A mod for Trianglelab DDB RNC Extruder (Bondtech BMG clone) that lets you see what's going on inside.

Parts needed :
1x DDB RNC Trianglelab
1x M3 Square Nut

How to assemble :
1. Disassemble the DDB RNC
2. Discard the nylon washer for the thumb spring
3. Put in M3 Square nut on the new cover up top
4. Reassemble as is

Note : AMS is definitely not needed, pics just for cosmetics for my brand.