Bambu AMS External Spool Y Splitter using A1 Filament Hub by jayburd

jayburd

3D Printer>3D Printer Accessories

Print Profile(5)

All

P1P

P1S

X1 Carbon

X1E

A1 mini

Revised, Angled, 0.2mm layer, 2 walls, 15% infill

Designer

29 min

1 plate

4.9(46)

Straight V2, 0.2mm layer, 2 walls, 15% infill

Designer

29 min

1 plate

4.9(15)

0.2mm layer, 2 walls, 15% infill

Designer

28 min

1 plate

5.0(6)

0.1mm layer height etc.

48 min

1 plate

5.0(2)

Click to see more

Boost

199

409

105

895

322

Released

Description

I have tried various splitter designs and none worked as reliably as I would have liked. This design utilizes the A1 AMS Lite Filament Hub ($6) sold on Bambu store as the splitter for AMS and external spool. As such, you end up with 4 usable inputs.

The model is the splitter holder. It can be attached to the printer body using M3x6mm or M3x8mm screw. The A1 filament hub should sit snugly in the holder but with some play. The single tube side of the hub plugs into the PTFE connector as if it is a PTFE tube, it is a little tight so push it in as far as you can.

In my testing, this has performed flawlessly. It would not be surprising as this design uses the OEM part that's designed specifically for the same purpose of multiplexing multiple filament input into one.

Update: New angled holder added based on feedback from @BenjDavison90. Listed as second print profile

Update: revised the angled holder based on feedback from @BenjDavison90. Thanks again Ben

Update Oct 26: added new print profile Straight V2, this version has two screw holes for mounting to the upper right corner of the rear panel of P1P, P1S, X1C

To purchase the A1 AMS Lite Filament Hub (shown in the second picture)

US: https://us.store.bambulab.com/products/ams-lite-filament-hub

EU: https://eu.store.bambulab.com/products/ams-lite-filament-hub?skr=yes

UK: https://uk.store.bambulab.com/products/ams-lite-filament-hub?skr=yes

y-splitter

ams

splitter

Comment & Rating (105)

@BenjDavidson90

This is a great idea ! I had some problems with other Y splitter designs, filament will get a little stuck because of printing layers and it triggers the AMS buffer. With this A1 Mini AMS Filament Hub, no problem at all, it was designed for this ! However, if I put the A1 Mini AMS Hub into your part, it sometimes stucks because of the turn that the PTFE tube have to make... BUT if I put the A1 Mini AMS Hub below your part, this makes the PTFE tube have a gentle turn and the filaments does not trigger the AMS buffer ! To conclude, great idea, part that does not work as intended for me but useful nonetheless 😄

The designer has replied

@jayburd

I don't have the issue you are describing but I'll add to my list an offset mount that would angle it like the way you have it in the picture. Thanks

@jayburd

I added a new angled holder to orient the A1 filament hub in the direction you have. Also added a little tab at the end to prevent the hub from sliding out. If you are interested in trying please let me know if this version works better for you.

@BenjDavidson90

Replying to @jayburd :

Thank you for taking my comment on board, I wasn't asking for much :) The angle is good! But I think it needs to go more to the right. Also, because of the tab, it's no longer possible to print it vertically, which makes it much less solid... I think that cutting the flush tab would allow it to be printed vertically again.

@Smithjw13007

A big shout out and thank you to Jaybird for realizing you could use the AMS Lite Filament Hub for the much needed splitter. I think I tried all the different splitter prints and spent hours cleaning and trying to get each to work reliably. The Bambu Lab unit is smaller and has worked smoothly since I installed. Thank you Jaybird!

The designer has replied

@jayburd

I had the same experience, had trouble even with the best design Smoothy. Not a single issue since switching to the AMS Lite filament hub.

@aoliva62

Printed in Bambu Basic PETG - perfect fitment

@hoffer.christia

Print Profile

0.2mm layer, 2 walls, 15% infill

passt perfekt ! vielen Dank

@Mymaxdom

Print Profile

Revised, Angled, 0.2mm layer, 2 walls, 15% infill

Perfekt und so hilfreich vielen Dank

@mondragu

Works very good. Print with PETG in X1c with generic default profile. Thank you

@MikeNorris

Couldn't you just use the one designed for this by Bambu Lab which is slightly cheaper as well? For example in the UK https://uk.store.bambulab.com/collections/accessories-for-p1-series/products/bambu-4-in-1-ptfe-adapter Or am I missing something?

@mKotek

the one meant for X1 is all the time out of stock and this one is readily available, at least in EU store. So the price difference does not matter, if this does the job just as well.

@MarkTurley

I have ordered an AMS, but have received the mini hub already. Thanks for this design, and I am getting ready to put it all together on the printer. The output of the hub is a little bigger than the PTFE tube on my P1P (now upgraded to P1S), so the existing tube coupler I have which holds the tube fine will not fit on the output of the mini hub. Is the coupler shown in the photos between the mini hub and the printer PTFE tube a special one? Does it come with the AMS?

The designer has replied

@jayburd

It is the regular PTFE connector that Bambu ships with the printer. If you force the hub connector into the PTFE connector it will stay put. I mentioned it in the description.

@MarkTurley

Replying to @jayburd :

Great, thanks. I missed the note about it fitting very tight, but see it now. I will sand it down a bit for an easier fit.