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MoonCactus

The Butterfly: lightweight and easy head mount for LM6UU crossbars (eg. Ultimaker)

by MoonCactus Oct 2, 2013
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Thank you for your design and also for the .scad file

you are wlecome, thanks for the comment :)

Why would you not flip it upside down so heads were higher... giving more build volume?

Good idea, but if you check the third picture, the E3D heatsink already touches the bearing cages. Now, sawing part of the heatsink off the E3D (version 5) would be acceptable as I consider it oversized anyway :)

Love it! Will use for my next printer :) An Ultimaker based own design :D Will publish soon, thanks!

can you make one for lm8uu linear bearing?

Sorry, too little time right now. But you can tweak the geometry in the openscad source code as I made it fully parametric. Making it bigger may provoke a few conflicts though (ie. push the vertical clamps further away?)

It wants <cheesy_hot_end.scad></cheesy_hot_end.scad>

Oh sorry, but no harm you can ignore this completely. It is just a "ghost" of an experimental hot end of mine that has no impact on this design!

How do you adjust both nozzles be equal height in dual config?

Well... I did not try so far but I really expect to try soon. Anyhow I would love to see it done and get some pics: do tell me as you'd be the first one!

Nonetheless, here is how I would try:

  • I think that there is enough vertical freeplay left with these clamps. Still I would improve it when I tackle the issue because tuning would not be very convenient (clamp one head, unscrew the other a bit and move it within its clamp by force, tighten it again -- if needed). Hence no real fine tuning so far.
  • also, I would probably try to join the two heads with a stainless steel thick wire, to hold them together better than only with the printed head clamps (and esp. as nylon is flexible). The wire would help tweaking the height & verticality precisely, but the setup would not look so great (lol, who cares if it works?!). Stainless steel is interesting also b/c it does not conduct heat well.

i have tried and the clamp of the e3d head is different from j.head one i have modified it in rino and now works

Oh nice to know, could you post & share the derivative? Also if you can tell me the data & dimensions I could re-incorporate this in the original design so it help others :)

really very nice! could you please add the step or iges file drawing ? i would like to add the support for j-head or e3d head, i do not want to clamp the push fit
i'm not used to openscad programming

thx

Sorry, I do not think Openscad knows how to export them to these formats (too bad, btw, but the way the object is built with CSG would make it quite hard I guess). So you may better try to import the STL files themselves.
Now, for the E3D, check my specific derivative: http://www.thingiverse.com/thing:159987http://www.thingiverse.com/thi...
I would be interested to know if the corresponding j-head camp is compatible with other hot ends, please let me know if you try!

E3D hot end smallest mount / J-head mount for the Ultimaker