# Techmannih - Screenshotfrom2026-06-1217-10-57.p...

Channel: #contributor
Source: https://discord.com/channels/1233487248129921135/1514980601583898694
Started: 2026-06-12T13:12:03.192000+00:00
Last activity: 2026-06-24T15:49:42.135000+00:00

## techmannih — 2026-06-12T13:12:02.396000+00:00

[attachment]
Attachment: Screenshot_from_2026-06-12_17-10-57.png — https://community.tscircuit.com/media/1514980601315328051

## techmannih — 2026-06-12T13:13:01.779000+00:00

we have a cad model issue for footprint="kicad:..."

## techmannih — 2026-06-12T13:14:51.606000+00:00

The imported CAD model is much larger than the footprint landed pads.

## techmannih — 2026-06-12T13:15:19.306000+00:00

Are all CAD models showing up as white

## Seve — 2026-06-12T21:10:06.695000+00:00

!!!

## Seve — 2026-06-12T21:10:25.110000+00:00

CC <@398467566588264449> . This seems like a big regression

## Seve — 2026-06-12T21:10:52.071000+00:00

KiCad models may need to be converted to mm- they may be in inches because the resize factor looks like 2.56x or something

## techmannih — 2026-06-14T03:11:36.471000+00:00

in which repo i need to add the repro for this

## techmannih — 2026-06-14T03:16:10.427000+00:00

I have tested it in core, and it works well there.
Attachment: image.png — https://community.tscircuit.com/media/1515555422419812402

## Seve — 2026-06-14T03:19:55.251000+00:00

Hmm not sure this is strange, try eval

## techmannih — 2026-06-14T05:15:32.744000+00:00

yep gets a regression in the eval
Attachment: image.png — https://community.tscircuit.com/media/1515585463266705529

## techmannih — 2026-06-14T05:31:52.403000+00:00

The bug in eval was that the KiCad loader incorrectly applied a (modelUnitToMmScale)  2.54x scale to the STEP CAD model,

## Seve — 2026-06-14T05:32:30.748000+00:00

Nice find lets add a regression test

## techmannih — 2026-06-14T05:32:49.709000+00:00

yea on it

## techmannih — 2026-06-14T16:49:35.094000+00:00

Can you check it https://github.com/tscircuit/eval/pull/2905

## techmannih — 2026-06-18T16:27:06.708000+00:00

<@757706909351411845> <@398467566588264449>  I have fixed the scaling issue, now we have the position offset issue for pinrow/pinheader for kicad cad models
Attachment: image.png — https://community.tscircuit.com/media/1517204019930599534

## Abse — 2026-06-18T17:00:00.243000+00:00

maybe check if the cad model pos relative to the pin1 or the center of the fp

## techmannih — 2026-06-19T10:35:51.502000+00:00

<@398467566588264449> I found the issue in circuit-json-to-gltf: when center_of_component_on_board_surface is used, the CAD model origin is inferred incorrectly.

## techmannih — 2026-06-19T10:37:53.509000+00:00

getMeshOrigin() returns { x: 0, y: 0, z: 0 } directly when no explicit model_origin_position is provided

## techmannih — 2026-06-19T10:54:06.477000+00:00

Can you take a look 
https://github.com/tscircuit/circuit-json-to-gltf/pull/166

## techmannih — 2026-06-19T15:24:55.671000+00:00

<@398467566588264449> can you take a look
https://github.com/tscircuit/circuit-json-to-gltf/pull/167

## Seve — 2026-06-19T18:44:50.930000+00:00

<@398467566588264449>

## Abse — 2026-06-19T18:51:50.332000+00:00

hey u back home ?

## Abse — 2026-06-19T18:52:12.207000+00:00

I think it lg , can u double check when u have free time

## Seve — 2026-06-20T04:51:02.854000+00:00

Im back!!!!

## techmannih — 2026-06-20T05:00:43.557000+00:00

Wow welcome back!!! after 2 weeks 🫡

## techmannih — 2026-06-23T17:03:44.635000+00:00

<@398467566588264449>  the kicad library cad model are white bcoz
the 3d-viewer STEP pipeline was ignoring brep_faces color data from occt-import-js and collapsing the STEP mesh into a single material.

## techmannih — 2026-06-23T17:03:59.562000+00:00

can you take a look 
https://github.com/tscircuit/3d-viewer/pull/943

## techmannih — 2026-06-24T15:25:09.842000+00:00

<@757706909351411845> <@398467566588264449> https://github.com/tscircuit/3d-viewer/pull/945

## Abse — 2026-06-24T15:46:59.156000+00:00

can u give me the repro link in the preview

## techmannih — 2026-06-24T15:47:32.207000+00:00

Ohh sorry

## techmannih — 2026-06-24T15:48:16.129000+00:00

Updated

## Abse — 2026-06-24T15:49:42.135000+00:00

nice work