Breadboard with 4 mm safety banana plugs

thingiverse

I couldn't locate any breadboards featuring safety plugs on the market - only those equipped with outdated, non-safety 4 mm banana plugs and often low-quality connectors. Consequently, I designed my own. This item was crafted using a laser cutter with 4 mm plywood. The layers were carefully stacked together and secured with standard wood glue between each layer. The holes for the small cables connecting the plugs to the breadboard were drilled out with a 3 mm drill. It is specifically designed to accommodate two 830 tie point breadboards, along with four 4 mm banana safety plugs spaced at the standard 19 mm interval. I opted for "crystal breadboards" from Ali Express, as my experience has shown that their quality is slightly superior to that of normal white breadboards. The holes for the safety plugs are tailored to fit MultiContact XUB-G 1 ST plugs (https://www.conrad.de/de/laborbuchse-buchse-einbau-vertikal-stift-4-mm-rot-multicontact-xub-g-1-st-735540.html). The board is engineered to support three different voltages with a common ground.