Bearing Kit fpr A1 Mini Spool Holder by Krokkus

Krokkus

3D Printer>3D Printer Parts

IP Report

Print Profile(1)

All

A1 mini

P1S

P1P

X1 Carbon

X1E

H2D

0.2mm layer, 2 walls, 15% infill

2.8 h

1 plate

4.3(6)

Open in Bambu Studio

Boost

145

Released

Description

I came up with this solution because seeing the filament roll just resting on the spool holder didn't seem like a good job to me. Since I didn't want to ruin and modify the holder, the difficulty was to insert the bearings on the holder, so they had to be cut in half. Almost all the rolls I own have a 50mm central hole, so I adjusted the size to that diameter.

You need to be careful when printing the two parts of the bearing: given the proximity of the rollers and spacers, even though they are separated by micro spaces, they can remain however a little attached to each other, so you must first assemble the two parts, check that all the rollers and their spacers are free from each other, using a small screwdriver with a flat tip if necessary until all the parts are completely detached and check that everything is free to move.

Having verified the normal operation of the bearings, before separating them to insert them into the holder I recommend applying adhesive tape to the rollers and spacers to keep them firmly together in the printing position and then re-couple them around the holder arm in the final position. I have attached however a screenshot with the assembly sequence. I hope I have been helpful.

spool holder a1 mini

Comment & Rating (16)

@user_2469457014

I liked it, so I printed it and attached it to the A1 mini spool arm I'm just starting with 3D printing and need a 76 cm inner spool diameter I'll keep searching and use the adapter for now really well done work I'll probably be able to use the adapter on smaller spools later

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@wakulandia

how can I get the print profile or the stl?

The designer has replied

@user_1651412785

Hello. I have attached the srl files in the project upload.

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@wakulandia

Replying to @user_1651412785 :

Thank you!

@Ray001

How is it secured so that it doesn't slip out of the bearings?

The designer has replied

@user_1651412785

The roller adheres tightly to the bearings, preventing slippage, and the end cap secures the assembly sufficiently to prevent the unlikely ejection of the filament roll. I have never experienced the roll falling out, partly because the bearings are further secured by the original holder's retaining clip—the very reason for the bearings' halved design.

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@user_3492948167

I love the design, and I can't wait to use it! I've had a couple issues with the print profile: 1. You only have one bearing on the plate. In your pictures, you have two. If it needs two, add another bearing to your profile. 2. The spacers you attach to the original arm have failed twice as is, even at 50% speed, when the filament tries to bridge at the apec of the half-circle. I am adding supports to see if that helps (I'm sure it will). I think with those two changes you'll have a really good product!

The designer has replied

@user_1651412785

Hello. In the spacer file notes I recommended using supports to prevent print failure (it happened to me). Regarding the bearing, I had already installed one on the spoiler to test it and didn't see the need to remove it. After all, I indicated the number of parts needed to complete the kit in a screenshot.

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@user_996969467

Boosted

very precise print, bearings work real well, thanks

@user_1651412785

Hello. In the file notes concerning the spacers, I indeed suggested using supports because there's a risk of print failure. There are two bearings, you're right, I should have added the second one to the image to avoid confusion

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