This is a voltmeter I designed to fit forklift battery plugs. Fits most Anderson plugs. I designed the main body to be printed without supports HOWEVER, your printer must be able to bridge a 23mm gap. Use supports if you don’t trust your printer with a 23mm bridge gap. Here’s the link to the voltmeter I used https://www.amazon.com/dp/B00NZV7K3G/ref=cm_sw_r_cp_api_glt_fabc_SNRBVCABSEFAXS6NFFSM Build guide coming soon (maybe)