Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3800569.
Spare bed holder plate for TRONXY P802 or ANET A8 printer. The board must be printed on a 3D printer that allows printing at least 222x222 mm. I printed it on my modified FLSUN allowing 310x310 printing.
The board has a height of 8mm and it is necessary to use at least 85% filler for strength. PLA material is sufficient, the plate is not thermally stressed and has sufficient strength.
The board has universal use for 3 or 4 bearing bushes. I use 4 bearings for better grip. I recommend this modification to everyone.
The belt attachment is shown in the figures. The belt holds plates in the slots. A tightening strap (2.5 mm) is used to tighten the belt. This is the mount for the P802. If ANET is used, the connection is the same.
If necessary, drill the holes with a 3.5mm or 4.5mm drill bit according to the hole.