E3D Titan Aero mount

Using a Titan Aero adds width to the X assembly and reduces X travel compared to the standard design; the amount depends on the motor and fan used. With a 20.7mm motor and 7mm fan I am limited to 295mm of travel in X with approx 1.5mm clearance either side. My frame extrusions and shafts are based on 300x300x300mm in the configuration spreadsheet. That gives an idea of how much X travel to add for anyone planning to use this extruder.

Some examples: 20.7mm motor, 10mm (stock) fan - add 3 + 5 = 8mm minimum (I would round that up to 10mm) 25mm motor, 10mm fan - add 3 + 4.3 + 5 = 12.3mm (or round up to 15mm)

E3D_TA_X_Carriage There are two additional bosses on the back side of the carriage for threaded inserts; these are used to mount the fan duct. If you don't need a part cooler, you don't need this modified X carriage.

E3D_TA_Mount

E3D_TA_Mount_IR I will be using the Mini Differential IR sensor (https://miscsolutions.wordpress.com/mini-height-sensor-board/) as a Z-probe. E3D_TA_Mount_IR includes the mounting holes for this.

Version 1.1 (E3D_TA_Mount_IR_1.1) adds cable support and removes the X max optical end stop.

E3D_TA_Fan_Duct_Mount Uses two more threaded inserts to mount the fan duct.

E3D_TA_Fan_Duct I printed this in three parts then superglued them together. For now I have omitted the top fan screw because it can contact the back of the frame.

Indicator mount

https://www.youtube.com/watch?v=DO9Y43uxi5g

The mount and clamp work with an 8mm diameter stem as found on the Banggood digital indicator shown in the pictures. Indicator_Mount_1.1 adds support for the back of the indicator to stop it moving when pressing the zero button. Might only fit this model of indicator.

Indicator_Mount_Y is for checking motion in the Y direction (against the front frame).

X_Indicator_Stop

The indicator mount can be rotated 90° (thanks to the square hole pattern SCOTT_3D uses for the dowel pins) in order to test and calibrate movement in the X direction. This end stop mounts (temporarily) on XY_Stepper_Mount; I used M3x12mm screws. As you lose the X end stops when removing the extruder mount, G92 X10 can be used once the X carriage is jogged into the start position, hopefully preventing crashes.

Step-down module mount

For mounting the e_goto 24 to 12V converters from SCOTT_3D's BOM (https://www.aliexpress.com/item/DC-DC-24V-18V-to-12V-3A-Step-Down-Module-MINI-Buck-Converter-Power-Supply-Circuit/32778770850.html?spm=2114.13010608.0.0.G2tjiK or https://www.aliexpress.com/item/DC-DC-Step-Down-Power-Supply-Buck-Converter-3A-Fixed-Output-14V-28V-to-12V/32636205942.html). 28mm hole spacing for M4 screws. (Inspired by https://www.thingiverse.com/thing:875468).

Spool_Holder_Clamp_Top/Bottom

I'm using this with a length of M8 threaded rod and these https://www.thingiverse.com/thing:2532403 spool holders.

Tension_O_Matic

The screws on the X carriage are good for fine-tuning belt tension, as well as squaring the X/Y axes, but this tool should help with overall tension.

Currently for 8mm X-shafts, 45mm X-shaft spacing and 11mm belt spacing. 10mm shaft version (untried, untested) here https://www.dropbox.com/s/xpcaoxigcuwk47n/Tension_O_Matic_10mm_1.1.zip?dl=0.

Changes

03/09/2017 - Added Indicator_Mount_1.1 10/09/2017 - Added X_Indicator_Stop_1.0 13/09/2017 - Added Spool_Holder_Clamp_Top/Bottom_1.0 27/09/2017 - Added Tension_O_Matic 28/09/2017 - Added Indicator_Mount_Y_1.0 04/10/2017 - Added E3D_TA_Mount_IR_1.1