Battery case for DIY iontophoresis machine

thingiverse

This is a a print-in-place hinged battery box meant to put two 9v batteries connected to an on-off-on switch. The contraption is used as a treatment for a condition known as hyperhidrosis. You can read more here: https://makesmefeel.com/project/iontophoresis-machine/ It uses a switch such as the one linked below, combined with two wires with crocodile clip ends. The batteries are held in place with two 9v battery holders, also linked below. I will upload a schematic soon, but basically you want to connect the batteries in series, then wire them to either of the two outer pins of the switch. Then cross wire between two outer pins. Lastly, use the two middle pins to connect the wires going to the crocodile clips. Switch: https://www.amazon.com/Twidec-Rocker-Toggle-Position-Waterproof/dp/B07LBMMN2Y/?_encoding=UTF8&pd_rd_w=EkIM6&content-id=amzn1.sym.716a1ed9-074f-4780-9325-0019fece3c64&pf_rd_p=716a1ed9-074f-4780-9325-0019fece3c64&pf_rd_r=26G8EP4T4WJME4CHTDVX&pd_rd_wg=HzplE&pd_rd_r=a43c1d1b-a920-4980-ac84-20ddc009049d&ref_=pd_gw_ci_mcx_mr_hp_atf_m Battery holders: https://www.amazon.com/RuiLing-Battery-Plastic-Batteries-Container/dp/B07Q1N2MHT/ref=sr_1_2_sspa?crid=HE9IOVK4U9TY&keywords=9v+battery+holder&qid=1661791527&sprefix=9v+battery+hold%2Caps%2C190&sr=8-2-spons&psc=1