tscircuit•5d ago

Anas - @Seve Can the laser handle (make) two l...

@Seve Can the laser handle (make) two layers PCB, Do we need two separated layers? like Add a layer option to convertCircuitJsonToLbrn() to specify which layer to process (e.g., "top", "bottom",)

20 Replies

AnasOP•5d ago

we currently only support the a single layer. Current problems: - Multi-layer traces: The keyboard circuit JSON contains traces on both "top" and "bottom" layers - Incorrect geometry combination: The current code unions all trace geometries for each net regardless of layer, but traces on different layers don't electrically connect - Boolean operation failure: When polygons from different layers are combined, they can create self-intersecting or invalid geometry that the boolean operations can't handle

AnasOP•5d ago

Seve•5d ago

Yea we need to have each layer cur on a different layer If you adjust the colors, try to match corcuit to svg So yea generate a cut setting for each layer, i will cut each layer one at a time then flip the pcb etc

shibo•5d ago

I initially thought you'd create one file for each layer, but you're saying different cut settings can be excuted separately on the same file?

AnasOP•5d ago

same file but cut process I think

Seve•5d ago

Yea i think so, we can also make it so we only include specific layers with a parameter. I think all options are good for different scrnarios Eg includeLayers: [“top”]

shibo•5d ago

You think so? Is this still new to you too?

Seve•5d ago

i can never cut inner layers I can definitely remove or disable layers. I can’t remember if its super involved or not for end users to not mess it up But easiest to throw everything in same file initially

shibo•5d ago

What I meant is: are you following a convention or are you experimenting with a new way of creating boards? Because I couldn't find references to some of the stuff you're doing online

Seve•5d ago

Laser abalation for PCBs is basically a brand new fabrication method, UV lasers just started becoming affordable I want tscircuit to be the dominant way to build PCBs/companion program since kicad doesnt support this

shibo•5d ago

Cutting edge technology, literally Cool, keep us updated every step of the way

Seve•5d ago

Just like panelization, we have to do something kicad cant do to win over new users Yes ofc Yea unfortunately transpilation took all day yesterday and Monday but should be in the lab today and will try to record

AnasOP•5d ago

@Seve is this what we need?

export const convertCircuitJsonToLbrn = (
  circuitJson: CircuitJson,
  options: {
    includeSilkscreen?: boolean
    origin?: { x: number; y: number }
    margin?: number
    includeCopper?: boolean
    includeSoldermask?: boolean
    soldermaskMargin?: number
    layer?: "top" | "bottom" | "both"
  } = {},

export const convertCircuitJsonToLbrn = (
  circuitJson: CircuitJson,
  options: {
    includeSilkscreen?: boolean
    origin?: { x: number; y: number }
    margin?: number
    includeCopper?: boolean
    includeSoldermask?: boolean
    soldermaskMargin?: number
    layer?: "top" | "bottom" | "both"
  } = {},

Seve•5d ago

use includedLayers, if not provided use all layers The layer thing you have above is an antipattern where youre mixing control logic enum with a data enum Actually use includeLayers as per convention What is “margin”?

AnasOP•5d ago

soldermask margin

Seve•5d ago

That’s another antipattern when one var is prefixed but another isnt You have two margins

AnasOP•5d ago

ops

AnasOP•5d ago

Not sure what do u mean when u add this, but I think never been used. I will delete it

Seve•5d ago

I made a mistake We also need to support rastering trace outlines at some point- it will improve the separation- eg i want a thicker trace outline If you want to see a ton of people experimenting with this- find the LumenPnP discord and go to the ViaGrid channel- we’re all comparing laser results It seems the best ppl are rasterizing traces- our laser is a lot more precise i think than most peoples but it has a small spot size so our lines are super thin by default

AnasOP•5d ago

https://github.com/tscircuit/lbrnts/pull/12 updated colors to match circuit to svg

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Anas - @Seve Can the laser handle (make) two l...

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