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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.
Studio render
CAD render of the assembled kit, not a photograph. Download the separate parts below. Physical printing, assembly and fit have 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.
Model kits
Physical print: not tested
A 190 mm display pickup kit with an open bed and four wheels. Ten STL files produce 15 main parts plus two optional fit tests. Printing, assembly, fit and rolling are untested.
Assembled: 190 × 82.2 × 70.7 mm
Physical printing and fit are untested.
TRAIL 190 · Classic pickup kit A stylized single-cab pickup, not a replica of a specific make. Assembled size: 190.0 × 82.2 × 70.7 mm including wheel-pin heads and tyre tread. Ten unique STL files produce 15 model parts plus two optional test pieces. Print chassis, body, window insert, roof and grille once; wheel and wheel pin four times each; headlamp twice. Doors, bonnet and tailgate are fixed; there is no steering. Import in millimetres at 100%. Each individual STL has its base at Z=0 and fits geometrically on a 220 × 220 mm bed. Check printer height, restricted bed areas and brim separately. Parts can be printed in separate colours on a single-extruder printer. The dark window insert is opaque; the lights are decorative, not illuminated. Test first: the pin is nominally 4.0 mm diameter. Sockets marked by one, two or three dots are 4.4 / 4.6 / 4.8 mm diameter, giving 0.2 / 0.3 / 0.4 mm radial clearance. The middle socket corresponds to the wheel bore and chassis socket. Test without force. This coupon does not validate long sockets, body fit or free rolling. Assembly: 1. Remove necessary supports and dry-fit parts without force. 2. Insert the dark window piece from UNDER the body, narrow upper end first. Its broad base must not be forced through the smaller roof opening. 3. Seat the body on the four chassis locating pins. The chassis supports the window insert. 4. Fit four wheels with decorative faces outward. Insert one short pin from outside through each wheel into the chassis. Geometric clearances exist, but real rolling has not been tested. Total nominal axial play is about 2.1 mm; rubbing may occur at the extremes. 5. If needed, secure only the inner pin end in the chassis with suitable glue. Do not glue the pin to the wheel if movement is wanted. Follow the glue manufacturer's instructions. Snap-fit or reliable friction retention is not claimed. 6. Place the roof on the cabin rim, fit the grille and two headlamps. Secure after dry-fitting if needed. Do not lift an unsecured assembly by its roof or mirrors. Inspect bridges and supports around windows, wheel arches, mirrors, body projections and horizontal chassis holes. Long parts may warp. The exploded render is an assembly diagram, not a print layout. Small and thin parts may break; this is not a safety-tested children's toy. Support-free printing and assembly without adjustment are not guaranteed. Digital geometry has been checked. No machine-specific slicing, physical printing, strength or practical fit test has been performed. Print time and filament usage are unknown. Inspect all sliced layers, supports and first-layer adhesion. Render images show the model, not a printed product. STL contains geometry only, without colour. Editable source files are not included. Licence: CC BY-NC 4.0. Attribution: TRAIL 190 by 3D4.us. 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.
Each part is a separate original STL. The assembled CAD render is not a combined printable file. Dimensions are width × depth × height in millimetres; check orientation and fit in your slicer.
Initial catalogue listing of unchanged original printable files and reviewed digital renders. Slicing and physical printing remain untested.
Noncommercial use only.
Original geometry and included print files only. Images and source project files have separate rights. Geometry may be converted to other formats for noncommercial use.
Credit 3D4.us, link the licence and indicate changes.
Purchases and subscriptions are future options, not active features.