E3D Hotend mount for SD3 with active cooling fan (stock carriages) (Page 1 of 2)

That looks pretty amazing. If you really want to get fancy with the top filament guide, you could do a version with a place to mount one of the microswitches that has a roller on the end of the lever for detecting filament out :-).

Great work!  I'm currently designing my own modified extruder for a standard (or jhead) hotend, and I like the approach you've taken for locking the hotend in place.

I believe that it should work just the same for the SD2, but I'm not completely sure.

That would look excellent!  Go for it!

Here are a few pictures of the final assembly.  I am a bit busy right now, but I will get around to posting this to thingiverse properly and printing the fan to go with it.  Thanks for all of the great feedback!

The felix design here was chopped up in the making of this model.  I will make sure to attribute the correct model and whatnot when I upload it to thingiverse.

The little 30mm fan is the one that comes with the E3D and has a vent in place to allow for it to cool the heat sink.  I kinda heavy-handedly added that part unforunately, and I'm looking at ways to incorporate it more elegantly.

I am also not sure about using the one fan to cool both because you do not always need active cooling on your printed parts, but you do need to keep the heat sink as cool as possible so that it won't melt the extruder mount.

I will continue to work on redesigning this so that it is a little more user-friendly and practical, but in the mean time this design should work just fine.

Edit:  This layout would probably work better, and looks a little more even.  I would have to work out the details on going back and redoing several design components.  (I wish TinkerCAD had a hierarchy-based work timeline like Solidworks does!)

ooohhhhh pretty!

Check Solidoodle's new extruder, more simple and easy to use,
I like it.

To "Solidoodle discussion"-"Solidoodle at CES"

I am a bit wary of the fan ou the front, as one issue I had with a front mounted hot end fan (on the original hot end) was that it kept knocking the door of the enclosure open when printing parts at the front of the printer.  Swapped to E3D (after snapping hot end trying to disassemble) and am still trying to get a hot end fan sorted. 

Very much liking this design so far.  I have one which uses a much smaller fan mounted under carriage / behind hot end, but havent mounted yet (you know how it is).

Just a quick announcement, but I have uploaded this design to thingiverse.  I finally had time to print the fan mount last night, and it looks like everything works quite well.  Please let me know if anyone has any questions/suggestions or if you happened to make it.  Thanks!

http://www.thingiverse.com/thing:252918

I forgot to mention that in the instructions, but due to the fact that the clearances are pretty tight (in terms of where the through holes can be and not interfere with each other), you will need to shorten the very long bolts that connect the parts to the carriages by using two nuts on each bolt.  I know that this is not optimal, but it was the best way to keep these screw heads from interfering with the installation of the hotend.

On the subject of fit: I had to go through several iterations of printing to get the fit just right, and I made it such that there are tolerances that allow for slight variations in printing calibrations (by making the holes slightly larger than they need to be).  Because of this, your printer needs to be calibrated for accurate parts in order to make sure that it fits correctly.  Also, no finishing techniques can be done (like acetone treatment), as they will affect the overall size of the fits.  I think that you acetone finished your print, which in my experience will make it lose features and changes the overall size a bit.  It's almost an exact fit, so any changes will make it not work unfortunately.

Sorry about that!  I'm glad that someone is making something that I designed, and I'll do what I can to help you get it to work.  You should be able to slap on some nuts onto the existing long bots to "trim" the length without having to buy a new pair.  That's what i did with mine.  Here's what I mean: (The two dark gray items are nuts that lock each other from moving and the bolt just sticks out harmlessly in the back where you can't see it)

Please let me know if you have any recommendations on how to improve it!  Thanks man.

The filament guide did not work too well for me (the sponge holder snapped), so I've put that idea on the shelf for now.  I do, though, have Rev. B of my design ready to go.  I will try to upload it tomorrow if anyone is looking to make it.

I'm hoping to migrate the fan shroud to the back on the next revision, but I will say that this fan shroud works better than any I've tried before.  I'll post some pictures of some things I make with it soon.  (Busy upgrading my heat bed)  Thanks!

Edit:  I've posted it to thingiverse.  Here you go! http://www.thingiverse.com/thing:271506