Daid

How does more retraction help?

Same reels, just a shorter holder that only holds a single spool.

While we have done some limited experiments (with success) on 1.75mm. The choice of doing 3mm for the UM2go was done on other factors. Not changing the hotend and filament diameter simply means less new parts, less engineering effort and less storage allocation for our logistics department.

What Nallath means, it will respond eventually. But it can take a very long time. From minutes till hours even.

sw control for the little noisy fan is ready, but it's the hardware that cannot do it. The next UM2 electronics board iteration does this, but that hasn't been released yet. Ceramics insulator does not work due to the fact that molten PLA glues itself to it. (Same problem as PEEK, and a bunch of other materials. And yes, whatever you think off for ceramics, we have tried it. Oh yes, that will be awesome.

So true. (Mistakes where made with an UMO+ shipment, where the part shipping list did not match the actual BOM, explaining the recent large amount of complains on this area. No need to deny that screw-up from our side)

Just a double check, did you check the tension on the short belts attached to the motors? Does this problem show in the layer preview of Cura?

Yes, that's pretty much the main use we see for dual extrusion request right now. So we need a proper soluble material with that as well, and improved software support.

Well, mostly what we care about Ultimaker or not, so we can adjust our answers on standard Ultimaker problems or not. Two motors on one axis, that's interesting, how large is this printer that you are working on? As that sounds like something you would do on something really big. The fact that you are talking about F9000 and F5000 means you're already talking at a whole different level then most people here. And these are feedrates you are talking about, called speed in the GUI. And feedrates are in mm/min while speeds are in mm/sec in the GUI. Also, you might want to limit you max-feedrate in your firmware then, as it's usually best to have the firmware limits on what you hardware can handle.

Yes, i will reopen it.

Most likely yes. (Note, sometimes I miss updates on github due to internet woes)

The UMO+ ;-)

Closing and discussion are 2 different things. You think that a close from my side means that there is no discussion possible. That's not the case at all. Closing is an administrative task, it say, "I'm not merging it in this state"

It's voltage what defines this. And that's why you need to hook them up like that. The board supplies 24V. And the fans are 12V. So putting them in series will give both 12V

You'll have to run the 12V fans in series, then it will work great. (I have this as well on my home UMO) This image show batteries, but the same applies for fans: http://www.zbattery.com/core/media/media.nl?id=7097&c=288557&h=dfa0e19a839ae9849759 You want to connect them as the top image.

Could also be that you have something stuck under the build plate. Normally a screw at the end of the buildplate hits a switch a the back of the machine.

(In all honesty, I haven't seen the final packaging as well)

The image was from an closed pull request I had on another 3th party project. So, the owner of a pull request should be able to re-open it. Welcome to OpenSource development. Try linux kernel development, where your patches get rejected for even the slightest mistake on style or form. Now. Yes. I'm rude, aggressive, and plain annoying as well. I won't accept your patch just because "you put a lot of effort in it". The patch has to provide the proper added value, it has to fit in the vision I have for Cura, and it should not make the code even more fubar. pm_dude actually send me a PM, asked me what he could work on, and he had lots of suggestions himself. I commented on those suggestions which made it a lot easier for him to know where he could put his effort. And *poof* suddenly we'll have a "single layer view" button in the next version. Final: ALL HAIL THE MIGHTY CURA GOD! (Me) Maybe I should write a bible and get followers?

You're welcome. We know that the prefer way of doing things won't suit everyone, so there are options :-) (Also, if you change to RepRap flavor gcode, you can USB print. But stability of that is not guaranteed)

https://github.com/Ultimaker/Marlin/blob/Marlin_v1/Marlin/Marlin_main.cpp#L69

It's more substantial. Cardboard is nice for normal packing due to it being recyclable. But it won't survive a lot of transportation that the UM2go is intended for.

Full color? Don't expect that. Improved feeder? Yes. Full metal? Nope. Will always jam with PLA. However, the UM2 design isn't the most optimal. And I'm sure a design with teflon that does not wear out can be made. PEEK is the best suggestion ever, as it melts around 300, and deforms even sooner, and if we are designing a new hotend, we might want to account for hotter materials as well. Improving the bed clips is something we are working on, (even for the current gen of machines) (Also, Chrii, you can print USB with the UM2. It's just not officially supported due to potential problems. It works, and it will remain working. But it's not a feature that we want to burden our support department with)

http://github.com/Ultimaker/Ultimaker2 Contains specifications of all the parts. (And if you are the person who is in contact with Chris McAdam of support. Then please listen to her, as when your prints are tilted/shifted then that's a pulley issue, not a motor issue. Motors almost never break. If you are not that person, then ignore this message)

"Travel speed" is the setting you are looking for. (From his avartar I assume he has an Prusa I3)

The uninstall others is broken. Sadly I didn't notice that during release, it acts wrong and can remove the latest installed version, or not remove the right files.