HackerBot electronics
Contents
Step 34: Power supply
| qty | part name | description/notes |
| 1 | Switching power supply DC 24v - 12.5A | TracoPower TXL 350-24S or Ebay junk |
| 2 | Power supply clamps | File:Power supply clamp.pdf |
| 4 | M3x10 screws, 2x M3 nuts, 2x M3 washer | |
| 1 | Power inlet | Bulgin BVA01/Z0000/11 (RS: 352-1825) |
| 2 | Power inlet fuse | 230V use a 2A fuse (20mm type) - 110V use a 4A fuse. |
| 1 | Power cable | 25cm 3x1 power cable |
| 1 | Power cable | 10cm 3x1 power cable |
| 1 | Back panel PMMA | |
| 7 | Fast-on connector | fully insulated type (you also need a crimper) (ex: RS 624-1178) |
| 3 | fork type crimp connectors | optional |
Wiring:
assemble the back panel with inlet:
cable all together:
110V / 230V is lethal. Please do not do wirings if you are not a tech and are you very sure what are you doing.
Bulgin inlet is very dangerous because one power joint is not isolated!
PLEASE USE HOT GLUE TO INSULATE ALL THE INLET BACK
DO EARTH CONNECTION TO CHASSIS and DOUBLE CHECK GLUE
YOU MUST PLACE A VERY DEATH DANGER ADHESIVE!
Step 35: Controller
Tested controllers are:
- ARDUINO MEGA 2560 + RAMPS 1.4 + Pololu A4988 / TI DRV8825
- RUMBA (rep rap discount electronics) with 3 output for extruders and some extras
RAMPS
ARDUINO MEGA 2560 + RAMPS 1.4 + Pololu A4988 / TI DRV8825
Printed box for Arduino Mega + RAMPS:
- INSERT
RUMBA
Printed box for Arduino RUMBA:
- INSERT
Step 36: Motor cabling
| qty | part name | description/notes |
| 2 | X and Y motor cable | 4x0.25 mm2 , length: 1m (RS: 491-8983) |
| 1 | Z motor cable | 4x0.25 mm2 , length: 40cm (RS: 491-8983) |
| 2 | Panel connectors | check photo |
| * | Shrink tube |
Wiring scheme:
| MOTOR | PANEL CONNECTOR | CABLE (LiYY 4x0.25) | A4988/DVR8825 |
| RED | » 1 « | Yellow | 1A |
| BLU | 2 | White | 1B |
| GREEN | 3 | Green | 2A |
| BLACK | 4 | Brown | 2B |
Fix the panel connector (motors):
Wire the Z motor:
Step 37: Extruder cabling
| qty | part name | description/notes |
| 2 | silicon cable 1 mm2 | length: 1m (red & black) |
| 1 | 2x0.14 mm2 LiYY cable | length: 80cm |
| 1 | Panel connectors | check photo |
| * | Shrink tube | |
| 1 | FAN CABLE 2x0.14 mm2 | length: 1.5m |
NOTICE: ONE EXTRUDER PROCEDURE. (repeat x times if you need multiple extruders)
Wiring scheme:
| PANEL CONNECTOR | CABLE | note |
| 1 « | SILICON RED | Extruder power + |
| 2 « | SILICON BLACK | Extruder power ground |
| 3 « | LiYY BROWN | NTC |
| 4 « | LiYY WHITE | NTC |
In the middle hole put the FAN CABLE:
Step 38: Endstop
| qty | part name | description/notes |
| 1 | X end stop holder | File:X Endstop holder.stl |
| 1 | Y end stop holder | File:Y Endstop holder.stl |
| 2 | X/Y end stop | 2x0.14 LiYY cable (RS 445-1395) length 90 cm |
| 1 | Z end stop | 2x0.14 LiYY cable (RS 445-1395) length 60 cm |
| 2 | 2x0.14 LiYY cable | length 90 cm (RS 445-1395) |
| 1 | 2x0.14 LiYY cable | length 60 cm (RS 445-1395) |
| 3 | 2x1 dupont connector |
Use support and 2x M2.5x15 screw set to fix it:
Using the support fix it to the structure:
Using 2x M2x12 screw & nut tighten the endstop to the support:
Step 39: LCD Controller
| qty | part name | description/notes |
| 1 | RepRapDiscount XXL LCD | |
| 1 | XXL LCD case | File:Bottom Case XXL.stl |
| 1 | XXL LCD case cover | File:Top Case XXL.stl |
| 1 | XXL LCD knob | File:Controller knob 2.stl |
| 1 | XXL LCD kill button | File:Kill Button XXL.stl |
| 2 | Velcro strips | 50x20 mm |
