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Getting very excited after some successful 3dprinting testing on the new Ultimaker 2+ with filaflex flexible filament.

before I had a lot of issues with the old version of Ultimaker as the old material feeder couldn’t cut it delivering this elastic flexible material through the Bowden tube.

but the new geared material feeder of the + models seem to be able to push this guy through for some reason.

using 0.6 nozzle,

temp-230 deg

bed- 60deg

retraction on ( but doesn’t make much difference because you still get stringing due to the elasticity of the material)

madding machine oil to lubricate the Bowden tube.

and increasing the tension to about 3/4 tightness
image.gif image_0.gif

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The shoe is from Recreus called Pixel shoe

watch and wallet are by us available on youmagine

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Another pic of the shoe

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Material feeder tension setting

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Amazing work. Really like the wallet and the shoes equally good.

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On my Ultimaker Original + with UM2 head i’ve experienced close to 0 problems with printing flexible filament. I’ve only adjusted the tension a little bit of the extruder. The flexible filament i used is Innoflex by Innofill: 3D Printer Shop Online | Buy 3D Printer Plastic Filament

The only problem i had is the stringing you get from retracting.

Printing with a 0.4mm nozzle and 0.06mm layer height is not a problem at all for me.

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Yes I was able to print with filaflex on my old original… But lost that ability with the old UM2.

thats interesting that you have a um2 head on an original. Could you share a picture?

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I don’t have a picture right now, but you can see the printer in the banner that i put on my Hub.
https://www.3dhubs.com/maastricht/hubs/rob

Currently it’s also upgraded with an olsson block.

Some extra information:
The X and Y axis on the UMO and UM2 are switched. So that’s why the nozzle is on the right side of the head instead of the left.
Because of this switch the head will be rotated 90degrees, just turn the alluminium parts 90degrees back which allows the bowden tube to enter the right hole instead of the left. Not rotating the alluminium parts decreases the print area because the fans will hit the back of the bed casing.

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I also have an Ultimaker 2 printhead installed on an Ultimaker Original +. As they use the same electronics you just need to print a small part to be able to turn 90º the printhead as the axis are inverted. The part you need to print is available on YouMagine (the user that created it is called Meduza).

The main advantage doing this is the possibility to install an Olsson Block and also that the Ultimaker Original + has a geared feeder, which I find slightly more reliable than the Ultimaker 2 feeder.

I posted on my Instagram a picture (I think it’s the 4th picture):

https://www.instagram.com/flowalistik/

I’ve printed on the Ultimaker 2 with FlexPLA from Ultimaker. It works, but it’s way less flexible than Filaflex. However, it’s really nice to see that we can start using some filaments that were really difficult to use (bowden system looks nice, but it has it’s limitation)

Bonus: the Ultimaker 2+ upgrade kit can be installed on an Ultimaker Original +, and I think that’s an upgrade anyone would want to have.

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Thanks for the headsup on the printable part for the um2head!
I’ve found it on youmagine: https://www.youmagine.com/designs/um2-printhead-top-for-umo

It’s only for a single extruder, maybe i’m planning to get dual extrusion soon but modifying the model should not be a big problem. This already helps a lot!

Performing the 2+ upgrade on the UMO is in my opinion not worth the money since the extruder is not a problem at all. Buying the printhead on for example aliexpress and seperately buying an original olsson block is much cheaper.

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I run FilaFlex on my Um2 with an olsson block, .4 nozzle and the stock feeder with 1 exception, I use this curved feed wheel so the filament doesn’t “slip off” if you will. http://www.ebay.com/itm/171795806212?\_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT That is the only change I have made and it seems to work great! I am not sure how much of a difference it made but I did replace my stock feed tube with an E3D “PTFE” tube (it seems like a PTFE bearing plastic) but that seems to have much higher surface lubricity than the stock tube which was pretty old and worn out!

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Wow you guys have blown my head that you managed to upgrade the head of your UMO to a UM2… But it makes sense that it’s quite compatible.

obviously you have to upgrade the heater cartridge and temp sensor right?

what other electronic modification do we need to consider to change the head?

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This is what’s so great about an open-source system… :wink:

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So my printer is not the original+ but the one without the heater bed. Can I still upgrade the head?

it is a different electronic board.

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If you have an Ultimaker Original I don’t think the upgrade would be so easy, as it will be necessary to modify the firmware and probably the heated cartridge/temp sensor. In the Ultimaker Original +, which uses the same board, is just as easy as connect the new cables, assemble de printhead and that’s it.

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Can someone to make a 3d model of the new feeder so we can print it? I will be pleased to do it if someone borrow me one for a couple of hours.

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Not only the feeder housing but also the bolt and the motor have changed.

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Hmm it seems I was using an old version of filaflex. The filaflex I have been testing is maybe 2 years old.

Apparently they have an improved formula, I just got the new stock and it is quite different. Seems softer… So I am re-testing with the latest stock to see how it goes.

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I support this idea !

If someone wants to send me a feeder, I’d take time to “copy” it and share ready to print stl files.

(and of course I’d send the feeder back)