About this 3D model
Thanks to the original Designer https://www.thingiverse.com/thing:5746805 The rear of the P1P is left open with the Bambu published mod plates. This extends the rear cover to drastically reduce heat loss. He still left some gap to make sure there was no interference with rear bumpouts. Ive done this Remix to fit it on the P1P Buildplate, create a joint-insert to be stabilized to each other. While im writing this, i print it myself, so post yours here to make it a perfect fit if there are some issues. Update 1: Joint Size reduce