grinder.svg · 165 lines
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<style>
.outline{stroke:#263438;stroke-width:2.2;stroke-linejoin:round;stroke-linecap:round}
.fine{stroke:#34464a;stroke-width:1.4;stroke-linejoin:round;stroke-linecap:round;fill:none}
.call{stroke:#8a6a46;stroke-width:1.5;fill:none;stroke-linecap:round;stroke-linejoin:round}
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<!-- paper -->
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<text x="60" y="91" font-family="Arial,sans-serif" font-size="26" font-weight="700" letter-spacing="2.4" fill="#263438">HAND COFFEE GRINDER</text>
<text x="61" y="116" font-family="Arial,sans-serif" font-size="12" letter-spacing="2" fill="#8a6a46">EXPLODED ASSEMBLY · CONICAL BURR MECHANISM</text>
<text x="1140" y="86" text-anchor="end" font-family="Arial,sans-serif" font-size="11" letter-spacing="1.6" fill="#8b8174">FIELD GUIDE / 01</text>
<!-- exploded axis -->
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<!-- soft grounding shadow -->
<ellipse cx="600" cy="846" rx="156" ry="16" fill="#b9b0a1" opacity=".24" filter="url(#shadow)"/>
<!-- crank assembly, raised above lid -->
<!-- central drive peg -->
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<ellipse cx="600" cy="112" rx="9" ry="4" fill="#e7ece7" stroke="#34464a" stroke-width="1.5"/>
<!-- crank arm, oblique side view -->
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<path d="M614 122L739 98" stroke="#fff" stroke-width="2" opacity=".65"/>
<!-- crank hub -->
<ellipse cx="604" cy="127" rx="17" ry="11" fill="url(#darkMetal)" class="outline"/>
<ellipse cx="604" cy="127" rx="7" ry="4" fill="#c6d0ce" stroke="#263438" stroke-width="1.3"/>
<!-- wooden turning knob -->
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<path d="M748 72V98" stroke="#e4b887" stroke-width="1.3" opacity=".7"/>
<!-- 01 lid -->
<ellipse cx="600" cy="168" rx="88" ry="22" fill="url(#darkMetal)" class="outline"/>
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<ellipse cx="600" cy="168" rx="9" ry="3.5" fill="#d9e0db" stroke="#263438" stroke-width="1.2"/>
<path d="M525 172Q600 191 675 172" fill="none" stroke="#f6f7f0" stroke-width="1.2" opacity=".7"/>
<!-- 02 bean hopper, transparent tapered cup -->
<ellipse cx="600" cy="229" rx="77" ry="18" fill="#dce6df" stroke="#34464a" stroke-width="2"/>
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<!-- beans -->
<g fill="#8a5937" stroke="#61432e" stroke-width="1.2">
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<ellipse cx="600" cy="319" rx="54" ry="13" fill="#667578" class="outline"/>
<ellipse cx="600" cy="319" rx="37" ry="8" fill="#e9eee7" stroke="#34464a" stroke-width="1.5"/>
<!-- 03 hopper seat / top collar -->
<ellipse cx="600" cy="352" rx="76" ry="17" fill="url(#metal)" class="outline"/>
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<ellipse cx="600" cy="352" rx="76" ry="17" fill="url(#metal)" class="outline"/>
<ellipse cx="600" cy="352" rx="52" ry="10" fill="#526267" stroke="#263438" stroke-width="1.5"/>
<ellipse cx="600" cy="352" rx="34" ry="6" fill="#d3dcd6" stroke="#34464a" stroke-width="1.2"/>
<!-- central shaft -->
<path d="M594 376H606V492H594Z" fill="url(#metal)" class="outline"/>
<ellipse cx="600" cy="376" rx="6" ry="3" fill="#f3f3e9" stroke="#34464a" stroke-width="1.2"/>
<path d="M597 385V481" stroke="#fff" stroke-width="1.5" opacity=".75"/>
<!-- inner conical burr: fluted cone -->
<ellipse cx="600" cy="423" rx="34" ry="10" fill="url(#metal)" class="outline"/>
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<ellipse cx="600" cy="486" rx="19" ry="8" fill="#536267" stroke="#263438" stroke-width="1.7"/>
<!-- shoulder and drive nut beneath burr -->
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<path d="M593 511H607V534H593Z" fill="url(#metal)" class="outline"/>
<!-- 04 outer burr ring, shown separated around cone -->
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<ellipse cx="600" cy="467" rx="67" ry="17" fill="url(#metal)" class="outline"/>
<ellipse cx="600" cy="467" rx="47" ry="11" fill="#334348" stroke="#263438" stroke-width="1.7"/>
<ellipse cx="600" cy="467" rx="36" ry="8" fill="#f5f1e8" stroke="#34464a" stroke-width="1.2"/>
<!-- inner teeth in outer ring opening -->
<g stroke="#c8d0cb" stroke-width="2">
<path d="M564 466l8 6M570 461l8 9M581 459l5 12M593 458l2 13M607 458l-2 13M619 459l-5 12M630 461l-8 9M636 466l-8 6"/>
</g>
<path d="M539 471V505M549 476V512M660 471V505M650 476V512" stroke="#8c9999" stroke-width="1.5" opacity=".75"/>
<!-- alignment exploded gap -->
<!-- 05 main grinder body -->
<ellipse cx="600" cy="560" rx="102" ry="22" fill="url(#darkMetal)" class="outline"/>
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<ellipse cx="600" cy="560" rx="102" ry="22" fill="url(#metal)" class="outline"/>
<ellipse cx="600" cy="560" rx="77" ry="14" fill="#253337" stroke="#263438" stroke-width="1.8"/>
<ellipse cx="600" cy="560" rx="59" ry="10" fill="#98a5a4" stroke="#263438" stroke-width="1.5"/>
<ellipse cx="600" cy="560" rx="42" ry="7" fill="#253337" stroke="#263438" stroke-width="1.3"/>
<!-- body highlights, knurl texture -->
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<path d="M510 672Q600 695 690 672" fill="none" stroke="#718083" stroke-width="2" opacity=".65"/>
<!-- subtle front maker medallion -->
<ellipse cx="600" cy="624" rx="22" ry="14" fill="#344348" stroke="#8e9b99" stroke-width="1.2"/>
<text x="600" y="628" text-anchor="middle" font-family="Arial,sans-serif" font-size="8" font-weight="700" letter-spacing="1" fill="#e2d8c7">MILL</text>
<!-- 06 adjustment ring, separately exploded -->
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<ellipse cx="600" cy="710" rx="89" ry="19" fill="url(#metal)" class="outline"/>
<ellipse cx="600" cy="710" rx="70" ry="13" fill="#f5f1e8" stroke="#34464a" stroke-width="1.4"/>
<!-- knurled grip marks -->
<g stroke="#d0d8d2" stroke-width="1.7" opacity=".82">
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<!-- 07 grounds cup -->
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<!-- callouts left -->
<g>
<path class="call" d="M332 155H451L505 171"/><circle cx="505" cy="171" r="3" fill="#8a6a46"/>
<circle cx="120" cy="151" r="13" fill="#8a6a46"/><text class="num" x="120" y="155" text-anchor="middle">01</text>
<text class="label" x="145" y="149">DUST LID</text><text class="sub" x="145" y="168">Shaft access / snap fit</text>
<path class="call" d="M332 263H455L523 271"/><circle cx="523" cy="271" r="3" fill="#8a6a46"/>
<circle cx="120" cy="259" r="13" fill="#8a6a46"/><text class="num" x="120" y="263" text-anchor="middle">02</text>
<text class="label" x="145" y="257">BEAN HOPPER</text><text class="sub" x="145" y="276">Clear, tapered feed chamber</text>
<path class="call" d="M332 362H456L524 366"/><circle cx="524" cy="366" r="3" fill="#8a6a46"/>
<circle cx="120" cy="358" r="13" fill="#8a6a46"/><text class="num" x="120" y="362" text-anchor="middle">03</text>
<text class="label" x="145" y="356">HOPPER SEAT</text><text class="sub" x="145" y="375">Threaded upper collar</text>
<path class="call" d="M332 461H453L563 463"/><circle cx="563" cy="463" r="3" fill="#8a6a46"/>
<circle cx="120" cy="457" r="13" fill="#8a6a46"/><text class="num" x="120" y="461" text-anchor="middle">04</text>
<text class="label" x="145" y="455">OUTER BURR</text><text class="sub" x="145" y="474">Stationary conical grind ring</text>
</g>
<!-- callouts right -->
<g>
<path class="call" d="M690 101H824L866 112"/><circle cx="690" cy="101" r="3" fill="#8a6a46"/>
<circle cx="888" cy="112" r="13" fill="#8a6a46"/><text class="num" x="888" y="116" text-anchor="middle">00</text>
<text class="label" x="913" y="110">CRANK & KNOB</text><text class="sub" x="913" y="129">Removable drive arm · turned wood</text>
<path class="call" d="M637 446H817L865 445"/><circle cx="637" cy="446" r="3" fill="#8a6a46"/>
<circle cx="888" cy="445" r="13" fill="#8a6a46"/><text class="num" x="888" y="449" text-anchor="middle">05</text>
<text class="label" x="913" y="443">INNER CONE</text><text class="sub" x="913" y="462">Rotating, fluted conical burr</text>
<path class="call" d="M701 616H822L865 616"/><circle cx="701" cy="616" r="3" fill="#8a6a46"/>
<circle cx="888" cy="616" r="13" fill="#8a6a46"/><text class="num" x="888" y="620" text-anchor="middle">06</text>
<text class="label" x="913" y="614">GRINDER BODY</text><text class="sub" x="913" y="633">Machined alloy outer shell</text>
<path class="call" d="M687 729H823L865 727"/><circle cx="687" cy="729" r="3" fill="#8a6a46"/>
<circle cx="888" cy="727" r="13" fill="#8a6a46"/><text class="num" x="888" y="731" text-anchor="middle">07</text>
<text class="label" x="913" y="725">ADJUSTMENT RING</text><text class="sub" x="913" y="744">Stepped grind-size control</text>
<path class="call" d="M682 811H824L865 810"/><circle cx="682" cy="811" r="3" fill="#8a6a46"/>
<circle cx="888" cy="810" r="13" fill="#8a6a46"/><text class="num" x="888" y="814" text-anchor="middle">08</text>
<text class="label" x="913" y="808">GROUNDS CUP</text><text class="sub" x="913" y="827">Twist-on collection vessel</text>
</g>
<!-- footer -->
<path d="M55 867H1145" stroke="#d9d0c1" stroke-width="1"/>
<text x="60" y="886" font-family="Arial,sans-serif" font-size="10" letter-spacing="1.4" fill="#8b8174">PARTS SHOWN SEPARATED ALONG THE DRIVE AXIS · NOT TO SCALE</text>
<text x="1140" y="886" text-anchor="end" font-family="Arial,sans-serif" font-size="10" letter-spacing="1.4" fill="#8b8174">MECHANICAL STUDY</text>
</svg>Exploded hand grinder: GPT-6 Luna
modelopenai/gpt-6-lunataskexploded-grinder@v1, checks c1, harness h1date2026-10-05rounds1 of 8 allowed, 12 minutes on the clockcost$0.0046thinkingmediumtokens24,338 in, 6,978 out, of which 1,071 reasoningtime1 min 18 sfailedAll eight parts: incomplete, component missing, major, its note said nothing was wrong · Stack order: false, relation transposed, critical, near miss: 1 pair out of order, its note said nothing was wrong
All eight 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.fail
Stack orderdecided by a number, from the filefail
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
One assembly axisdecided 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 · 3r · $0.0065
run 3 · 1r · $0.0038same prompt, other modelsall 12 runs on Exploded hand grinder →
Draw an exploded assembly diagram of a manual coffee grinder, as an SVG. Use a hand grinder with conical burrs rather than flat burrs.Frozen at v1. This model got this and nothing else.
Top to bottom: handle knob, crank, body, outer burr, inner burr, spring if drawn, adjustment dial, catch jar. The drive shaft runs through the body and both burrs, so it is left out of the order, the way the French press leaves out its rod. The adjustment is at the bottom, below the burrs, and the inner cone comes out downwards through the fixed outer ring. Checked against Comandante's FAQ for the C40, Coffeegeek on the Timemore C2, Hario's spare-parts list and a review for the Skerton Pro, and a guide to the Porlex Mini. The Skerton has no spring, so the spring is not required. How it is scored, and this run's files on GitHub.