Time-Appliances-Project / Time-Appliances-Project/Time-Card
OCXO Daughter Card V4 - Silkscreen Designator Mismatch for R8 and R33
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Description
There appears to be a mismatch between the silkscreen designators and the actual footprints for R8 and R33 on the OCXO Daughter Card V4 PCB.
According to the BOM, R33 is an 0201 component, and R8 is a 0402 component. However, the silkscreen designators on the PCB are swapped.
PCBWay noticed this discrepancy and reached out to confirm the correct placement, which prompted me to open this issue. Correcting this in a future revision might help streamline the manufacturing process.
BOM: OCXO_DaughterCard_AbraconAOCJYR.xlsx
Gerbers: OCXO_DaughterCardV4_Gerbers.zip
Below is an image provided by PCBWay highlighting the issue as well as a snapshot from Altium viewer showing the mismatch.
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by comparing the R8 and R33 entries in OCXO_DaughterCard_AbraconAOCJYR.xlsx with their placements and silkscreen designators in OCXO_DaughterCardV4_Gerbers.zip. Confirm which designators are swapped and update the PCB revision source accordingly; done means the generated manufacturing files match the BOM and no longer prompt the reported discrepancy.
Written by the indexing model from the issue text.
Assessment
- Domain
- embedded-iot
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100