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Prusa i3 E3D Titan mount and fan duct

by ade2, published

Prusa i3 E3D Titan mount and fan duct by ade2 Sep 14, 2016
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Summary

This is an mount and fan duct for the E3D Titan extruder and its' included 5015 blower fan and a V6 hotend. This was made for the Prusa i3 Titan + V6 upgrade kit from E3D. Other hotends than V6 may be too long or short to properly align with the fan vent exhaust (haven't checked). It should fit all i3-based printer models with the regular i3 X-axis.

It is a remix of the left handed design by GarzaDB;

The carriage part has a few changes;

  • Removed the part sticking out on the top left
  • Removed the inductive sensor holder
  • Added a cable management loop on top
  • Made stepper motor holder thicker to add rigidness and durability

There is also a completely redesigned fan mount for the included blower fan. The fan is screwed down with two screws and the fan output nozzle fits inside a slot for easier mounting. The improvements and goals of this redesign compared to the original provided in GarzaDB's version are

  • Fan air is captured better
  • Fan output is all around the hotend nozzle area, below the block
  • Fan output is not limited by a small output hole
  • Sturdier mounting and more rigid
  • Prints without supports

The fan part is compatible with GarzaDB's carriage, so if you prefer that version with an inductive sensor holder, you can still use it with this fan mount (EDIT: I haven't tried this. Maybe it's not true, since the fan hood looks like it would obstruct the sensor).

Using the new E3D heater block sock is recommended. That's the blue thing around the heater block. It will insulate the heaterblock and nozzle from cooling air, and also insulate the printed fan vent from the heaterblock's heat. Also, it insulates your print from heat radiation coming from the heater block, allowing your print to cool better.

Print Settings


Notes:

I suggest printing the fan holder in ABS, I don't think PLA nor PETG will be able to handle the heat around the heater block good enough (but if the layer fan is always expected to be on, it could work I guess). Both parts print without supports.

Assembly & Parts required

Hardware - see picture!

Screws already in Prusa i3 Upgrade kit:
M3 x 25
M3 x 35

Extra screws needed:
M3 x 55
M3 x 20 and nut
M3 x 30 - this is optional, I don't use it. The titan's face plate keeps the parts in place, and I lower resistance turning the extruder gear without a screw here.

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some parts of the model seems to be too thin , can't print it using S3D . having holes on the model

I found where we can at least give it a shot...In the Advanced tab under "Thin Wall Behavior" you have to set "External Thin Wall Type" to "Allow single extrusion walls. The model has a couple of 1mm thin walls for some reason as part of the air duct. If we had the files it would be easy to correct. I'm going to try it with this setting and I'll post the result.

The thin walls failed in Slic3r as well....you also have to adjust for the very thin wall as this isn't supported normally.

I'm having the same issue..... hard to believe that Slic3r will fair better but I'll give it a shot.

Someone else said that too, try using Slic3r, that worked for me.

Hi,
would it be possible to get a file that can be edited in Fusion 360?
I would love to add a mount for a cable chain...

Not sure! This is made in OpenSCAD, which is a programmatic cad editor, meaning that all models are expressed as text. Best choice would probably be to import the STL file you have already and edit it. Or if you give me a good description of what it needs to be like, I might be able to add it for you.

Can you upload the OpenSCAD files. I'd like to add a 18mm inductive sensor mount to it

Sure, let me have a look through my files, it's kind a mess since the carriage part is remixed from a STL. Or would you rather that I attempt to add it quickly? Where would you like it?

I'm having trouble printing the fan mount. During the first layers of the print, the walls seem too thin and I'm getting gaps. Did you have any issues like this?

I didn't, what slicer did you use? I used slic3r.

What is the manufacturer and model # of fan?

It's a 5015 blower fan, you can find them from very many manufacturers. Like this one: http://www.robotdigg.com/product/194/5015+12V+Blower+Fan

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