Part
Display style
Part name
Import STL
Up axis in the STL file

The model is converted at its original size, one block per technic unit. Blocks on the surface get a pin hole pointing along the surface normal, blocks inside the model are solid. Changing a setting converts the same file again.

Edit Block
Type
Orientation
Size
Edges
Catalog
Print Settings
Removes overhangs from bottom of vertical pinholes for better FDM printing.
Print Bed Direction
Measurements
Technic Unit Reset mm
Subdivisions Per Quarter Reset
Edge Margin Reset mm
Interior Diameter Reset mm
Pin Hole Diameter Reset mm
Pin Hole Offset Reset mm
Axle Hole Size Reset mm
Pin Diameter Reset mm
Pin Lip Size Reset mm
Lip Subdivisions Reset
Axle Size Inner Reset mm
Axle Size Outer Reset mm
Attachment Adapter Size Reset mm
Attachment Adapter Diameter Reset mm
Interior End Margin Reset mm
Ball Joint Ball Diameter Reset mm
Ball Joint Base Diameter Reset mm
About

This is a free online CAD tool to create custom LEGO® Technic compatible construction parts for 3D printing.

1 2 3 4 5 6 set type
x y z set orientation
← → move cursor along blue axis
↑ ↓ move cursor along red axis
PgUp PgDown or Shift/Ctrl+↑/↓ move cursor along green axis
Del, BkSp remove block

You can find the original source code for this project on Github.

Modifications by The League of Amazing Programmers. Github

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