Improved Spot Welder Box (JQ-DHJ02B)

This is a remix of nushipwright's "Spot Welder Box (JQ-DHJ02B spot welder)" with a handful of improvements listed below.

• Increased wall thickness across the board from 1mm to 2.5mm making it far stronger
• Added 4x M3x8 screws to avoid glue
• Added a Voronoi pattern fan grill
• Added labels to the light holes on the lid for all settings
• Made the light tunnels slightly thicker in some areas to increase printability

Overall, my version is a lot sturdier and safer, but thanks again to nushipwright for creating this model in the first place! Attached is an F360 Archive file for modifying it to your liking.

EDIT 2: I've added a new MK2.1 version with a few minor improvements. First, I've increased the space for the 40mm fan by 0.7mm; the old design would squeeze the fan, causing problems. Second, I've increased the hole widths for the BAT+ and BAT- terminals (Thanks @Sam_491273 for the recommendation). Third, shrunk the main - terminal out size slightly as it was unnecessarily large.

EDIT: The newer JQ-DHJ02B spot welder boards can only accept a max input voltage of 14.4V, otherwise the Overpower (OP) LED flashes, and it shuts off. And on the older boards, giving it exactly 16V would kill it, I speak from experience.

If you like this model, make sure to check out my Spot Welding Pen Grip!