Upgraded V2 of my original tidy for the RHS - right and side (with rounded edges) plus an all new LHS - left hand side piece. The parts are basically channels to guide the PTFE tube entry to the AMS buffer (filament injector), reducing friction. Also to guide the cable away from the poop chute exit. The new LHS piece also ensures a perfectly angled exit from the buffer, reducing friction and tidying the cable.

Why use my parts when so many others exist?

1. They work - I have had no filament pullback errors from the AMS since installing after more than 2000 filament changes.
2. You don't have to disconnect any tubes from the AMS buffer to fit the parts, they just clip straight in.
3. Minimal fuss fast solution, print in DRAFT at.24mm layer height. No Supports or Brim needed.

(It is a also good idea to get rid of that terrible quality Bambu supplied pneumatic connector where the PTFE exits the AMS, and replace with a good Y-splitter. IMHO the best one out there is on Printables: https://www.printables.com/model/406756-wye-another-y-splitter. Avoid the many models that introduce more yet more pneumatic fittings!)

Lets face it, the Bambu P1 and X1 series printers with AMS are amazing machines. My P1S is certainly the best 3d printer I have ever owned. Fantastically engineered and designed on the inside. On the outside, however, especially at the back, the plumbing seems to have been a last minute afterthought; a job given to the office undergrad student. Lots of people have designed pieces to help PTFE tubes and cables track nicely, but I couldn't find anything that worked for the “injector tube” entry and cable. They seemed to flop around aimlessly, putting friction in the PTFE tube, and the cable seemed to be perpetually dangling right across the ‘poop chute’ exit.

I designed these small pieces to route both the PTFE tubes and cables more accurately. The RHS is designed to be mounted without screws or magnets (though I have added three 8x3mm round inserts for the magnet addicted!). The part is held in place by the cable plug itself, which has a locking tab. The part also creates a very gentle dynamic tension between the cable port and the external spool holder. (If you have dismounted that, please use the aforementioned magnets ;-))

To fit RHS, simply:

1. Power off your printer and unplug the cable plug below the spool holder.
2. Press fit the cable into the lower channel (there is a chamfer at one end to facilitate a firm press fit) and fit the plug into the cutout shaped for it.
3. Press fit the 4mm PTFE tube into the upper channel It should pop in with a gentle click, then be loose enough in the channel for the tube to move freely. This is really important as tube moves back and forth with the action of the injector.
4. Plug the cable back into your printer. Power on.

To fit LHS, simply:

1. Remove the existing hex bolt and save for another project.
2. The new LHS part can be attached with 2 M3x10 hex bolts.
3. Press the PTFE tube and cable fully home through the chamfers.

Now your PTFE tubes now runs straight and true from the AMS Buffer, and the cables are neatly managed and bypass the poop chute exit. Simples!

Print in DRAFT at .24mm layer height, 15% infill, standard print settings (no supports, no raft, no brim). I used Bambu Basic Yellow PLA so you could see the parts more easily, but a darker colour might be more tasteful ;-)