So, yesterday I began the task of upgrading Dual 1.0 to Titans with Hybrid. Primary goal really was to get back to printing as soon as possible with a single direct Titan, then add in the second bowden Titan at leisure. This is the set of steps I captured - roughly. As I speak - the Titan is printing, and the second extrusion system is dangling over the edge of the printer with the hot end cooling fan running. Upgrade Dual 1.0 to Dual Hybrid w/ Titans Printer remains operational 1. Print the following parts X Carriage Back Clamp (can re-use front one or print e3d extruder IR mount Dual Cooling Fan Mount (non-volcano) 2. Build Titan to e3d extruder 3. Build Titan to back of case Begin decommission 4. Remove filaments from hotends 4a. Remove side cooling fans and clean hot ends while hot (cool to between 130 and 170 to pull away in clumps) 4 m3 square nuts 5. Cut all cable ties to x-carriage assembly 6. Remove fans from hotends 8 phillips 7. Remove IR sensor 2 m3 square nuts 8. Power off - ensure temp of hotends below 40 9. Remove hotends from x-carriage 10. Remove x endstop switch 2 m2 screws 11. Remove all equipment from hot end. Set down. X-Carriage swap 12. Unscrew 4 m4 screws to release top section 4 m4 screws 13. Remove front clamp 2 m3 screws 14. Loosen tension 15 remove grubs 16. detach pulley 17. wangle lower x-carriage free 18. cannibalise old x-carriage 18a remove 4 grubs 4 m4 nuts build into hybrid carriage 18b remove tensioner assembly build into hybrid carriage 18c almost impossible to remove all 8 clamp nuts remove 4 easily grab 4 from spares build into hybrid 19. Attach x-carriage to bed and push bearings into place 20. attach front and back clamps if you printed in PLA - now you wish you hadn't. unpleasant cracking sounds during tightening. very light tightening!! note to self - reprint clamps in edge 21. swap IR sensor to new mount 22. replace x-axis idler "canon" for M3 12mm - set for roughly right position (can be tweaked later) 23. move all content for right extrusion away from the machine (rats - broke the cooling fan black connection - luckily only need one cooling fan now) 24. fit left extrusion items (which include the IR sensor connection) part cooling fan assembly not up to date for hybrid on wiki 25. tension x belt power on 26. check temp can be set for fitted extruder (in my case 0) 27. load RC6 Dual Hybrid MBL from Alex 28. reset and test auto home 29. tune esteps 30. load first print.