Xteink X4 case
Description
Case for XTEINK X4 e-book reader.
Hinged, magnets holding it closed, transparent cover for the screen area, buttons available, e-reader attached to Magsafe ring in the case. Screen is protected from smudging and dirt but you can read it without taking it out of the case, nav buttons exposed, power button and all sockets protected. The screen cover is made from common transparency (comb-binding front cover), you can use any thin transparent plastic, and if it scratches, just replace it.
XTEINK X4 is ESP32 based, custom open-source firmware available and fully hackable.
FreeCAD project attached, parametric, so you can change a lot from spreadsheet.
Artifacts list:
1mm wire, about 24cm.
2x1mm magnets, 8pcs
A sheet of transparency or plastic packaging.
Magsafe steel ring (two are included with the ebook reader).
Cyanoacrylate glue (superglue)
Some common glue that doesn't leave vapor (rubber-cement?)
Optionally regular paper printer, sticky tape, scissors (but you can use the 3D printer too).
Instructions:
Print top, bottom, hinge. Simple print, no supports needed.
Insert 2 magnets per socket into the 4 magnet sockets, affix with superglue. Make sure the polarity is right (Easy method: put 4 magnets into bottom, attach 4 magnets on top of these, then slot the top onto them.)
Apply minuscule amount of superglue to keep the magnets in place.
Let it sit half an hour till the superglue dries thoroughly or you'll get its vapor all over your screen cover, reader, etc.
Either print the PDF on paper, cut out along the outer line, or 3D print the cutout-pattern.stl.
Affix the pattern with sticky tape to transparency, then draw around with the marker. Cut out the front cover from transparency.
Smear some of the rubber-cement type glue along the edges of the screen opening on the inside of the top cover. Affix the transparency screen cover.
Straighten the wire. (clamp one end in vise, the other in drill. Pull taut. Turn one way till twist curls start showing up, then opposite, then return to "neutral".
Thread the wire through all hinge holes of all parts separately to clear out any burrs that could obstruct it later. Use pliers to force it if it catches.
Fold the wire into a square-U shape with 6mm separation between the two long "arms". Keep the lengts ~5mm different, to make threading easier.
Put the covers and hinge together, thread the wire through all three at once.
Cut the ends sticking out the other end short and bend them together.
Peel the paper off the Magsafe ring and affix it to the back in the notch for it.
Affiliate links:
2x1mm magnets, gazillion of them
Copper wire (I used steel, but this one will work too.)