Note: "Lovely Craft" appears to be a specific server plugin, modpack, or a custom map (similar to "Lovely World" or "CraftLand" style servers). If you are playing on a specific Bedrock/Java server with custom achievements, this guide covers the general engineering principles. If you meant the advancement "Not Quite 'Nine' Eleven" (launching a block with a piston) or "Wax On, Wax Off" (using honeycomb), this guide adapts the piston trap logic for custom server achievements.
Trigger both pistons simultaneously while the character is standing in the gap. lovely craft piston trap achievement guide full
You cannot get the achievement without crafting at least one piston yourself. Here’s the recipe table: Vanilla Minecraft Note: "Lovely Craft" appears to be