This is a fully 3D printable ball mechanism gravity hanger (ø16 mm ball included) On which you can hang clothes (textiles) or paper.
Inspired by traditional ticket bill rail racks, this gravity hanger offers a contemporary twist!
Please kindly take a moment to show your by giving this a LIKE and I also hope you find it interesting and valuable enough to it! It would be really cool to see photos of your make(s). If you post your print on Instagram please tag me: @makers_designjournal =D
UPDATES:
12/11/2024
INCREASED DEPTH OF PATTERN ON OUTER PART
From suggestions the depth of the pattern On the outer part has increased from 0.3mm to 0.4 mm to get a more sharp pattern.
The pattern now is two layers in depth when printed with 0.2 mm layer height
(when deg this I had 0.3 mm layer height in mind, but I decided to print it with 0.2 mm layer height which resulted in the pattern only having one layer height depth).
Both the 3mf- and the stl files are now updated. I have replaced the stl file for the 0.3mm version with the updated 0.4 mm-version and renamed it : “Outer Part deeper PATTERN Ballmechanism”
05/11/2024
CHANGED TEST OUTER PART BALLMECHANISM GRIP stl file.
The new version has a tab to GRIP and hold on to. Especially handy if the test piece fits very snuggly (although the screw hole on the part can be utilized to press out the male part with a small object if stuck). The 3mf file is not affected, it had this version from first .
02/11/2024: CHANGED SCREW STL FILE , this version, “Screw with more clearence V.2.” like the file name says, has more clearance. The 3mf file Is not affected, it had this version from first . If you ed the loose stl files and printed before saturday 18:38, 2 November 2024 (CET) , I recommend you reprint the screw (It is enough to reprint only the screw) in this latest version.
The hanger consists of 4 parts:
*an inner part, that attaches to the wall using two screws (fastening screws are not included in this listing…) this part has a slot for a ø16 mm ball and a female thread for a 3d printed screw and the cavity for the mating outer part
*an outer part (In two versions: one with a decorative pattern and one without any pattern) that connects to the wall-mounted piece and provides counter-pressure to the ball.
*a 3d printed screw that threads into the wall mounted part and acts as a set screw to lock the outer mating part to the wall mounted part, (ensuring the ball remains entrapped between the two parts)
*a 3d printable ball
A traditional marble ball is more reliable if you intend to use this holder to hold paper.
If you choose the marble-ball-route and have a different size marble, feel free to scale the models to appropriate measurements (note: you obviously have to scale all the parts with the same scale factor if doing this).
It is worth mentioning that for holding paper, a traditional marble ball is a more reliable option. During the testing of this 3D printed ball, minor issues were noticed when hanging paper on it. This is due to slight irregularities, layer steps, on both the 3D printed ball and the mating part's cavity. These steps can sometimes cause the ball to catch and impede free rotation, essential for positioning the ball against the paper. This said you can get it to work: I had a success rate of about 90% with the 3d printed ball. The 10% miss rate meant I had to quickly re- adjust the paper while still holding it sandwiched between the ball and the outer part.
To enhance the smooth operation of the ball, I recommend printing it in the lowest (finest) layer height setting on which you are able to get a satisfactory result with your specific printer.
So, if used as a hanger for clothes and other fabrics it works just fine with the 3d printed ball. And, as said above, if intended to use is for a paper I recommend a marble ball
If you intend to print the inner part and the outer part with two different filaments I suggest you print the test parts with the intended filament for each part to make sure there is enough clearance for the parts to fit together (I printed with different filaments and parts did not fit satisfactory even though it was the same brand, same type, but different color). If they don't fit together at all I suggest you scale down the outer (male) part to 99%. If you are printing all the parts with the same filament the clearance should sufficient (it is designed with 0,2 mm clearance = sliding fit for 3D printing)
I have attached 3mf files generated in prusa slicer. They have the recommended layer height, amounts of perimeters and infill.
In these 3mf files I have applied fuzzy skin to the outer faces of the two main components, but I have applied modifiers which block fuzzy skin where parts fit together: screw hole, and slider and slot for slider. The screw for obvious reasons doesn't have any fuzzy skin applied to it.
In the 3mf file with a complete platter the outer part Is the version with a pattern. I you don't want the patterned version, just right click on this object and replace the stl file with the part named “Outer Part NO PATTERN Ballmechanism”
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