portafilter.svg · 114 lines
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<g font-family="Arial, Helvetica, sans-serif" fill="#263c46">
<text x="60" y="63" font-size="12" letter-spacing="3" fill="#a4663f">COMPONENT STUDY / 01</text>
<text x="60" y="110" font-size="35" font-weight="700" letter-spacing="1">The espresso portafilter</text>
<text x="61" y="140" font-size="15" fill="#61727a">Exploded assembly · removable basket · double-spout outlet</text>
<path d="M60 166H940" stroke="#c9cec9"/>
<text x="940" y="64" text-anchor="end" font-size="11" letter-spacing="2">SCHEMATIC • NOT TO SCALE</text>
</g>
<!-- The vertical axis belongs only to basket, spring, head and outlet. -->
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<!-- removable basket: rolled lip, tapered wall and perforated floor -->
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<!-- split wire spring, removed from the head's internal groove -->
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<!-- head: side lugs, enclosed sump, central threaded outlet -->
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<ellipse cx="550" cy="654" rx="150" ry="45" fill="url(#inside)"/>
<!-- shallow elliptical groove and closed collection floor -->
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<!-- radial side boss: handle screws here, not into the underside -->
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<!-- handle explosion follows a radial, side-mounted axis -->
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<!-- detached double-spout fitting, with a shared threaded inlet -->
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<!-- insertion direction -->
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<!-- leaders -->
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<circle cx="768" cy="287" r="14"/><circle cx="768" cy="490" r="14"/><circle cx="768" cy="739" r="14"/><circle cx="98" cy="917" r="14"/><circle cx="768" cy="996" r="14"/>
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<g fill="white" font-size="12" font-weight="700" text-anchor="middle">
<text x="768" y="291">1</text><text x="768" y="494">2</text><text x="768" y="743">3</text><text x="98" y="921">4</text><text x="768" y="1000">5</text>
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<g fill="#263c46" font-size="14" font-weight="700">
<text x="793" y="281">FILTER BASKET</text><text x="793" y="484">RETAINING SPRING</text><text x="793" y="733">PORTAFILTER BODY</text><text x="80" y="952">HANDLE + FERRULE</text><text x="793" y="990">DOUBLE SPOUT</text>
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<g fill="#61727a" font-size="12.5">
<text x="793" y="303">Removable stainless steel</text><text x="793" y="322">Perforated filter floor</text>
<text x="793" y="506">Split wire basket clip</text><text x="793" y="525">Seats in internal groove</text>
<text x="793" y="755">Chrome-plated brass</text><text x="793" y="774">Closed collection sump</text>
<text x="80" y="974">Walnut grip · threaded side mount</text>
<text x="793" y="1012">Screw-on outlet fitting</text><text x="793" y="1031">Two separate discharge lips</text>
<text x="259" y="594">Group-locking lug</text>
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<text x="60" y="1170" font-size="12" font-weight="700" letter-spacing="2" fill="#a4663f">ASSEMBLY NOTES</text>
<text x="60" y="1199" font-size="14" fill="#526770">The spring seats inside the head; the basket presses past it and rests on the upper rim.</text>
<text x="60" y="1223" font-size="14" fill="#526770">The handle threads into the side boss. The double-spout fitting threads onto the bottom outlet.</text>
<text x="60" y="1268" font-size="11" fill="#82908f" letter-spacing="1">ILLUSTRATIVE GEOMETRY · EXPLODED SPACING · NO BOTTOMLESS OPENING</text>
</g>
</svg>round 1 of 5
Exploded portafilter: Pareto 26.10 Preview
modelunbiased/pareto-26.10-previewtaskexploded-portafilter@v1, checks c1, harness h1date2026-10-07rounds5 of 8 allowed, 12 minutes on the clockcost$0.2351thinkingmediumtokens231,494 in, 58,264 out, of which 0 reasoningtime6 min 49 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 2 · 2r · $0.1517
run 3 · 3r · $0.1385same 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.