Bill of material¶
Laser cut box¶
3 plywood sheets 5mm thick , 600 mm x 400mm size.
https://github.com/BrailleRapSP/BrailleRapSP/tree/master/lasercut
Printed parts¶
All parts are printed in ABS, 50% infill, 3 perimeters. We used eSun ABS Natural filament.
Mechanical parts¶
| Qty | Type |
|---|---|
| 4 | 8mm linear shaft 330 mm length |
| 1 | 8mm linear shaft 300 mm length |
| 1 | 8mm linear shaft 365 mm length |
| 1 | 8mm linear shaft 120 mm length |
| 6 | RJ4JP-01-08 Polimer linear bearing |
| 3 | GT2 pulley 20 teeth bore 8mm |
| 2 | GT2 idler pulley 20 teeth bore 3mm (with ball bearing) |
| 4 | KP08 linear shaft 8mm horizontal pillow |
| 2 | KFL08 linear shaft 8mm vertical pillow |
| 1 | Flex shaft coupler 5mm/8mm |
| 2 | Nema 17 40 N/cm with wire |
| 1 | Close timing belt 160 mm |
| 2 | Open timing belt 630 mm length |
| 1 | MKS GEN 1.4 or Ramps 1.4 compatible electronic board |
| 2 | DRV8825 stepper stick with radiateur |
| x | BTR M3 5mm |
| x | BTR M3 10mm |
| x | M3 nuts |
| x | M3 nylstop nuts |
| x | M3 washer |
| x | BTR M4 10 |
| 4 | BTR M4 50mm partially threaded. |
| 3 | O-ring 15.1 mm inside diameter and 20.5 mm outside diameter (15.1 x 20.5 x 2.7) |
| 1 | Sand paper Sheet 180 (car painting sand paper) |
| 1 | Sand paper sheet N° 4 |
| … |
Electronical parts¶
| Qty | Type |
|---|---|
| 1 | Electro-magnet tau-826 12V 2A |
| 1 | Veroboard or stripboard |
| 1 | 1N4004 flyback diode or equivalent (12V 2A) |
| 1 | resistor 1K ohms |
| 1 | red del |
| 1 | Embase USB |
| 1 | Embase 230V with switch |
| 1 | 12v power supply 10A |