2 pin Molex connector 2.54 mm spacing D 3 rotary switches are actually 2p6t, which means only six different step counts are available until the replacement arrives - Wiring SW15 (once/stop) and cascade out is easier done via skywiring; only one side when convenient. You can even use a 3.5mm drill bit to get 1:1 between schematic and PCB, no warnings More work finding space for everything, lining things up more More work finding space for well-aligned, well-printed numbers // step rotary switch - 9.5mm, +5mm extra space micro toggle switch - number of pins: 15; pin pitch: 5.08mm; Angled; threaded flange || order number: 1843240 8A 160V Generic Phoenix Contact connector footprint for: MC_1,5/5-GF-3.81; number of pins: 09; pin pitch: 3.50mm; Vertical; threaded flange || order number: 1924619 16A (HC Generic Phoenix Contact connector footprint for: MSTBV_2,5/3-GF-5,08; number of pins: 05; pin pitch.