Project:Sanguinololu Thermocouple: Difference between revisions
From London Hackspace Wiki
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Revision as of 19:21, 7 November 2012
| [[|Sanguinololu Thermocouple]] | |
|---|---|
| Created | 03/11/2012 |
| Version | 1 |
| Members | Pinski1 |
| Project Status | Awaiting PCBs |
| QR code | |
Introduction
I wanted to add a thermocouple to my 3D printer's hot end. Ideally it would improve the quality of my printed objects as it would provide more accurate temperature readings with greater immunity from electronic noise generated by the stepper motors.
Features
The PCB I have designed has the following features:
- Fits onto the expansion headers already present on the Sanguinololu
- Adds a MAX31855 thermocouple to digital convertor chip
- Enables temperature readings between -200°C to +1350°C ±2°C
- Has a resolution of 0.25°C
- Can sample at 10Hz
Files
Schematics
Eagle 5.11 file:
PCB Layout
Eagle 5.11 file:
BoM
| Qty | Value | Ident | Description |
|---|---|---|---|
| 1 | MAX31855K | IC3 | SOIC8 Thermocouple-to-Digital chip |
| 1 | TXB0104D | IC1 | SOIC14 Bi-Directional level translator chip |
| 1 | TPS73033DBVT | IC2 | Could be any SOT23-5 +3V3 voltage regulator |
| 2 | 10nF | C3, C4 | Ceramic 0805 decoupling capacitors |
| 2 | 2.2uF | C1, C2 | Ceramic 1206 decoupling capacitors |
| 1 | SV1 | 2x5 way, straight, 2.54mm, female header | |
| 1 | X1 | 2way, screw terminal, 5.08mm |
Pictures
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|---|---|---|
| The Eagle CAD layout. | ||
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The PCB renders of OSH Park |
| To come | To come | The delivered PCBs. |
How to Build
Licence
This design is licensed under Creative Commons BY-NC-SA
This design is modified from Sanguinololu SD
