Quick swap wall hook system - easy customize

The base was drawn in Blender so I could easily slide in any hook or just cover it when not in use. It is very easy to print, it does not require supports, only layer adhesion can be critical, so it's a good idea to add a reinforcing modifier around the main screw in PrusaSlicer and print rather hot.

The hook was drawn in Blender specifically so I could hang my backpack. It's also a fairly easy print, it just requires a tiny support that is automatically generated by PrusaSlicer, as shown in the pictures. If there are supports generated for the upper part of the hook, you can manually block them, they are not needed when printing at 0,2mm layer height. Layer adhesion is also critical here, so I used 4 perimeters and a dense infill, but I could have just reinforced where needed... 

For layer adhesion reinforcement, just add a modifying box and then edit to add infill, perimeters or both.

Then there is the cover, it was also drawn in Blender, to cover the base when no hook is in use but also to be the interface for a custom hook, see below. For printing the cover just do it as for the hook above. You can also turn the cover upside down to print it without supports, then it will have the texture of your printing bed on the most visible side.

For printing a custom hook, just add another file on top of the cover in its original position in PrusaSlicer. It is as simple as right-click on the cover, add part, load, choose the model you want, place it flat on the cover and adjust to the correct height, where the model is in close contact with the cover. Give it a layer height or two to avoid any surprise. Do not lower the hook mesh too much, it must not be visible from the bottom of the cover.

Note that when you print the hook, the cover or a custom hook in its original position, there will be bridging threads inside the rail, next to the small support, see the picture of the green hook. Remove these threads with a sharp knife for a good fit with the base, it takes two minutes, watch out for your fingers tho. 

I got beautiful results with a model of a frog I downloaded, stacked and printed, but I will not share files or pictures of it because of license restrictions. I'll provide some other examples instead.

The #3DBenchy example uses the original and unmodified #3DBenchy mesh from https://www.3dbenchy.com/ 

The Master Yoda hook example uses the artwork of Adam Beamish, with the remodeling of David, from Texas (https://www.thingiverse.com/mustangdave/designs/). I added a remix ready to print in 3mf.

So, it is very easy to turn any 3D model into a quick slide in wall hook, from your favorite artwork to a simple shape or an over-engineered original design… when not in use, just slide in the cover and make the system less noticeable in the wall. You can also customize the cover for aesthetic purposes…

If your screws do not fit the base, I also shared the blender file with all you need to work with the base and the cover. Just modify the screws, the boolean modifiers are already set, ready to export.

I hope you will enjoy this hook system, if you do, do not hesitate to share your prints and remixes. Have a great print!

February 2025 update: The #3DBenchy file is now in the Public Domain, meaning that everyone can now modify and distribute the file. I've just uploaded my remix here. Great move from the #3DBenchy team, thank you!