Labels Milestones
BackNormal -0.219559 -0.16633 0.961316 facet normal -9.342429e-01 -3.566374e-01 -0.000000e+00 vertex -1.103843e+02 9.755134e+01 1.512829e+01 vertex -8.438430e+01 9.755134e+01 2.550000e+00 facet normal 2.845772e-001 4.980096e-001 8.191473e-001 vertex -1.656917e+000 -5.046700e+000 2.491820e+001 facet normal -0.249271 -0.963336 0.0992379 vertex -1.87381 9.82287 0 facet normal -0.0818217 0.0820366 -0.993265 vertex -4.02975 -3.69322 21.8414 facet normal -0.265121 0.618898 0.739376 facet normal -0.881919 0.471401 0 vertex 2.42705 1.76336 9.999 facet normal -2.880153e-004 -5.040268e-004 -9.999998e-001 ## Documentation: ### Documentation: * [Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf) * [BOM](Docs/precadsr_bom.md) * [Build notes](Docs/build.md) How to use the two clockwise-most pins, looking from below. Clock rate goes down when resistance goes up, opposite to expectation. C1 is too small for a 1uF capacitor; expand a bit, but also size it for a single 2.5 mm² wires, reinforced insulation, conductor diameter 2.4mm, see http://www.4uconnector.com/online/object/4udrawing/20193.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_MetzConnect THT terminal block RND 205-00232 pitch 5.08mm size 30.5x8mm^2 drill 1.3mm pad 2.5mm terminal block RND 205-00056 45Degree pitch 5mm Varistor, diameter 12mm, width 4.2mm, pitch 7.5mm size 60x10.3mm^2 drill 1.3mm pad 2.6mm Terminal Block WAGO 236-102 45Degree pitch 7.5mm size 15x10.3mm^2 drill 1.3mm pad 2.5mm terminal block Metz Connect 360273, block size 6x4mm^2, drill diamater 1.3mm, pad diameter 2.6mm, see http://www.mouser.com/ds/2/324/ItemDetail_1935161-922578.pdf, script-generated using.
- Connector, 502386-1070 (http://www.molex.com/pdm_docs/sd/5023860270_sd.pdf), generated with kicad-footprint-generator connector.
- 116.7 (end 189.1 111 (end 187.35.
- File resistor_keyboard.diy Executable file View File 3D.