Mini Stealth - A Scaled Down Stealthburner
This is the Version 2 release of the Mini Stealth toolhead. It is about 5/8 the size of the official Stealthburner and weighs considerably less. It uses a pair of 4010 blowers for part cooling and a 3010 fan for the hotend. The blowers use glued in air guides to increase airflow by about 20% compared to the Mini Stealth v1. This toolhead was entirely designed in Blender and I only have mesh files available.
The new design mounts the extruder and hotend to a core piece and mounts the blowers, hotend fan and LEDs into the shroud that slides onto the core. This makes assembly and maintenance much easier and the extruder can be fully removed while the core remains installed on the printer. There are four main extruder groups supported by the Mini Stealth.
| Orbiter 1.5 | Orbiter 2.0 | Sherpa Mini | LGX Lite |
|---|---|---|---|
| + filament sensor | Sherpa Micro ¹ | VzHextrudort | |
| Galileo SA | ProtoXtruder | Hummingbird |
¹ The Sherpa Micro has a different mounting hole pattern and has its own set of core pieces
There are currently 21 different hotends supported by this toolhead. The cores for the top three in the chart are shared by the others in each group. The bottom nine hotends each have their own cores.
| Slice Mosquito | Phaetus Rapido | Phaetus Dragon ST/HF |
|---|---|---|
| Mellow NF Crazy Volcano | Phaetus Rapido UHF | DropEffect neXtG |
| Nitram VolcoMosq | Phaetus Dragon UHF | Triangle Labs TZ V6 |
| Triangle Labs T-Vocano Dragon | ||
| Triangle Labs CHCB-V V6DM | ||
| DropEffect neXtG UHF | ||
| Phaetus Dragonfly BMO | Revo Voron | Bambu Lab X1 |
| Phaetus Dragonfly BMS7 | Triangle Labs Dragon ACE | Creality Spider Pro |
| Phaetus Dragonfly BMS6 | Triangle Labs TCHC TD6S | Dropeffect XG |
Here is an example of how the core and shroud are assembled. There are pockets for 3x6mm magnets but I have found that they aren't really needed as the slot has a nice friction fit with the layer lines giving extra grip. Also, if the magnets aren't seated completly flush, they will prevent the shroud from seating in the correct location.
Looking closely you can see three M3 shim washers (DIN988) stacked under each of the M3x40 BHC screws securing the core to the DAB x-carriage. Some component combinations will require these shims, such as with the MGN9 mod on a V0.1/2 in order to avoid crushing the linear carriage when installing. It is best practice to do a dry-run and measure clearances before final installation.
The .stl files in the Common_Parts folder should be compatible across the entire range of Mini Stealth versions. This includes all of the x-carriage options (DAB as well) and supplemental parts such as LED mounts and diffuser.
There are 74 different shrouds grouped by extruder type. Each of the 74 shrouds comes in four flavors. The basic shroud, a ZeroClick version and left or right probe-mount versions. The last two use M2.5x6 flathead screws to fit brackets that hold six different probes.
I still need to work up new assembly instructions for this v2 toolhead. For supporting these designs, I am most active over on TeamFDM.com and will be happy to answer questions there. The Mini Stealth files available on TeamFDM are of the version 1 release, while the current v2 files are all here.
I started working on a configurator for this toolhead but I still have a lot to learn about JavaScript. If anyone would like to help with this, please drop me a message on TeamFDM.
If you would like to support the development of these mods I would be very grateful.