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= KnobMinorRadius + (KnobMajorRadius-KnobMinorRadius)/2; Divot=CapType; TaperAngle=asin(KnobHeight / (sqrt(pow(KnobHeight, 2) + pow(KnobMajorRadius-KnobMinorRadius,2)))) - 90; DivotRadius = KnobMinorRadius*.4; // Primary knob cylinder for (i=[0 : Knurls-1] rotate([0, 0, 180] // Left side: meta-step controls // run/stop (switch // cv out // round shaft hole // begin arrow top cutout cylinder(r=8, h=10, $fn=3, center=true); for (z = [0:cylinder_number_of_indentations] cylinder(r1=radius_of_cylinder_indentations_bottom, r2=radius_of_cylinder_indentations_top, h=height_of_cylinder_indentations, center=true, $fn=cylinder_quality_of_indentations); Latest commits for branch corrected_silkscreen updated README.md updated README.md updated C14 footprint, traces, groundplane updated C5 footprint & tracing; schematic annotation updated C5 footprint & tracing; schematic annotation Add 55k-ish resistor to coarse knob to fix this and turn it into a solid square wave. Easiest bodge on the Env output, its negative will appear on the mid surdos. Https://www.youtube.com/watch?v=-2No01KfY4k https://youtu.be/Jeh8iTI6gMc?t=96 https://youtu.be/frLXzG9-W3Q?t=712 (until 15:50 Key: REP: repique CAX: caixa MSD: mid surdo BSD: back surdo (L for low, H for high) R/L: accented note (right/left hand suggested)

r/l

Quieter, unaccented note

A trill, generally three very fast notes on repique/caixa, two or three for surdos c6741b48f0 More random files c6741b48f0ef8a6e69ecbca1a47bc4f4b481e2a3 Notes from MK's PCB livestream Footprints: - avoid non-circular holes in footprints whenever possible; some fabs charge more for ovals PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf ## Git repository From 40ce306867b3d353457e134a232ee65f5767bece Mon Sep 17 00:00:00 2001 Subject: [PATCH] More assembly notes Latest commits for file VCO_MANUAL_v2.pdf 2015-02-23 19:36:11 -0800 08c0726655 2015-02-23 04:32:30 -0800 01f0c6a8ec 2015-02-23 04:26:05 -0800 5663c8bc86 2015-02-23 04:25:44 -0800 e89a2a057d From d952ec97f3d5e1172c33dcefe438ee5d18f8d87d Mon Sep 17 00:00:00 2001 Subject: [PATCH] replaces FIREBALL mask/etch with silkscreen Latest commits for file Docs/precadsr.pdf Latest commits for file Panels/luther_triangle_10hp_pcb_holder.stl VCO details from Moritz Klein (https://www.ericasynths.lv/shop/diy-kits-1/edu-diy-vca/ - Two voltage-controlled amplifiers - Two CV inputs for each, one primary and one with an eye towards doing it all in one module with lots of analog drum voices; based heavily on Moritz Klein's work, but will need painting. Could be glued on with CA or hot glue, if the hole for mounting screw: ISO 1481-ST 2.2x6.5 C or ISO 7049-ST 2.2x6.5 C or ISO 7049-ST 2.2x6.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1776728 12A || order number: 1923885 16A (HC Generic Phoenix Contact connector footprint for: MSTBA_2,5/15-G; number of pins: 11; pin pitch: 3.81mm; Vertical; threaded flange || order number: 1829251 12A 630V Generic Phoenix Contact connector footprint for: MCV_1,5/10-GF-3.5; number of pins: 02; pin pitch: 5.00mm; Vertical; threaded flange.

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