Jump to content
foehnsturm

A different multi-extrusion approach - UM tool / printhead changer

Recommended Posts

Posted (edited) · A different multi-extrusion approach - UM tool / printhead changer

Basically you can use whatever feeder you want. There are only two requirements:

 

  • Both feeders should be identical
  • If it's not the UM2+ feeder, you will have to use your own (or Bondtech's) mounting brackets

 

Edited by Guest

Share this post


Link to post
Share on other sites
Posted · A different multi-extrusion approach - UM tool / printhead changer

Thanks for the Reply Fair play don't have any problems with that.. I'd even drill the case if that's what it takes.

Share this post


Link to post
Share on other sites
Posted · A different multi-extrusion approach - UM tool / printhead changer

Did I miss something, reading everybody talking about pieces. I just order the magnet till now and I search around the discussion for the listing of what I should buy (or perheaps it is not yet the time to do so), but find nothing?

Share this post


Link to post
Share on other sites
Posted · A different multi-extrusion approach - UM tool / printhead changer

You did not miss anything. It's just a second drive train (feeder, hotend, wiring, fans, aluminum print head parts, fans, fan shroud) and the magnets.

Share this post


Link to post
Share on other sites
Posted · A different multi-extrusion approach - UM tool / printhead changer

Hi all

I'm also very interested in this solution.

I have a UM2 with the upgrade to UM2+. So I guess with parts left from the old head I have at least the minimum to get it going.

I will definitely do this upgrade, beta or not as for the parts I need to print I really miss the ability of printing support like PVA.

Share this post


Link to post
Share on other sites
Posted · A different multi-extrusion approach - UM tool / printhead changer

So, das Upgrade Kit ist da. Die Magnete innerhalb von 1-2 Tagen.

IMG_7873.thumb.JPG.c180295ef8cb01c526781a0072a774c5.JPG

IMG_7873.thumb.JPG.c180295ef8cb01c526781a0072a774c5.JPG

Share this post


Link to post
Share on other sites
Posted (edited) · A different multi-extrusion approach - UM tool / printhead changer

also excited aboutthe upgrade. i will order my magnets today. hopefully my dual extrusion upgrade has all the parts.

the poll is currently at 23 (UMO) versus 53 (UM2).

would be interesting to know how many umo versus um2 have been sold and if the ratio reflects that.

@sandervg are you allowed to give us some numbers or at least the ratio?

@foehnsturm awesome effort. one question, any comment which noozle typ is the most recommended for an umo upgrade? or does that not matter much in terms of quality?

Edited by Guest
typo

Share this post


Link to post
Share on other sites
Posted · A different multi-extrusion approach - UM tool / printhead changer

So, das Upgrade Kit ist da. Die Magnete innerhalb von 1-2 Tagen.

IMG_7873.thumb.JPG.c180295ef8cb01c526781a0072a774c5.JPG

 

Looks good!

Share this post


Link to post
Share on other sites
Posted · A different multi-extrusion approach - UM tool / printhead changer

this is getting more and more exciting!

  • Like 1

Share this post


Link to post
Share on other sites
Posted (edited) · A different multi-extrusion approach - UM tool / printhead changer

Hi everybody,

I've been lurking the UM community and forum for a while now, but just have to respond to this development. I love it, great job! Count me in for an update kit and simply name your price.

Long story short: I run an UM2+ (upgraded UM2), I desperately need the soluable PVA support for my scale models and maquettes. I'm sick of chopping perfectly fine models up for reasonable print results and later stick them together again (and postprocess it all, often 'not helping' on the quality side). It has cost me days and days of work. Weeks if not months.

No wonder I'm super excited about this solution.

I have been looking around but couldn't find an answer yet. Maybe I'm just being stupid here, but I was wondering how possible interferences of the nozzle are accounted for, as the bed doesn't seem to move after swapping heads. When the (e.g. PLA) product is completely enclosed by support material, and this support layer is printed first (seems logical to me), it could be possible that the nozzle needs to pass the higher support wall, right? So this could mean, with bigger layer thickness, that the nozzle touches the support. Or am I missing something here? I'm sure you have figured something out, I just would like to understand this.

On the gcode side; I'm sure there will be a custom plugin for this?

Last but not least; are there any test yet with this system while using PLA + PVA?

Keep up the great work!

Edited by Guest

Share this post


Link to post
Share on other sites
Posted (edited) · A different multi-extrusion approach - UM tool / printhead changer

A good example, besides the ones conny_g mentioned, for a PLA / PVA print with the tool changer is this one:

[print=5463][/print]

There is actually a z offset between both nozzles, which is one of the key ideas of this approach. It's handled by the firmware. You don't need a plugin as there will be config files for Cura 2.3 to set up this as a special machine.

Edited by Guest
  • Like 1

Share this post


Link to post
Share on other sites
Posted · A different multi-extrusion approach - UM tool / printhead changer

There is actually a z offset between both nozzles, which is one of the key ideas of this approach. It's handled by the firmware. You don't need a plugin as there will be config files for Cura 2.3 to set up this as a special machine.

 

Good point actually: Can I run the dual header approach with Simplify3D slicer as well? That's my favorite at the moment.

  • Like 1

Share this post


Link to post
Share on other sites
Posted · A different multi-extrusion approach - UM tool / printhead changer

S3D should be supported as well. It actually always was but with adapting to new Cura the job supporting both becomes a little more tricky.

Share this post


Link to post
Share on other sites
Posted · A different multi-extrusion approach - UM tool / printhead changer

The magnets are here! The Scaffold and another PVA filament will get delivered tomorrow.

I am ready to go, should you need another beta tester :-)

fullsizeoutput_d67.thumb.jpeg.852644a57a3059b371f859797ff81c30.jpeg

fullsizeoutput_d67.thumb.jpeg.852644a57a3059b371f859797ff81c30.jpeg

Share this post


Link to post
Share on other sites
Posted · A different multi-extrusion approach - UM tool / printhead changer

I've received mine too, I don't know what I should do now...DO I have to buy a ultimaker upgrade kit?

Share this post


Link to post
Share on other sites
Posted · A different multi-extrusion approach - UM tool / printhead changer

I've received mine too, I don't know what I should do now...DO I have to buy a ultimaker upgrade kit?

 

You need a second feeder, bowden, hotend with cables. How you do that is up to you. The feeders have to work the same (geared/ not geared, gear ratio etc) and I think it's much easier if your hotends are the same. Otherwise your printing parameters differ between hotends even for the same material, that makes adjusting your prints more complex.

Also buying that stuff in separate parts from eventually different sources is quite some work and has the danger that you miss parts when working on the mod. Or they don't work well together because that combination is untested.

For all these reasons I chose to buy the 2+ upgrade kit. It's tested, it's the same what I have and has all I need.

So if you calculate your time and if you have "more money than time" then buy that kit.

  • Like 1

Share this post


Link to post
Share on other sites
Posted (edited) · A different multi-extrusion approach - UM tool / printhead changer

I'm following here.  Probably won't make it into the test group (answered the questionnaire though), but intend to upgrade my UMO to dual extrude with the collective knowledge that will be gained.  If possible, I'd like to contribute.  

I will be needing 2 identical print nozzles.  I am currently running a custom hot end, but also have 2 unused 3mm non-cartridge UBIS hot ends on hand.  I could either duplicate my homemade nozzle, or use the 2 UBIS hotends.  Either way I have to customize the tool change hardware.  The UBIS parts would be a more elegant design.  Also their capacity to heat quickly would be a benefit to dual extrusion.

I did a search of the old UBIS discussions, and don't find any long term testimonials there on the usage.  For the last year or so, I have been printing mostly with ABS, and I want to be able to continue this with the requirement to also print PLA+PHA and others in the future.  Is there any experience with UBIS ends with ABS, PLA, and of course PHA?

I understand that replacement UBIS 3mm parts are not available and am keeping this part of my consideration.  Would my concerns be better addressed with a Olsson, E3D, Merlin or other?

My existing one off hot end is working well in the above scenarios, so I am equally prone to go that way...

Thanks as usual.

Matt

Edited by Guest

Share this post


Link to post
Share on other sites
Posted · A different multi-extrusion approach - UM tool / printhead changer

I've ordered an Ultimaker extrusion upgrade kit #9510 as suggested. It is not so expensive : 477€.

The fact is that I found another reseller who propose so much spare parts for ultimaker but I could not decided what is needed. http://www.makershop.fr/175-ultimaker

Share this post


Link to post
Share on other sites
Posted · A different multi-extrusion approach - UM tool / printhead changer

for the umo, (probebly the

um2 as well), do they share the same fan or does each head need to have it's own?

Share this post


Link to post
Share on other sites
Posted (edited) · A different multi-extrusion approach - UM tool / printhead changer

Each head uses its own set of fans.

 

Umm interesting idea... (thinking out loud) I don't think that it should be too hard to redesign the hotend fans to make only one set of fans hit the print area, since the stock fan isn't blowing symmetrically anyway right? Push it forward a cm and a few and you can cool the print area of both hotends?

Edit: Ofc the 5v hotend fan can't be avoided without a full new hotend design. But, it should be possible to just keep that small fan, also with just 2 fans it should weight less to keep the quality as high as possible?

Edited by Guest

Share this post


Link to post
Share on other sites
Posted · A different multi-extrusion approach - UM tool / printhead changer

sounds good,

difference for UMO and UM2 because of the middle fan indeed, and the whole printhead including the fans are in the upgrade, but not for the UMO, that is one fan on the left. This one could be permanent on the central head and not on the parked ones in the corner.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Our picks

    • Ultimaker Cura | a new interface
      We're not only trying to always make Ultimaker Cura better with the usual new features and improvements we build, but we're also trying to make it more pleasant to operate. The interface was the focus for the upcoming release, from which we would already like to present you the first glance. 
        • Like
      • 182 replies
    • "Back To The Future" using Generative Design & Investment Casting
      Designing for light-weight parts is becoming more important, and I’m a firm believer in the need to produce lighter weight, less over-engineered parts for the future. This is for sustainability reasons because we need to be using less raw materials and, in things like transportation, it impacts the energy usage of the product during it’s service life.
        • Like
      • 12 replies
×
×
  • Create New...

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!