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Explore electronics projects and experiments at Tricky Circuit.
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A library of ideas
Try another search or clear your filters.
Explore electronics projects and experiments at Tricky Circuit.
Start with your board. Adjust the room around it, then take the geometry to your slicer.
Built-in parametric toolDrag to rotate · + / − to zoom · arrow keys
Open top · no lid, mounting posts or holes
Width × depth × height
Preview and STL use the same validated dimensions.
Build a divided box up to 200 × 200 mm: open top, acrylic sheet grooves or a separate printed sliding lid. Export box and fit-coupon STLs; test fit before printing the full set.
JavaScript is required to edit dimensions, preview the box and generate an STL. The purpose and limits below remain readable without it.
Drag to rotate · + / − to zoom · arrow keys
Open top · uniform cells · dividers reach the full inside height
Length × width × height · nominal geometry
Acrylic: print one guide body and test it with the real sheet cut to the sample dimensions. Printed coupon: two closed pieces, with a 10 mm layout gap; slide the tongue into the guide after printing.
Preview and STL share the same validated shape; STL is rotated to Z-up.
Lid modes leave 0.6 mm above the dividers and 0.3 mm above the lowered front wall. The printed plate has a 0.3 mm lower-edge chamfer. Lip overlap and shelf bearing differ because of this chamfer. There is a rear stop, but no tested lock or seal. Cut an acrylic rectangular blank from the measured sheet; no acrylic lid STL is generated.
Twisted pen cup: studio render
CAD render of the reviewed STL, not a photograph. Physical printing has not been tested.
Drag to rotate · + / − to zoom · arrow keys
Original 3D geometry · no print photographs available
Preview colours are illustrative. STL contains geometry, not these colours. Choose filament colour in your print workflow.
Organizers
Physical print: not tested
A 108 mm pen cup with eighteen twisting flutes, a smooth interior and a broad flat foot for pens, pencils and small dry desk tools. Slicing and physical printing are untested.
STL: 88.9 × 79.94 × 108 mm · width × depth × height
Physical printing and fit are untested.
CORDA · Twisted pen cup One original pen cup with eighteen twisting flutes, a smooth interior and a broad flat foot. For pens, pencils and small dry desk tools. One STL, no assembly. Dimensions: 88.901 × 79.941 × 108 mm. Floor: 3.6 mm. Import CORDA_Pen_Cup_mm.stl in millimetres at 100%, flat foot down and opening up. Use ordinary multi-wall slicing, not spiral vase mode. Check the layer preview, wall continuity, base chamfer, adhesion and required supports before printing. For a 0.4 mm nozzle, 0.20 mm layers, four wall lines and six bottom layers are starting settings to inspect, not a tested profile. Use the printer and filament maker's temperature recommendations. Check the full footprint including any brim against the usable bed. Digital mesh checks found one closed connected body, no open/non-manifold edges, no inconsistent winding, no duplicate or zero-area triangles, and positive volume. Sampled wall measurements are not proof of a global minimum. The preview is a render of the actual exported geometry, not a photograph. STL contains no colour. No physical print or machine-specific slicer validation has been performed. Print time, material use, adhesion, strength, loaded stability and watertightness remain unverified. Heavy or tall contents can tip the cup. Not for food, drinking, flame, hot objects or load-bearing use. Files in this print kit: the original STL, this English guide, a Russian guide, the existing STL licence and SHA256SUMS.txt. No editable Blender files or generator code are included. Printable geometry: CC BY-NC 4.0. Attribution: CORDA by 3D4.us. https://creativecommons.org/licenses/by-nc/4.0/ Editable sources, site software and preview images are outside this STL licence. See LICENSE.txt.
Time and filament use, where available, are slicer estimates for a stated file and profile, not measured print results. Filament used is not the finished part’s mass. Missing values mean there is no verified slicing source.
Reviews and print reports are not available yet. Workshop review is a local demonstration and is not sent to the site.
Slicer estimate; varies with printer and settings.
Catalogue values use the first reviewed slicing source.
Approximate slicer values from the footer of a user-supplied G-code file, manually shared in chat.
Associated by object name, dimensions and preview. The G-code does not contain an STL checksum.
Settings describe the supplied G-code profile, not a verified match to your printer.
This file uses the geometry shown in the 3D viewer. Units are millimetres. Uploading your own files and 3MF support are planned for a later version.
Original STL files. Dimensions are width × depth × height in millimetres; choose orientation and settings in your slicer. Check your printer’s full build volume.
Initial catalogue listing of unchanged original printable files and reviewed digital renders. Slicing and physical printing remain untested.
Noncommercial use only.
Original geometry and STL only. Images and other materials have separate rights.
Credit 3D4.us, link the licence and indicate changes.
Purchases and subscriptions are future options, not active features.