This is a fan shroud I made for Klipperized bed slinger printers. This fan shroud was originally made so that I could keep a budget and reuse parts from my previous modifications. compared to other designs, I wanted higher airflow and a shorter filament path than other modified fan shroud extruder combos. To better accommodate bed slingers I have decided to build the tool head out rather than up in an attempt to save print volume. I also attempted to make the outer fan shroud hug the heatsink to stabilize it better during printing. Also, the independent ducts are removable to make it easier to remix this design.
Filament reconditions ASA, PC or Petg. (side note, it might be cool / helpful to print this model with transparent filament).
Changes
- Changed the back plate so that M3 inserts are not used to connect the hot end (not enough material). same stl (forgot to replace original).
Parts needed.
Highly recommended parts.
- BL touch + 2x 3M 5mm screws
- accelerometer + 4x 3M 5mm screws
- heat sinks
- zippiest
- super glue (yeah yeah I'll work on and eliminate this step)
If you need/want help I did start up a discord server for this project witch can be found hear.
https://discord.gg/kEfErd5VhY
Assembly instructions.
Step 0
This design was originally made for an Ender 3 and it requires you to move the x-axis limit to the outside of the motor cover assembly.
Also if you don't have another motor you want to use for the direct drive line around, please swap the stock extruder motor and the x-axis motor out for each other and change the run current for each motor.
- Attach the back plate to the linear rail using 4x M3 5mm.
- Put the belt through the back two slits on the back plate and the belt retainer using 2x M2 15mm screws.
- Screw in the hot end (do not use M3 inserts … changed) ether stock screws or 2x M3 20MM.
- Screw the fan shroud onto the back plate using a M3 5mm (or 10mm) screw and a M3 insert on the red part.
- Slide / Screw a M3 5mm through both the fan shroud and back plate using a nut or an M3 insert to secure it in place (I plan on changing the location of this in the future).
- Add a M3 5mm screw and a M3 insert to this hole to secure the fan shroud in place.
- Use zip ties to manage the cables.
- Install the heatsink fan 4x M3 5mm (use the same screws).
- Install 5015 fans on each side using 4x M3 20mm screws and 4x nuts through the holes in the supporting plastic.
- Slide the ducts into the fan and add 2x M3 20mm (one for each side) to keep them in place.
- Cut a length of Bowden tube 18mm in length and put it into the part shown then put the assembly into the pneumatic connecter hole of your extruder.
- Install the stepper motor and extruder kit using screws from the kit with the swapped stepper motor's connector either facing up or to the “back” of the printer.
- The bad step, use hot glue or whatever your choice weapon is to provide strain relief.
Optional steps
- Screw in the bl touch.
- Add an accelerometer to the side.
- Put a heat sink on the stepper motor.
Things I am working on changing.
- Adding threaded inserts for everything.
- Proper strain relief.
- Making it easier to reassemble and disassemble.
- Stabilizing and improving the position of the air ducts.
- Cable management.
- A custom exterior utilizing a smaller motor.
- Actually good instructions.
So why is it called a Vengeance fan shroud?
because after you make this you will want to seek revenge against me for “wasting your time” LOL.
Delta Protogen
