Everything seems to be half-harzadously putted together. I recommend to use CNC to cut the casing to look more pretty and definitely clean everything and not half-recycled materials for more reliability and cleanliness. I also recommend to add safty features and put things more stable way along wirh using specific safty materials like Heat Shrink Tubing and Cable Lugs. And make some slots for screws or bolts for maintainance or for the ease od fixing if it broke. Good concept but it can be perfected.
