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To use 7.5mm holes, not 6mm - alpha pots - 9.8mm, +2mm rotary - 11.5mm, +3.5mm -- biggest by far, maybe 12.6mm? SR2511 series are 11.43? Maybe more? Distance between pcb and front panel, horizontal PCB mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch, 1.75u, plate mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch 1.25u PCB Cherry MX keyswitch, 2.00u, plate mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch ISO enter PCB Cherry MX keyswitch ISO enter PCB Cherry MX keyswitch 1.00u PCB Cherry MX keyswitch, 2.25u, http://matias.ca/switches/ Matias ALPS keyswitch 2.75u plate Cherry MX keyswitch 1.50u plate Cherry MX keyswitch, ISO Enter, PCB mount, color coding possible, https://www.neutrik.com/en/product/nc5fav-sw A Series, 3 pole female receptacle, grounding: mating connector shell and front panel, vertical PCB mount, black chrome shell, https://www.neutrik.com/en/product/nc3fbv2-b B Series, 3 pole XLR female receptacle with 6.35mm (1/4in) stereo jack, horizontal PCB mount, https://www.neutrik.com/en/product/nc4fbh B Series, 4 pole chassis connector, nickel metal square G-size flange, self tapping screw holes (A-screw), horizontal PCB mount, asymmetric push, https://www.neutrik.com/en/product/nc5fah-da A Series, 3 pole male XLR receptacle, grounding: mating connector shell and front panel, horizontal PCB mount, https://www.neutrik.com/en/product/nl2md-v speakON Chassis Connectors, 8 pole chassis connector, black D-size flange, self tapping screw holes (A-screw), vertical PCB mount, https://www.neutrik.com/en/product/nc3mbv-1 B Series, 5 pole male XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, vertical PCB mount, https://www.neutrik.com/en/product/nc4mbh B Series, 3 pole female XLR receptacle, grounding: separate ground contact connected to shell ground, but not to front panel Added schmancy pcb for v2 front panel components version

main VCA/Panels/dual_vca.scad 393 lines $fn=FN; footprint_depth = .25; //non-printing, barely-visible outline of component footprints width = 17; // [1:1:84] // Four hole threshold (HP four_hole_threshold = 10; // Number of facets of rounding cylinder ct = -0.1; // circle translate? Not sure. Pad = 0.2; // this should be possible, too Manual trigger .