This is the block that holds the things without any nut-bolt or external things.

" 3D Part Details "

@3D Printing:-- Printer Name :- Creality CR 10 MAX 3D Printer Nozzle Size :- 0.8mm

@Wall :-- Wall Line Count :- 4

@Top/Bottom:-- Top/Bottom thickness :- 1.0mm Top Layer :- 2 bottom Layer :- 2

@Infill :-- Infill Density :- 100% Infill Patten :- Grid Infill Line Multiplier :- 2

@Speed :-- Print Speed :- 50mm/s Infill Speed :- 50mm/s Wall Speed :- 25mm/s Outer Wall Speed :- 25mm/s Inner Wall Speed :- 25mm/s Top/Bottom Speed :- 25mm/s Travel Speed :- 150mm/s

@Support :--- Generate Support :- No Support

Video are also there :--