Hey there @popflier!
- The style he uses in this is a “top adjustment” or “Vertical” Cermet pot 3296w. The product description in the link you gave looks right to me. I will link below the same from Tayda just in case, but you probably have ones that work already.
- To make your own, you need something that can clamp. I use a cheap vise, but I suppose careful application of force with other methods may work. Making the eurorack cables needs three components. The ribbon cable, the IDC socket, and the IDC socket connector. In the case of eurorack, its 16 pins (2x8). I print out a reference of the pin-out for the power bus to make sure i set everything up right. Find that below.
- A lot of us are still learning bud, myself included. That list above is just work I did that I didn’t want other to have to do as well. As @Riggidyboo points out, a capacitors capacitance can be represented in different units. Its like saying either 1 meter or 1000 mm. Means the same thing. You see this sometimes for reasons unknown to me. In this case, the BOM just listed the same link twice. No biggy! What i tend to do is buy the ceramic variety whenever i can, its cheaper and they dont have a polarity to get wrong (doesnt matter how you put it in). That said, the 1nf (nanofarad) caps in the BOM are the same as a 0.001uf (microfarad) cap in capacitance. I just print out a chart and reference it just in case (every time) also I label it on my baggies.
Whatcha need for Preset Trimmer Pots:
10K OHM TRIMMER POTENTIOMETER CERMET 25 TURNS 3296W
https://www.taydaelectronics.com/potentiometer-variable-resistors/cermet-potentiometers/3296w/10k-ohm-trimmer-potentiometer-cermet-25-turns-3296w.html
$0.28 / £0.21
100K OHM TRIMMER POTENTIOMETER CERMET 25 TURNS 3296W
https://www.taydaelectronics.com/potentiometer-variable-resistors/cermet-potentiometers/3296w/100k-ohm-trimmer-potentiometer-cermet-25-turns-3296w.html
$0.28 / £0.21
20K OHM TRIMMER POTENTIOMETER CERMET 25 TURNS 3296W
https://www.taydaelectronics.com/potentiometer-variable-resistors/cermet-potentiometers/3296w/20k-ohm-trimmer-potentiometer-cermet-25-turns-3296w.html
$0.28 / £0.21
Whatcha need for Capacitors:
What i did was just look up the values used in all of the projects and grab a couple hundred of them. Feel free and alter that plan by grabbing a little bit of a variety. Definitely use some more than others though, keep that in mind. Tayda doesnt care about small orders of individual components, the support there has told me that they strive to cater to the hobbyist.
1nf = 0.001uf
0.001UF 50V CERAMIC DISC CAPACITOR AEC BRAND - BEST PERFORMANCE
https://www.taydaelectronics.com/10-1nf-50v-ceramic-disc-capacitor.html
$0.03 / £0.023
10nf = 0.01uf
0.01UF 50V CERAMIC DISC CAPACITOR AEC BRAND - BEST PERFORMANCE
https://www.taydaelectronics.com/0-01uf-50v-80-20-ceramic-disc-capacitor.html
$0.03 / £0.023
100nf = 0.1uf
0.1UF 50V CERAMIC DISC CAPACITOR
https://www.taydaelectronics.com/10-x-0-1uf-50v-ceramic-disc-capacitor-pkg-of-10.html
$0.01 / £0.0076
10uf:
10UF 50V 105C RADIAL ELECTROLYTIC CAPACITOR 5X11MM
https://www.taydaelectronics.com/10uf-50v-105c-radial-electrolytic-capacitor-5x11mm.html
$0.02 / £0.015
Whatcha need for a eurorack cable:
Power bus:
16 CONDUCTOR AWG 28 FLAT RIBBON CABLE 1FT (30CM)
https://www.taydaelectronics.com/hardware/cable-wire/awg-28-16-conductor-flat-ribbon-cable-1ft-30cm.html
$0.33 / £0.25
IDC SOCKET CONNECTOR 2.54MM 2*8 PIN DOUBLE CONTACT
https://www.taydaelectronics.com/connectors-sockets/box-header-connectors/idc-socket-connector-2-54mm-2-8-pin.html
$0.30 / £0.23
16 CONDUCTOR AWG 28 FLAT RIBBON CABLE 1FT (30CM) (This is sold by the foot, be sure to get more than one foot!)
https://www.taydaelectronics.com/hardware/cable-wire/awg-28-16-conductor-flat-ribbon-cable-1ft-30cm.html
$0.33 / £0.25
Rotary Switch:
EDIT: As @Riggidyboo mentioned, the original link I posted was make before break, I think Sam mentioned you needed break before make in a build video if i recall.
ROTARY SWITCH 1 POLE 12 POSITION ALPHA SR2611F
https://www.taydaelectronics.com/rotary-switch-1-pole-12-position-alpha-sr2611f.html
$1.69 / £1.29
Also, feel free to buy from ebay if you find a better deal, but the costs for the 3mm led is the same at tayda. If you are buying from them anyway, you can also save with shipping costs. The resistors are more expensive at Tayda,
LED 3MM BLUE
https://www.taydaelectronics.com/leds/round-leds/3mm-leds/led-3mm-blue-diffuse-lens.html
$0.02 / £0.015
$1.49 / 200 = $0.00745 per resistor
$1.69 / 200 = $0.00845 per resistor
Compare that to the $0.012 / £0.0092 you pay at Tayda, with variable quantities! For $0.00455 / £0.0035 more in price, you can add these to your cart with other components if you are buying from them. that eats the cost. Additionally, if you dont need 200pcs, you save the difference there too!
Lets say you dont need 200x 43K resistors, and you only need say like 15. It costs you $0.18 / £0.14, not $1.49 / £1.14, a savings of $1.31 / £1.00!