Diskussion:Nova 35
Aus FabLab Region Nürnberg
Hardware
- RDC6442G Herstellerseite
- Network aware laser cutter security
- RDCAM Reverse Engineering
- RDworks + Manuals
Protokollanalyse
- Capture mit Wireshark
- Datei > Paketdissektion exportieren > Als JSON
- Packet summary line
- Include column headings
- Packet details:
- As displayed
- Packet Bytes
- Packet summary line
- some more pat foo
rdcam.py
pat magic
Data format
Byte = 1 Bit Message Start Indicator + 7 Bit Payload
Checksum
2 Bytes consisting of 1 byte log2(length of message) and 1 byte sum of scrambled message bytes only least significant byte.
Checksum has to be send before sending message.
Values
| Value | Lenght | Description |
|---|---|---|
| ABSCOORD | 5 Bytes | absolute position in µm |
| SPEED | 5 Bytes | speed in µm/s |
| POWER | 2 Bytes | power in 0,006103516% (100/2^14) |
Commands
| Byte squence | Description | how sure we are |
|---|---|---|
| C6 01 POWER | 1st laser source min power | 99% |
| C6 21 POWER | 2st laser source min power | 99% |
| C6 02 POWER | 1st laser source max power | 99% |
| C6 22 POWER | 2st laser source max power | 99% |
| C9 02 SPEED | movement and/or (not sure) cutting speed | 80% |
| D9 00 02 ABSCOORD | move X | 99% |
| D9 00 03 ABSCOORD | move Y | 50% |
| D9 00 04 ABSCOORD | move Z | 50% |
| D9 00 05 ABSCOORD | move U | 50% |
| CC | ACK from machine | 90% |
| DA.... | get data from machine | 99% |
| A8 ABSCOORD ABSCOORD | Straight cut to absolute X Y; turn laser on with configured speed and power | |
| E7 50 ABSCOORD ABSCOORD | ||
| E7 51 ABSCOORD ABSCOORD | ||
