Creality printer mods

The Creality 3D printer is a clone of Deezmaker's excellent Bukito 3D printer (which I also own one of). While the Creality improves upon the Bukito by providing an LCD interface, it is mechanically inferior in several ways 1. The vertical tower in the Creality is held to a horizontal extrusion by a very small corner bracket. There's little to prevent the tower from twisting forward. The Z stepper motor helps to resist twisting backwards. The Bukito firmly secures the vertical tower in two perpendicular planes to the custom bottom plate. 2. The belt paths are not kept in the same plane as the motion of the X and Y carriages. 3. The X and Y idler supports in the Creality are not adequately stiff and introduce additional ringing, albeit negligible at low printing speeds. 4. The Creality's hot end uses a PTFE liner all the way to the hot nozzle. The PTFE will degrade over time and require replacement. Further, this limits the printing temps which can be used to below 240C. It further limits maximum printing speeds as only so much heat can be provided via the reduced melt chamber size. 5. The Creality's pinch gear doesn't have sufficient bite in hard PLA and slips occasionally. While not a mechanical defect, the Creality lacks a print cooling fan. As the Creality is clearly intended for printing PLA (and comes with a sample of PLA filament), lack of a print cooling fan is a significant omission. Particularly since you need one for small prints and the Creality is otherwise best suited to small prints. In this Thing, I provide some modifications which may be used to help address these issues. After you read the amount of modifications and parts changes I made, you may well ask yourself whether this was any less expensive than buying a Bukito kit. Just the electronics alone which I used cost about $240 US not including shipping ($206 for Duet 0.8.5 + Panel Due; another $35 for a larger power supply). I further used at least another $160 in parts