Difference between revisions of "PCB-assembly"
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# all the grounding - ESD connections, Pick and Place and user | # all the grounding - ESD connections, Pick and Place and user | ||
# SMD feeders: https://www.thingiverse.com/thing:2414955/files | # SMD feeders: https://www.thingiverse.com/thing:2414955/files | ||
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| + | # Check page 41 for YZ block, https://www.eurocircuits.com/wp-content/uploads/ec2015/ecImage/document/v20_eC-009-999-R00ManualPnPUserManual_EN_en.pdf | ||
| + | # The same mechanism exists at XY block | ||
== Reflow Oven == | == Reflow Oven == | ||
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Other Tools: | Other Tools: | ||
# Use M4 nuts to place PCB in to oven base | # Use M4 nuts to place PCB in to oven base | ||
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# Calibration process: https://github.com/UnifiedEngineering/T-962-improvements/wiki/calibration | # Calibration process: https://github.com/UnifiedEngineering/T-962-improvements/wiki/calibration | ||
Revision as of 16:53, 12 September 2023
HSGR PCB assembly tools
Stencil Printer
Our stencil printer is based on https://dengler-mechatronik.de/?p=560. In the the above photo you check the modifications:
Other Tools:
- squeegee, use it softly and slowly as is referred in to solder paste datasheet
- small plastic spatula or stick, to stir the solder paste
- isopropyl alcohol and paper towel to clean everything
- M3 allen key wrench, to install the stencil
- Microscope Camera with USB interface, use it with VLC in order to check the alignment of PCB and stencil
Manual Pick and Place
Our Pick and Place is https://www.eurocircuits.com/blog/ec-placer/ with 2 cameras and a in-house software: https://gitlab.com/hsgr/lab/ec-placer-camera-viewer. The set-up needs 2 monitors:
- 1st for Pick and Place cameras
- 2nd for interactive BOM, https://github.com/openscopeproject/InteractiveHtmlBom
Other Tools:
- PCB vice: https://gitlab.com/thanos.husk/tiny-vice
- all the grounding - ESD connections, Pick and Place and user
- SMD feeders: https://www.thingiverse.com/thing:2414955/files
Maintenance:
- Check page 41 for YZ block, https://www.eurocircuits.com/wp-content/uploads/ec2015/ecImage/document/v20_eC-009-999-R00ManualPnPUserManual_EN_en.pdf
- The same mechanism exists at XY block
Reflow Oven
The model of reflow oven is puhui T-962. There are some improvements base on https://github.com/UnifiedEngineering/T-962-improvements/wiki:
- Flashing the LPC21xx controller
- Dallas 18B20 for cold junction mod
- Kapton tape was added for better thermal inslulation
- Improve grounding
- Use Custom 2 profile
Other Tools:
- Use M4 nuts to place PCB in to oven base
Maintenance:
- Calibration process: https://github.com/UnifiedEngineering/T-962-improvements/wiki/calibration
Ultrasonic Cleaner
It is a 2.0L ultrasonic cleaner. The model is JP-010S. For flight models (space) it is not recommended to clean it with this. Use isopropyl alcohol to clean PCBs.
