Rotaries - turnracing/turnracing-diy GitHub Wiki
It's important to understand the difference between a rotary encoder and a rotary switch. A rotary encoder can be connected to a controller via 3 pins (an additional 2 pins if it has a button function) and have incremental steps, a and b for example. A rotary switch has multiple pins and is typically connected with a resistor ladder PCB or by other means, these have defined positions, 1-12 for example.
Here are some rotary encoder recommendations, check out this comparison video by one of our Discord members!
https://github.com/turnracing/turnracing-diy/assets/12876844/2447e01f-a478-4630-ab2b-035038d9cac7
Rotary Encoder List
| Manufacturer | Part Number | Detents | Detent Strength | Switch Operating Force | Shaft Length | Shaft Diameter | Shaft Type | Link | Datasheet |
|---|---|---|---|---|---|---|---|---|---|
| Bourns | PEC11H-4015F-S0016 | 16 | 210 gf-cm | 610 gf | 15mm | 6.35mm | Flat | https://octopart.com/pec11h-4015f-s0016-bourns-109404204?r=sp | https://www.bourns.com/docs/product-datasheets/pec11h.pdf |
| Elma | E33-VT0G0-M01T | 16 | 450 gf-cm | 610 gf | 15.5mm | 6.35mm | Flat | https://www.elma.com/-/media/products/products-files/e33_datasheet_e.pdf | |
| Elma | E33-VT630-M03T | 16 | 250 gf-cm | 610 gf | 7mm | 6.35mm | Flat | https://octopart.com/e33-vt630-m03t-elma+electronic-24207840?r=sp | https://www.elma.com/-/media/products/products-files/e33_datasheet_e.pdf |
| Elma | E33-VTOG0-M03T | 16 | 0 gf-cm | 0 gf | 0mm | 0mm | Flat | https://www.elma.com/-/media/products/products-files/e33_datasheet_e.pdf | |
| Elma | E18-VA0-1D0-M03T | 16 | 0 gf-cm | 0 gf | 0mm | 0mm | Flat | 0 | |
| Elma | E18-VA0-1D0-M72T | 16 | 0 gf-cm | 0 gf | 0mm | 0mm | Flat | 0 |
Rotary Encoder List Archive (no longer recommended)
| Manufacturer | Part Number | Detents | Detent Strength | Switch Operating Force | Shaft Length | Shaft Diameter | Shaft Type | Link | Datasheet |
|---|---|---|---|---|---|---|---|---|---|
| CTS | 288T232R161A2 | 16 | 100-500 gf-cm | N/A (No Switch) | 25.4mm | 6.35mm | Round | https://octopart.com/288t232r161a2-cts+components-1280920?r=sp | https://www.ctscorp.com/download/21275/ |
| CTS | 288T220R161A2 | 16 | 100-500 gf-cm | N/A (No Switch) | 15.8mm | 6.35mm | Round | https://octopart.com/288t220r161a2-cts+components-82204909?r=sp | https://www.ctscorp.com/download/21275/ |
| CTS | 288V232R161B2 | 16 | 100-500 gf-cm | 350 gf | 25.4mm | 6.35mm | Round | https://octopart.com/288v232r161b2-cts+components-1438034?r=sp | https://www.ctscorp.com/download/21275/ |
| CTS | 288V220R161B2 | 16 | 100-500 gf-cm | 350 gf | 15.8mm | 6.35mm | Round | https://octopart.com/288v220r161b2-cts+components-118681499?r=sp | https://www.ctscorp.com/download/21275/ |
Here are some rotary switch recommendations. In order to use your typical 6.35mm rotary knob with a Grayhill 56 series you can use the TE Connectivity KR104 Adapter.
Rotary Switch List
| Manufacturer | Part Number | Positions | Detent Strength | Shaft Diameter | Link | Datasheet |
|---|---|---|---|---|---|---|
| Grayhill | 56DP30-01-1-AJN | 12 (Adjustable) | 540 gf-cm | 3.2mm | https://octopart.com/56dp30-01-1-ajn-grayhill-13057 | |
| Lorlin | CK1029 (Solder Tag) | 12 (Adjustable with Fixed Stop) | 850 gf-cm | 6mm | https://octopart.com/ck1029-lorlin-2153830?r=sp | https://lorlinelectronics.co.uk/product/ck |
| Lorlin | CK1049 (PCB) | 12 (Adjustable with Fixed Stop) | 850 gf-cm | 6mm | https://octopart.com/ck1049-lorlin-5408094?r=sp | https://lorlinelectronics.co.uk/product/ck |
| Leo Bodnar | BBI-12 | 12 | Unknown | 6.35 | http://www.leobodnar.com/shop/index.php?main_page=product_info&cPath=98_100&products_id=207 | http://www.leobodnar.com/shop/index.php?main_page=product_info&cPath=98_100&products_id=207 |
| Leo Bodnar | SLI-12 | 12 | Unknown | 6.35 | http://www.leobodnar.com/shop/index.php?main_page=product_info&cPath=98_100&products_id=201 | http://www.leobodnar.com/shop/index.php?main_page=product_info&cPath=98_100&products_id=201 |
Note: the Lorlin rotary switches in the above have a fixed starting stop, if you require unrestricted rotation you will need to open them and cut the stop. There may be a part number that does not have this but you will need to find that model.
Note: the Leo Bodnar rotary switches only work with specific Leo Bodnar control boards.