Core One+ Magnetic Top Cover, simplified, with side handles and indicator

I liked the concept of the Core One/+ Magnetic Top Cover, but I felt the tab handles were too big.  There were other handles available, but I wanted the handles to be on the side, not protude past the frame of the Core One, and complement the handles on the sides of the printer.

While adapting the original model to add handle slots to the side frames, I discovered that there were two types of frames, some with thin rails where the corner fit in, and some with thicker rails.  This added what I thought was unnecessary complexity to the system since you had to keep track of which corner went where.  By making these rails all the same size, that complexity is eliminated.

There are a couple of different Core One/+ vent indicator designs, but I liked the way the original handle was engineered to fit inside the front frame.  It felt more solid.  So I modified it to take the handle off and just function as an indicator.  Without the handle, the seams where the two parts of the front frame come together were visible, so I redesigned the front frame to be a single piece, printed on it's face so that the chamfers in the indicator window aren't distorted.

The long handle for which this remix was originally created is:

The handle is my original design.

I printed my remix in PETG using the settings in the 3mf files, although PLA should work just as well (I used PLA to print all my prototypes).

Additional Notes

• The stick from the printhead doesn't seem to overlap the bracket that opens & closes the vents.  This may be by design so that a stuck vent doesn't cause the printhead to stall and cause other problems with the print.

• Some lubricant may be necessary to keep the vent mechanism sliding easily.  I sprayed a bit of silicone lubricant on a Q-Tip and then rubbed it around the interior of the front rail where the vent indicator goes.