ModsFinder

Trowel & Error

by echrisco

Trowel & Error gives players a set of block-placing and block-editing tools, rebuilt from the Buildhelper wands, for Forge and NeoForge.

ForgeNeoForgeClient or server, optionalGNU General Public License v3.0 or laterOpen source1.21.1 – 26.3

What it does

Trowel & Error is an unofficial, from-scratch successor to the original wand set. Its tools fill space, replace blocks and copy structures, and a single undo tool reverses the last action, keeping up to 10 actions per world. Support columns can be filled straight down, empty space can be filled with random block variants, and one block type can be swapped for another across a region.

The mod is licensed under the GNU General Public License v3.0 or later and is open source, with its source code published. Either side can run it, and neither needs it. Files are published for Forge and NeoForge, with a 1.0.0 release for 26.3 on NeoForge and a 1.0.0 file for 1.21.1 on Forge. Credit for the original concepts belongs to Torojima, and the mod is not affiliated with that author.

Key features

  1. Fill Down trowel

    Fills the space beneath a placed block with a chosen block, which suits building support columns.

  2. Cube Digger trowel

    Removes a shaped volume in square, circle or diamond form, up to six blocks deep, with an ore-sparing mode.

  3. Copy-paste trowel

    Copies a structure and pastes it with rotation, previewed as a live wireframe before placement.

  4. Undo trowel

    Reverses the most recent action, with a history of 10 actions stored per world.

Compatibility

Latest build for each game version and loader.

26.3Not available1.0.0
26.2Not available1.0.0
26.1.2Not available1.0.0
26.1.1Not available1.0.0
1.21.111.4.1Not available
1.21.11..0.0Not available
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Questions

Which loaders does Trowel & Error support?

The mod is published for Forge and NeoForge. Files for 1.21.1 are listed on Forge, and 26.3 builds are listed on NeoForge.

Does the server need Trowel & Error?

No. Installing it on one side is enough, since either side can run it and neither requires it.

Is Trowel & Error a continuation of Buildhelper?

It is an unofficial, from-scratch successor. It was written without the original code and is not affiliated with Torojima, who created the original concepts.

In the catalog

Trowel & Error is one of 36,990 Utility mods on ModsFinder, and one of 14,575 Utility mods for Forge. 8,071 mods support Minecraft 26.3.

Utility mods36,990Forge modsMods for 26.38,071

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What the author says

An unofficial, from-scratch spiritual successor to Torojima’s wonderful but abandoned Buildhelper wands — rebuilt for Minecraft 1.21.11 (Forge) and reimagined as a full set of builder’s tools. If you ever begged for a Buildhelper update, this is the mod those threads were waiting for. Every wand you loved has been…
echrisco, on the Modrinth page

Official listing

Owner
echrisco
Published
2026-08-26
Updated on Modrinth
2026-10-09
Facts verified
2026-10-15

Tags

UtilityGame mechanics
Open on ModrinthCompare