This is a decorative mezuzah case for your home, with several style and mounting options.
Update 2024-10-15: A set in the larger ⌀18x158mm size is now available.
Design features
Large space for the klaf (two sizes: ⌀18x128mm and ⌀18x158mm).
Small lip on either end of the opening to help prevent the scroll from falling out.
Mounting options:
Hidden mounting with either a #6 countersunk wood screw or a finishing nail
Screw-through mounting for a #6 countersunk wood screw (might work with a common nail, too)
The hidden mount option is angled at 45 degrees so you can attach it on an angle even if you're close to the stop moulding.
Style options:
Decorative lines
Partial decorative lines (interrupted where the shin is)
No decorative lines
The back is 30mm wide to leave plenty of room if you want to put some 1" masking tape over the opening.
File names
L is the length of the opening for the klaf, either 128mm or 158mm.
No decorative lines
Partial decorative lines
Full decorative lines
Hidden screw
Mezuzah r1 18xL HDN.stl
Mezuzah r1 18xL HDP.stl
Mezuzah r1 18xL HDF.stl
Screw-through
Mezuzah r1 18xL SDN.stl
Mezuzah r1 18xLSDP.stl
Mezuzah r1 18xL SDF.stl
Printing instructions
Choose the version you want (consult the table above).
Print the .stl file as-oriented (vertically on the print bed).
Tips:
Use your slicer to hide the seams in the back.
You'll probably need a brim, but not any other supports.
The reason for the vertical orientation is to give the cylindrical front a more consistent look. You can always try printing it lying down and see what works best for you.
Installation instructions
Choose your mounting option (#6 countersunk wood screw, or nail).
The two fasteners must be 160mm apart to properly engage the case for the 128mm lengths, and 190mm apart for the 158mm lengths..
Positioning instructions and tips:
If you're using the hidden mounting version with screws, you can also print a screw-through version for alignment; the installed position will be the same for both. Plus you'll have an extra to give away as a gift.
Pay close attention to the position the fasteners will be in once they slide fully into the case.
The position is slightly different for screws and nails, but both are still 160mm/190mm apart (depending on if you are using the 128mm/158mm sizes).
Check that you have no obstructions on the door frame that will prevent you from sliding the case into place.
Test the fastener depth by sliding the empty case over it and checking for snugness.
Insert the scroll into the case.
Recite the blessing.
Slide the case over the fasteners.
If the fastener depth must be adjusted after you have said the blessing, please consult your preferred rabbinical authority to determine if an additional blessing is required.
Notes
There are lots of little easter eggs (passover eggs?) in the lengths, angles, etc. of various features.
I designed this model in OpenSCAD and it's fully parameterized. If you'd like a simple modification for another purpose (e.g., number of vertical lines, size of the opening, screw size, different font for the ש, etc.), send me some measurements and I'll see what I can do.