explored )

Enlighten me

Up till I saw this thread I thought there were only one FW for the UMO+. Yes, I had seen your site where you could build custom versions, including GT2. But I thought it was just a nice configurator around UM's FW.

I have tried to gather info on interesting mods for the UMO+. But trying to find something in their forum is almost impossible. Unless it's for the UM2(+).

jonnybischof

(testing this so he get's a notification.

He did post long a go https://ultimaker.com/en/community/5103 ... ion?page=1 it has one of the most extend list of mods for umo.

[Amedee]

I edited the first post with a summary of the changes ...

[martin-bienz]

Amedee, thank you! I will install it soon:) Great job with the current user settings AND I like the pause from octoprint workflow!

[Neotko]

I'll like to ask if could be posible to add an option to reverse the feeder from the ulticontroller

Thankssss

[jonnybischof]

(There are also alternative firmware which could be explored )

Enlighten me

Up till I saw this thread I thought there were only one FW for the UMO+. Yes, I had seen your site where you could build custom versions, including GT2. But I thought it was just a nice configurator around UM's FW.

I have tried to gather info on interesting mods for the UMO+. But trying to find something in their forum is almost impossible. Unless it's for the UM2(+).

jonnybischof

(testing this so he get's a notification.

He did post long a go https://ultimaker.com/en/community/5103 ... ion?page=1 it has one of the most extend list of mods for umo.

I actually gave up on collecting mods for the UMO a long time ago, and went straight over to making my own mods - and from there, my own printer. Seems to be an endless project with not many notable things to come out yet
But there is progress here and there. I'm just usually not happy enough with it to keep it and start over.

/edit:
viewtopic.php?f=7&t=54
This might be your go-to resource though. antiklesys made a good list of the mods he installed.

[Amedee]

I'll like to ask if could be posible to add an option to reverse the feeder from the ulticontroller

We'll have it in the builder as soon as I commit the changes, but I am very reluctant to make any motion related changes available from the controller: anything related to axes, feeder, direction, ... are compile time constants. To make them software selectable they need to be changed into variables...

• These are used everywhere, we need to be very careful not to introduce regression (can be managed though)
• More variables means bigger memory footprint (we should be OK there)
• But main reason is that using variables instead of compile time constant will slow down the controller, and these particular changes will affect the planner where we don't have a lot of flexibility. All these constant are there for a reason: getting enough performance out of this small micro-controller. With a 'modern' 32bits controller it might be an option, but with this 16Mhz ATmega1280 it is a bit risky

[Neotko]

No problem! I just forgot I can use a needle to take out the cables and reverse them, much easier.