portafilter.svg · 136 lines
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<style>
.edge{stroke:#29474b;stroke-width:2;stroke-linejoin:round;stroke-linecap:round}
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.label{font-family:Arial,Helvetica,sans-serif;fill:#203d42}
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<path d="M48 119H1152" stroke="#c9d2c8"/>
<text x="48" y="48" class="num" font-size="12" letter-spacing="3">COMPONENT STUDY / 01</text>
<text x="48" y="87" class="label" font-size="35" font-weight="bold" letter-spacing="-1">Espresso portafilter</text>
<text x="1152" y="59" text-anchor="end" class="sub">DOUBLE-SPOUT ASSEMBLY</text>
<text x="1152" y="83" text-anchor="end" class="sub">Exploded view · basket removed</text>
<!-- Common vertical assembly axis -->
<path d="M480 145V954" stroke="#84aaa3" stroke-width="1.3" stroke-dasharray="7 7"/>
<!-- 01: Removable filter basket, drawn with an open lip and perforated floor -->
<g class="edge">
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<ellipse cx="480" cy="202" rx="141" ry="46" fill="url(#rim)"/>
<ellipse cx="480" cy="201" rx="126" ry="35" fill="url(#inside)"/>
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<ellipse cx="480" cy="219" rx="104" ry="23" fill="#c7d5ce" stroke="#8a9f9d" stroke-width="1"/>
<ellipse cx="480" cy="219" rx="99" ry="20" fill="url(#holes)" stroke="none"/>
<path d="M346 197C371 150 586 150 614 197" fill="none" stroke="#ffffff" stroke-width="2.4"/>
</g>
<!-- 02: Split retaining spring -->
<ellipse cx="480" cy="415" rx="128" ry="35" fill="none" stroke="#29474b" stroke-width="6" stroke-dasharray="510 55" transform="rotate(-8 480 415)"/>
<ellipse cx="480" cy="413" rx="128" ry="35" fill="none" stroke="#d2dfd8" stroke-width="2" stroke-dasharray="510 55" transform="rotate(-8 480 413)"/>
<!-- 03: Closed portafilter body and bayonet ears -->
<g class="edge">
<!-- Rear locking ear -->
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<path d="M546 517L587 492L624 505L582 532Z" fill="#dae4dd"/>
<!-- Bowl is solid underneath; coffee drains into the threaded outlet -->
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<path d="M355 593C361 644 404 661 447 666" fill="none" stroke="#f6faf3" stroke-width="4"/>
<path d="M348 628C395 674 565 674 613 628" fill="none" stroke="#7e9797" stroke-width="1.3"/>
<!-- Left locking ear -->
<path d="M332 546L292 556L290 575L338 589L373 576L374 558Z" fill="url(#steel)"/>
<path d="M332 546L292 556L338 571L374 558Z" fill="#dce6df"/>
<!-- Mounting socket / neck -->
<path d="M611 551L665 527L690 536L699 558L643 586L620 578Z" fill="url(#steel)"/>
<path d="M657 530L674 522L696 535L704 554L687 564L670 549Z" fill="#91a9a8"/>
<!-- Rim and cavity -->
<ellipse cx="480" cy="548" rx="151" ry="53" fill="url(#rim)"/>
<ellipse cx="480" cy="548" rx="128" ry="37" fill="url(#inside)"/>
<ellipse cx="480" cy="559" rx="102" ry="23" fill="#879f9f" stroke="#71898a" stroke-width="1"/>
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<path d="M339 537C375 486 582 485 621 537" fill="none" stroke="#ffffff" stroke-width="2.5"/>
<!-- Spring seat inside the mouth -->
<path d="M357 542C378 507 581 507 603 542" fill="none" stroke="#4b6c6e" stroke-width="2"/>
<!-- Threaded outlet underneath the closed bowl -->
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<path d="M455 692Q480 702 505 692M455 699Q480 709 505 699M455 706Q480 716 505 706" fill="none" stroke="#5f7e80" stroke-width="1.5"/>
<ellipse cx="480" cy="714" rx="25" ry="8" fill="#9fb4b1"/>
</g>
<!-- Handle, kept attached to the body -->
<g class="edge">
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<path d="M701 524C703 539 710 550 722 557M711 518C713 533 720 544 732 551" fill="none" stroke="#6d8787" stroke-width="1.3"/>
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</g>
<!-- 04: Removable double-spout casting -->
<g class="edge">
<!-- Female socket receives body outlet -->
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<!-- Broad Y distributor, with two downward-facing outlets -->
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</g>
<!-- Callouts -->
<g>
<text x="48" y="222" class="num">01</text>
<text x="83" y="222" class="label" font-size="19" font-weight="bold">Filter basket</text>
<text x="83" y="245" class="sub">Removable · perforated base</text>
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<text x="48" y="392" class="num">02</text>
<text x="83" y="392" class="label" font-size="19" font-weight="bold">Retaining spring</text>
<text x="83" y="415" class="sub">Seats in the body's inner groove</text>
<path d="M83 432H285L354 414" class="leader"/><circle cx="354" cy="414" r="3" fill="#087e78"/>
<text x="48" y="624" class="num">03</text>
<text x="83" y="624" class="label" font-size="19" font-weight="bold">Portafilter body</text>
<text x="83" y="647" class="sub">Closed bowl · bayonet locking ears</text>
<path d="M83 666H282L345 622" class="leader"/><circle cx="345" cy="622" r="3" fill="#087e78"/>
<text x="48" y="822" class="num">04</text>
<text x="83" y="822" class="label" font-size="19" font-weight="bold">Double spout</text>
<text x="83" y="845" class="sub">Thread-on · two coffee outlets</text>
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<path d="M867 506L908 602H1065" class="leader"/><circle cx="867" cy="506" r="3" fill="#087e78"/>
<text x="918" y="630" class="label" font-size="19" font-weight="bold">Handle</text>
<text x="918" y="653" class="sub">Shown attached</text>
<path d="M506 703H719" class="leader"/><circle cx="506" cy="703" r="3" fill="#087e78"/>
<text x="735" y="708" class="sub">Threaded outlet</text>
<text x="735" y="730" class="sub">Feeds the removable spout below</text>
</g>
<path d="M48 978H1152" stroke="#c9d2c8"/>
<text x="48" y="1007" class="sub" font-size="12">ASSEMBLY ORDER 04 → 03 → 02 → 01</text>
<text x="1152" y="1007" text-anchor="end" class="sub" font-size="12">Schematic · not to scale</text>
</svg>round 1 of 2
Exploded portafilter: GPT-6.1 Sol
modelopenai/gpt-6.1-soltaskexploded-portafilter@v1, checks c1, harness h1date2026-10-07rounds2 of 8 allowed, 12 minutes on the clockcost$0.0817thinkingmediumtokens53,137 in, 5,742 out, of which 1,085 reasoningtime2 min 4 s
All five partsdecided by looking · Pass if every listed part is drawn as a separate shape and each has a label naming it. A part only named in a label or a comment, with nothing drawn, fails it. The label must say what the part is, in any words: a name that only says where it sits ("top plate") or what it is made of, or a mention in another part's caption, does not count.pass
Stack orderdecided by a number, from the filepass
Parts fitdecided by looking · Pass if each listed pair of mating parts looks as if it would go together as stated: the right angle, nested inside, or sitting on top. One pair that plainly could not fails it.pass
Two assembly axesdecided by looking · Pass if one line runs through the middle of every part on each listed axis, and every leader line leaves from the same side. One part pushed off its axis fails it.pass
Labels matchdecided by looking · Pass if following each leader line from its label ends on the part that label names. One label pointing at the wrong part, or at nothing, fails it.pass
There is no post about this one, since only some results need one, so the picture, the source and the scoring are here instead.
run 1 · 1r · $0.0641
run 2 · 3r · $0.0930same prompt, other modelsall 22 runs on Exploded portafilter →
Draw an exploded assembly diagram of an espresso machine portafilter, as an SVG. Use a double-spout portafilter with a removable basket rather than a bottomless one.Frozen at v1. This model got this and nothing else.
On a vertical axis, top to bottom: filter basket, retaining spring, portafilter body, double spout. The handle is on a horizontal axis off the body, so this is the one member with two axes. Checked against parts sellers, since no maker's exploded diagram could be fetched: Espresso Parts and Zirkus Coffee on the spring that clips into a groove inside the body and grips the basket rim, Espresso Parts on the spout that screws onto the bottom of the body, and Nepo Coffee on handles that screw onto a stud on its side. How it is scored, and this run's files on GitHub.