A holder for standard 3 mm LEDs that can be snapped into a LEGO-compatible brick. The model is developed in FreeCAD 0.21 and is parametric and customizable; most things can be changed simply by editing the parameters in the spreadsheet "Config".

The photos show a customized base designed to match the outline of a circuit board.

LEGO-compatible Brick 3 mm LED holder

BrickLEDadapter 1x1

Wall mount pen holder

penholder-Part.step

Another stupid Hextraction tile that just drops the balls straight down. Don't even touch this tile, it might as well be radioactive.

One-part and two-part designs and FreeCAD master included.

Hextraction Tile: Radioactive

radioactive-tile-Mono.step

A tray to put underneath your Hextraction board, shaped such that sunk balls will roll to the catch areas in the front.

THIS VERSION IS FOR THE "FANCY" VERSION OF THE BOARD. The basic version of the board has its feet in a different position, and I don't yet have the proper coordinates for those. IF YOU HAVE A BASIC BOARD, SOME SPARE FILAMENT, AND A WILLINGNESS TO HELP, PLEASE CONTACT ME. It should not be too onerous to get it right.

Screw holes below the support pads allow the back supports to optionally be screwed in place; however, this is usually not necessary as the support pads are shaped to hold the supports in place using the standard leveling screws and gravity only.

Designed in FreeCAD 0.21; the FreeCAD master file is included. Most dimensions are parameterized in the sketches "XYGeometry" and "YZGeometry".

The standard version is 300×280 mm; the smaller version is 280×270 mm. The only difference is in the geometry parameters.

Hextraction: Sloping underboard tray

A tray to put underneath your Hextraction board, shaped such that sunk balls will roll to the catch areas in the front.

largetray-Tray-smaller.step

hextraction-large-tray-Tray.step

A template file with a bunch of useful sketches for creating Hextraction tiles in FreeCAD.

Dimensions and options such as allowed orientations are parameterized in a spreadsheet (called "Params").

Created with FreeCAD 0.20.2, also tested with FreeCAD 0.21.

Hextraction: FreeCAD Tile Template

A template file with a bunch of useful sketches for creating Hextraction files in FreeCAD.

My "Angry Crab" tile for Hextraction.

A ball going down either side channel comes out the same side. A ball going down the middle channel gets trapped until another ball goes down either of the side channels, at which point it gets ejected on the opposite side (resulting in one ball on each side.)

The model was created in FreeCAD; the FreeCAD master file and a STEP file are included.

Hextraction Tile: Angry Crab

"Angry Crab" tile for Hextraction.

Balls going down either side channel comes out the same side. Balls going down the middle channel get trapped until a ball goes down either of the side channels, at which point it gets ejected on the opposite side (resulting in one ball on each side.)

crab-tile-Part.stl

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