BTT CEB Voron Exhaust Cover v3

This is my 3rd remix of the BTT CEB holder. This is a significant change for modularity and compatibility with the TPU umbilical system. My purpose in remixing the model was to better separate the umbilicals as the original version with piano wire failed spectacularly. This version no longer requires ECAS and is significantly easier to remove each toolhead with the TPU umbilical plug.

Credits to @viesturz for the original TPU umbilical design and work by @draftshift and @N3MI-DG for instructions and backplates which I used to make this model. I still haven't strengthened the frame like @Minihaugern_152452. I also still haven't made a cover for the BTT CEB wires.

Fusion 360, step and 3mf files provided.

Revisions History

1. 5x lines with PC4-M10 fittings; 4mm cable passthrough

2. 5x lines with ECAS fittings; 6.3mm cable passthrough; 2.1mm piano wire holder (15-17mm deep); also added 2020 extrusion locating pins on the base module as quality of life improvement; preventing T-nuts slipping under the top component.

3. 5x lines with TPU umbilical mounts and re-routed 4mm cable passthrough - current version

Design Intention

• Compact/Minimal front-visible cable

• No wire duct - Canbus cable routed through the 2020 extrusion to keep the back panel free.

• Voron 2.4 aesthetic - with inspiration from Friction's Voron Exhaust Cover (https://mods.vorondesign.com/details/sChDLllFG34KYroxSym6MQ)

• Multiple Bowdens slightly offset for a toolchanger

Installation Example

My current install is a Voron 2.4 Tapchanger with 4 dragon burner toolheads, cartographer probe connected on T0 with EBB36 boards and a liftbar.

Print settings

[Voron PIF]

• Material - ABS or ASA

• Infill Type - Grid, Gyroid, Honeycomb, Triangle or Cubic

• Infill percentage - 40%

• Layer Height - 0.2mm

• Wall count - 4

• Extrusion Width - 0.4mm

• Top/Bottom layers - 5

BOM

• 3x M3 4mm Heatset

• 3x M3 16mm SHCS

• 4x M5 8mm BHCS

• 4x M5 t-nuts

Installation and Assembly

1. Dry fit the PCB before assembly and remove build plate print supports on the top piece.

2. Insert the 3 heatsinks in the pcb top piece (same as version 1 - see photo)

3. Mount the top piece to the 2020 extrusion with 2x M5 8mm BHCS and M5 t-nuts. Take care to locate it with the hole of the printer's back panel. Don't forget to route the canbus power cable.

4. Slot in the BTT CEB into the top and secure with 3x M3 16mm SHCS

5. Snap fit the middle piece to cover over the BTT CEB pcb

6. Mount the base piece with 2x M5 8mm BHCS to the 2020 extrusion using 2x M5 t-nuts

7. Insert your Bowden tube using the TPU umbilical plug