[Ultimaker 2+ Extended XY Calibration]

Yes. I have metta tagged photos from the evening of Sun, Dec 18, 2016 when I received it. Attached is from about 20 mins ago and proves that I do have an UM2+ Extended.

 

I also have purchased an additional hot end during the + upgrade period (`~$400) and have had some success running 2 materials with Tinker-Firmware.

 

I do remember running the XY print as part of the unboxing. I can share more photos if needed to prove my story. 

[Ultimaker 2+ Extended XY Calibration]

Hello,

 

I remember printing an XY calibration print when I first got my machine. I would like to do this again after all this time and having just done some serious maintenance. Would someone be able to link me to those instructions? I enjoy using this machine and would like to get it back to how it was when I first got it. Thanks in advance. 

 

Regards,

 

Matt Blair 

[Ultimaker Mark2 - The Smart Dual-Extrusion Upgrade]

Sooo,

I just finished my first successful print! Even if there is still room for improvement in my settings, now my kids too have a cool traffic cone to play with (scaled down by 50%) :

I’m deeply thankful to the incredible people that made this possible. My four years old printer is born again, once again (after the olsson block, a new feeder, and some other mods of my own). I’m still surprised and delighted by the power and the good of open source hardware.

Now, to come down to some more mundane considerations, here are the caveats I encountered and how they were solved, in the hope that this can be useful to others. I stand to be corrected if any of the information below is not accurate.

1. got a temperature error 01 as soon as the printer started. There was a short on the mark 2 expansion board, therefore the firmware was reading an extremely low value for the #2 temp sensor. => check the expansion board visually and if necessary with a multimeter, for shorts.

2. was not sure which one of the firmware binaries from github I should chose. I used what I thought to be the most conservative choice initially (Mark2-dual-17.02.2.hex), but the fans on the printhead #2 were not working at all. This firmware does not work with the expansion board. With the thinkergnome flavor of the firmware it worked perfecly. This was confusing at first: when something does not work, one never knows exactly why, and it took me a while – and some unmounting and inspections of the cables & hardware – to understand that the problem was the firmware.

3. I had occasional weird errors like « x/y limit switch error » while trying to perform manual homing. I guess this was caused by me switching between firmwares, performing factory resets and other calibrations. I calmed down, and this issue seems to be gone...

4. I had the same problem as  MarcoUbtz with the printhead crashing into the front left corner upon tool change, and the solution by foehnsturm (set layer start at X{100} Y{50} in travel menu ) worked for me as well.

5. I’m not the smartest guy on heart, but I did not realize immediately that the three options in the Cura plugin need to be activated (at least in 2.6.1).

6. The cable of the feeder stepper motor that came with my UM2+ extrusion upgrade kit was just too short to route it properly to the mainboard. I cut the wires and soldered some extra 20 cm from another similar cable inbetween. Perhaps it would be nice to include an extension cable for the stepper in the mark 2 kit. (as a side note: could soldering the stepper cable and/or adding an extension cable cause electromagnetic issues? just wondering)

The  instructions  on http://magnetic-tool-changer.com/ are outstanding for such a community project. I also found the cheatsheet posted by chiz on May 24th very useful. A link to it in the instructions pages would be very useful.

As a side note, I used colorfabb XT white for the printed parts. And cyanilacrylate glue for fixing the magnets.

Hello technolazy,

I also had to extend the second feeder motor cable. I am getting x/y limit errors as you mentioned in issue 3. The tricky thing is I don't get the error when using the firmware "Mark2-dual-ext-17.06.hex" but do when using "Tinker-Mark2-extended-expansion-board-17.06.hex". I took a video of homing the head with the different firmwares. it is here:

Are you able to run the firmware "Tinker-Mark2-extended-expansion-board-17.06.hex" successfully?

Thanks,

Matt