Construction Grid compatible to replace lost ++ plate.

small version is available for a quick print to test proper fitting.

Notes

• print flat as in STL
• Freecad model provided.

Print the small model first and see if fit.
Assuming your printer is giving proper dimension, to adjust fitness of part:

• increase printer flow (by a very small amount) - if parts are too loose
• decrease printer flow if parts are too tight

On my Ender 6 with a 0.6 Nozzle

• flow=1.0 - gives a good fit
• flow = 0.925 - gives a loose fit