cadModel positionOffset axis are not calculated correctly when importing from jlcpcb

[Abse2001]

It should match the footprint (to align with the plated holes X , Y axis) and the board (to not go inside the board Z axis)
repro try to import something from jlcpcb in snippet
snippet.ts

[seveibar]

/bounty $30

[algora-pbc]

💎 $30 bounty • tscircuit

Steps to solve:

1. Start working: Comment /attempt #123 with your implementation plan
2. Submit work: Create a pull request including /claim #123 in the PR body to claim the bounty
3. Receive payment: 100% of the bounty is received 2-5 days post-reward. Make sure you are eligible for payouts

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Attempt	Started (UTC)	Solution	Actions
🟢 @buildingvibes	Feb 10, 2026, 01:33:02 AM	#344	Reward
🟢 @techmannih	May 12, 2025, 03:16:36 AM	#152	Reward
🟢 @LuSrodri	Apr 13, 2026, 06:08:58 PM	#380	Reward
🟢 @mendarb	Mar 20, 2026, 01:34:10 PM	#365	Reward

[coder-pink]

@Abse2001 I'll work on this. Can you assign this to me

[Abse2001]

@coder-pink we actually don't assign issues it's who fix it first get's it.
Good Luck

[algora-pbc]

💡 @techmannih submitted a pull request that claims the bounty. You can visit your bounty board to reward.

[techmannih]

/attempt #123

[buildingvibes]

/attempt #123

I'll fix the cadModel positionOffset axis calculation issue. The problem appears to be that the axes are not being correctly mapped between EasyEDA's coordinate system and Circuit JSON's coordinate system when importing from JLCPCB.

My approach:

1. Analyze the current axis mapping in parseCadOffsetsFromSvgNode
2. Verify the coordinate system transformations during recentering
3. Ensure the CAD model position aligns with footprint (X,Y) and board (Z) correctly
4. Add/update tests to validate the fix
5. Provide a demo video showing the 3D model correctly positioned