AMS 'Lambda' Stacker

AMS 'Lambda' Stacker

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Print Profile(2)

All
X1 Carbon
P1S
P1P
X1
X1E
A1

V4 - With rear cross-bracing. 0.2mm layer
V4 - With rear cross-bracing. 0.2mm layer
Designer
16.2 h
1 plate
4.8(6)

V2 - Original - 0.2mm layer
V2 - Original - 0.2mm layer
Designer
14.3 h
1 plate
5.0(1)

Open in Bambu Studio
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Released

Description

A solution for stacking two AMS units one on top of the other, and permitting filament changes without moving AMS units or dismantling.

 

 

UPDATE: New V4 design available with cross-bracing to significantly improve lateral stability. Assembly guide also provided now.

 

Dimensions of the stack: Excluding filament / cable entry the two units occupy around 410mm / 16" depth, and 550mm / 21 3/4" high.

Whilst the top AMS may look a little precarious, it appears strong and is well balanced in usage. The stand is positioned directly below the AMS's centre of gravity, and the 90mm / 3.5" top section - with alignment slot - does make it surprisingly stable. Side-to-side stability looks to be okay, but a thicker (than 9mm) section may be necessary for a completely freestanding setup. I'd welcome other users' experiences and feedback.

Warnings:
* Please use the stand at your own risk. I'm responsible only for breaking my own AMS units if the stand fails!
* If the lower AMS has to be removed then the top AMS must be taken off first, as the lower AMS provides stability.

UPDATE: * This works for the latest V3 AMS units. Older AMS versions are not currently supported.

 

To try to maximise strength, I printed the top arms horizontally with a large flat support section. I've also used PETG-CF. The lower triangle base should not be subject to the same stresses as the top arms, and so was printed in a more practical orientation.

 

(When preparing the print in latest Bambu Studio (v1.10.1.150) the supports did not slice. I don't know whether this is a known bug. I had to go into 'Support' tab and change the support to 'Type: Tree', slice it - where supports were then shown - and then went back and changed back to 'Type: normal(auto)', and sliced it again. This workaround then correctly slices, with supports shown.)

 


Documentation (1)

Assembly Guide (1)
AMS Lambda Stacker - V4 Assembly v1.0.pdf

Comment & Rating (44)

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Print Profile
V4 - With rear cross-bracing. 0.2mm layer
I love this design. less than a day to print and it was surprisingly sturdy. I was sad it didn’t fit a few of my AMSs that were the “early versions”, but I was still able to use a couple of these. I made one out of ABS and another out of PETG.
The designer has replied
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Thanks for your comments. Great to hear! I’m only familiar with the current AMS. I’ll see whether I can find any information on how the earlier model(s) vary from the current one.
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Boosted
apparently they have more slots on the bottom so the stands made for the newer ones won’t fit. there may be more differences, but this is the only 1 that I think is the issue.
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Replying to @tdub55 :
I'd need to get some dimensions for the older versions. It may be that some additional, strategically placed, new slots may allow the older models to be supported. If you'd be kind enough to supply some measurements I be happy to work up a simple test profile. (Needless to say?? I only have access to the latest version AMS.)
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Boosted
Seems to be a good design that uses nowhere near as much filament as the other designs. I printed it in PETG-CF and it seems plenty strong. The only slight issues I had were removing the supports and digging out the slot for the tab.
(Edited)
The designer has replied
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Thanks. Yes the support material is a bit fiddly to remove. I tore the thick part off then eased-off the remaining strip of CF + support material from each side. The edge was surprisingly clean. The biscuit slot had no support material inside it for my print, so may need to experiment with support settings and check the slicing. I positioned the slot face down to keep the front edge unscarred from support material. The biscuit slot is for lateral support and to allow the pieces to snap together and stay together.
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Boosted
Replying to @steve4690 :
Mine needed a bit of filing, but otherwise was ok. I superglued the bits together. Once my next print has finished I'm going to look at mounting it onto a plywood base so it will be easy to remove the lower AMS. I'll just create some right angle brackets to superglue to the existing base. If you ever redo this design, maybe look to add some screwholes in the base for this?
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Replying to @Farpoint :
Thanks again for your feedback. Good idea, I’ll pop some screw holes in / consider mounting options.
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Print Profile
V4 - With rear cross-bracing. 0.2mm layer
I printed in PLA, stood the top legs up and it printed about 45 minutes faster, it didnt need support and used about 50g less filament.
The designer has replied
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The print orientation (with required support) was for print strength where the stresses will be greatest. I don’t like the wasted material and support removal but I, personally, like the added strength. It is good to hear that the top supports will print okay in the more natural position. I could perhaps consider making the top AMS slot detatchable, so that it can be printed separately and then attached. But the assembly is already more complicated than my original aim. Thanks for taking the time to pass on your feedback. Looks great!
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Print Profile
V4 - With rear cross-bracing. 0.2mm layer
Personally. the top section that holds printer, if it could be longer with a slot it would be a bit more stable.
The designer has replied
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Thanks for your comment. The top section has a strategically placed slot already. Drop a photo in the chat please so I can see what’s going on. I have established that the stacker only supports the latest AMS. Thanks
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Replying to @steve4690 :
just noticed that if you accidently push down on front the ams easily tilts forward. I can be clumsy at times. I haven't learned to modify yet but if the top rail was extended and snother notch it wouldn't tilt forward as easily.
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Replying to @user_1449147662 :
When loaded with filaments the centre of gravity is directly over the stand. I find the stand stable, but mine is usually fully loaded most of the time. I have to apply a fair amount of force to tip the unit when full. I’m looking at tweaking the design to fit the older AMS units - when I can get some measurements - I’ll look at whether the top can be extended though.
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How on earth is this supposed to fit on the AMS? I'm too dumb :-)
The designer has replied
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The edges of each AMS nest within their corresponding slots on the stand
(Edited)
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Replying to @steve4690 :
Hmm?
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Replying to @jens.wiedemann :
Furthermore, I purchased an AMS a month ago, and it fit perfectly—two variations then. I simply cut away the supports on the older AMS. steve4690 couldn't have known that.
(Edited)
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A bit too rickety for my liking. But you really thought outside the box on this and gave me ideas on how to model my own, so here's a boost!
The designer has replied
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Interested in knowing whether you printed it. Keeping it simple, I was trying to avoid cross-bracing and widening the base. Best of luck with your design. Glad to have inspired you! :-)
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Replying to @steve4690 :
Ah yes, I did print it as I haven't had time to model my own. I only had Polymaker metallic PLA available, but its holding up just fine. Digging the supports out of the notch hole was irritating, as others have mentioned. The cross bracing you posted may solve my needs for horizontal sway. Thank you for that update. You're doing great.
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Thanks for that. FYI, none of the versions I printed had support material in the ‘biscuit’ slot. I wonder if anyone else sees that.
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GREAT AMS SOLUTION 5 STARS
The designer has replied
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Thanks!
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Print Profile
V4 - With rear cross-bracing. 0.2mm layer
It is printing, it seems correct
The designer has replied
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Thanks
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PLEASE change supports to tree. had to toss and redo in studio…
The designer has replied
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Argh, sorry you had a failed print. My initial print, with normal support, also failed, but that was due to the base layer being too thin and peeling off when the support was removed. I changed the profile to to have three layers and that was able to be cleanly removed - albeit with a little difficulty. I was looking to minimise scarring by using normal, over tree.
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Overall, I like the design. It fits my AMS units well. My only thing is that I would prefere some sort of middle support bar perhaps just underneath the top AMS. When loading filament or performing other actions on the units they sway from side to side a bit too much for my liking.
The designer has replied
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athanks for your feedback. I’m happy that the supports are strong enough, but I hear what you’re saying. I didn’t want messy cross-bracing printed pieces or wood back, but perhaps some wires between rear corners would increase stability while keeping it simple. My setup has a wall on one side and the printer on the other so maybe that is swaying my view - excuse the pun!
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