Made RPi case deeper, added two-section front for the LCD1602 module, added heated threaded inserts (M3 x 6 x 5)for mounting.

I'm using the Waveshare 1602 (RGB, includes JST connector):

https://thepihut.com/products/rgb-16x2-i2c-lcd-display-3-3v-5v

Other 1602s might fit this as well (ex: Adafruit).

With the Waveshare, the JST connector is very tight at the edge but it does fit okay.

Also I had to put a dab of superglue on the LCD shell piece to get it to stay on the middle. The middle seems to fit just fine with friction to the RPi shell. Once the heated inserts are installed I used some small M3 nylon standoffs in the LCD shell and 8 x M3 nylon screws to secure everything.

Bambu X1C

No

Yes

.20 or .16

15