
Square Tube Connector 3D Models to Print
This collection gathers printable connectors that join square tubes into frames, corners and junctions. Most entries are built around a fixed tube size and a fixed angle, so the geometry of the joint decides what you can assemble. If you are planning a build with square tubing, these STL files cover the usual starting points. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.
Le texte de cette collection est rédigé en anglais ; la recherche, elle, fonctionne dans toutes les langues.
Comment cette collection est composée
Polyzon compose cette collection à partir des résultats de recherche des plateformes connectées. Les doublons et les modèles sans aperçu sont retirés, les correspondances faibles sont placées à la fin, et le reste suit l’ordre de la recherche. Les modèles appartiennent à leurs auteurs : consultez les conditions sur la page de chaque modèle.
Règles de sélection : la rédaction de Polyzon · Texte mis à jour le 12/10/2026
Par où commencer
Tous les modèles de cette collection

12mm Aluminium (Aluminum) Square Tube Connector

Square-Tube-Connector

3-axis square tube connector 30x30mm

4 Way Square Tube Connector – ABS

Square Tube Connector 15x15

3-Way & 2-Way Square Tube Connector for Alu Tubes

Custom Tube & Profile Connector – Elbow, Tee, Cross and Corner STL

Universal 3/4" & 19x19mm Square Tube Connector

Square tube connector

Square tube connectors

Square tube corner angle connector 10x10x1mm

Connector Square Tube 20mm

3/4 inch square tube overhead (butterfly) frame connectors

Square tube 3 Way connector 20mm

10x10mm square tubes connector

Connector for 20mm square tube

20 * 20 square tube right-angle connectors

Adjustable angle connector for aluminum square tube size 20x20mm (wall thickness 2mm)

Square Tube Corner Connector

Printable RC Track Connectors for 44MM ID / 50MM OD Square Tube

Foldable 20,25,30mm Aluminum Profile Connectors

Corner connectors for square tubes

3 Corner Edge Connector for Square tubes

15mm Square Tube Corner Connector - No Supports

Strong cross connector for 10/20 mm square tubes

1" x 1" x 1/16" Square Tubing Connector

20x20 1.5mm Square tube corner connector

corner connector for 20x20x1.5mm 60/80 mm free length aluminum square tube

Strong square tube corner connector

Edge Connector for square tubes

2 way square tube connector

15mm Square Tube Corner Connector – No Supports, Easy Print
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Трехногий соединительный угол 90° для пьедесталов из квадратной трубы

PTFE tube connector and square thread for Spool hanger under shelf with

corner connector for 20x20x1.5mm aluminum square tube

12mm Tube Frame Connector Kit

square tube 20-20 connectors

1/2 Inch Square Tube - L Connector

1/2 Inch Square Tube - T Connector Clip

10mm Square Tube Compression Connector

PVC tube connector

Round to Square Tube Folding Connector

Connector square tube 20x20x1.5

square tube - connect-1-20x20mm 90°
«Square Tube Connector 3D Models to Print»
The models fall into a few families. Corner and right-angle pieces close a frame at 90 degrees, while three-way and four-way junctions split a run of tube in several directions. Adjustable-angle connectors let you set the angle yourself before tightening, and a number of files are drawn for one specific tube size, from small 10 mm profiles up to 30 mm and beyond.
Before printing, read the model page for the tube size and wall thickness the author used, since a connector drawn for one profile will not close around another. Check whether the joint relies on friction, screws or a clamp, how many separate parts need to be printed, and whether supports are needed for the internal sockets. The material and print settings listed by the author, along with photos of real prints, tell you more than the render does.
If the results look narrow, try other names for the same part: profile connector, corner bracket, tube joint, tee, cross, elbow or gusset. Related searches such as square tube frame, extrusion bracket or tube clamp often surface files that use different wording. Adding the tube size in millimetres to the query is usually the quickest way to narrow the list.
Questions fréquentes
How do I know which tube size a connector fits?
Do these connectors need screws or glue?
Can I scale a connector to fit a different tube?
What should I check in the photos of printed parts?
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