Sorter V2 Documentation

⚠ Under heavy construction

As of July 11, 2026, Sorter V2 is not yet in a position to be built.

The documentation that exists is incomplete. Any given page may be accurate, inaccurate, present only as an example, or badly out of date. We do not yet recommend that anyone attempt to build Sorter.

For the most live updates on our progress, join our Discord ↗.

Chute — Chute core

Chute core

How-to guide

The chute assembly. Build one per layer.

Author Spencer

Contributor barthel

Parts needed

Printed parts

  • 1×

Heat inserts

  • 18×

Tools needed

  • Soldering iron or heat-set insert press

The chute is what steers a part into the right bin. Build one per layer, N for an N-layer machine. The bottom interface doesn't add any extra chutes of its own, it's a mounting stage the bottommost chute sits on, bridged to it by a layer connector.

The heat inserts are in the parts list above. The screws that hold the four sub-assemblies on are on their own pages, listed where they are driven.

Fastener icons match the parts list: the silhouette is the head shape, the colour is the thread size. M3 M4 M5 M6

One chute is the chute core plus four things that bolt onto it:

  • Door module, one per chute: the door, the bearing assembly, the servo adapter and the servo in its bracket, built as a unit. See Door module.
  • Layer adapter board, one per chute. See Layer adapter board.
  • Funnel bracket (left) and Funnel bracket (right), one of each. See Funnel brackets.
  • Layer connector A and Layer connector B, one of each. See Layer connectors.

Step 1 Preparation

Press the heat inserts into the chute core before you mount anything else onto it. See installing heat inserts for the technique.

Chute core: 18 × M3, which is every insert on this page: 6 for the door module (4 for its two bearing covers, 2 for the servo bracket arms), 4 for the layer connectors, 4 for the layer adapter board, and 4 for the funnel brackets. This is separate from the bearing assembly's own 10 inserts, which live in the bearing race and holders themselves.

All 18 are the same insert, split 8 + 6 + 4 across three faces. The photos below show one face at a time, with the brass already in.

One long side of a printed chute core, brass heat inserts pressed into all eight pockets on that face
One long side: 8. Two of them sit together beside the cut-out at the top, one more is on its own in the small square pocket in the middle of the face. Photo: BrickCycleAlice.
The other long side of the same chute core, with brass heat inserts in its six pockets and the two round tube openings across the middle of the face
The other long side: 6. The same face mirrored, without the square-pocket insert or the second one beside the cut-out. Photo: BrickCycleAlice.
The rear panel of the chute core seen from above, four brass heat inserts in a square, with the curved channel of the core beside it
Rear face: the last 4, in a square on the panel at the top end. Photo: BrickCycleAlice.

Step 2 Bolt the four sub-assemblies on

Fit them in this order, each on its own page, and each with its own screws in its own parts list:

Every insert you pressed in at step 1 takes a screw from one of those four pages. That is why the inserts are listed here and the screws are not.

The finished result

The chute is complete when all four are on. Repeat for every layer.

A built chute core standing on the bench: the printed core with the door module and its bearing covers on one side, the MG995 servo in its bracket above, and the funnel brackets projecting from the left
A core with the door module, its servo bracket, the funnel brackets and the layer connectors on, the connectors being the small blocks along the top. The layer adapter board is the only one of the four not in this shot. Photo: BrickCycleAlice.

The Chute page contains the instructions for the whole chute, and is where you should return once you're done here.