| Category | Qty | Description | Notes |
|---|---|---|---|
| Hardware | 1 | 50 mm MGN9 Rail | see cutting guide, Ends deburred, overall length +/- 1 mm |
| Hardware | 1 | MGN-9H Carriage | Medium preload (Z1) is preferred, but regular preload will work. Carriage must be removable from rail. |
| Hardware | 2 | 6 mm x 3 mm magnet | 6 mm diameter, 3 mm tall cylinders. N52 strength preferred, N35 or higher strength required. |
| Hardware | 11 | M3 Heatset Insert | Standard Voron spec 4.7 mm diameter inserts |
| Hardware | 3 | H3 Hex Nut | ISO 4032 |
| Hardware | 8 | M3 Washer | DIN 125, 7mm outer diameter, 0.5 mm thickness |
| Hardware | 2 | M3 x 20 SHCS | Socket head cap screw |
| Hardware | 3 | M3 x 16 SHCS | Socket head cap screw |
| Hardware | 3 | M3 x 12 SHCS | Socket head cap screw |
| Hardware | 1 | M3 x 6 SHCS | Socket head cap screw |
| Hardware | 2 | M3 x 6 FHCS | Flat head cap screw. MUST BE MAGNETIC. No stainless, may be black oxide or zinc coated. |
| Hardware | 2 | M3 x 12 BHCS | Button Head Cap Screw |
| Hardware | 2 | M3 x 8 BHCS | Button Head Cap Screw |
| Hardware | 10 | M3 x 6 BHCS | Button Head Cap Screw |
| Hardware | 2 | M3 x 50 BHCS/SHCS | Button or Socket Head Cap Screw, fully threaded |
Optionally you can replace the M3 x 6 FHCS with additional magnets. See R8_errata.md for details
Wired
| Category | Qty | Description | Notes | Links |
|---|---|---|---|---|
| Electronics | 1 | 220 Ohm resistor | ¼ Watt, +/- 10% tolerance resistor | |
| Electronics | 1 | OPB Wired Sensor | Optek sensor, wired. OPB991 | |
| OPB991P51Z | ||||
| OPB991L51Z | ||||
| OPB991T51Z | ||||
| OPB991T11Z | https://www.digikey.com/short/rrjtmvwm | |||
| OPB991L11Z | https://www.digikey.com/short/cnnhjr5n |
PCB Sensor
| Category | Qty | Description | Notes | Links |
|---|---|---|---|---|
| Electronics | 1 | OptoTap v2 PCB | ||
| Electronics | 1 | OPB PCB Sensor | Optek sensor: OPB666N or OPB971N51 | |
| OPB666N | https://www.digikey.com/short/f2mzw5rm | |||
| OPB971N51 | https://www.digikey.com/short/m9rz73fp |