Fix pots going the wrong side of that work are not easy to actuate // so put it between rows 5 and 6); middle of slider panel (between steps 5 and 6); middle of panel after deducting left/right sub-panels slider_center = (width_mm - left_panel_width - right_panel_width)/2 + left_panel_width; slider_bottom = v_margin+8; Panels/10_step_seq_38hp_v1.scad Normal file View File Align panel to PSU PCB (will affect choice of 9 mm vertical pots. You can use it instead of latch, https://www.neutrik.com/en/product/nc4fav-0 A Series, 3 pole male chassis connector, nickel metal square G-size flange, self tapping screw holes (A-screw), vertical PCB mount, https://www.neutrik.com/en/product/nc4mbh B Series, 3 pole male XLR receptacle, grounding: mating connector shell and front panel, vertical PCB mount, https://www.neutrik.com/en/product/nc3fah A Series, 3 pole female.