To use the Overfreight add train mesh feature in Roblox, open your train configuration menu in-game, unlock the customization options for five gems, and paste your uploaded Roblox Mesh ID and Texture ID directly into the designated slots. Players can fine-tune scale, reposition offsets, and adjust carriage lengths without being forced to build specific cargo routes just to match model dimensions.
Requirements and Unlocking the Customization Menu
Developer OneSkyVed introduced full mesh and livery customization to Overfreight in June 2026. While originally tested as a beta feature, customizing a train now costs a flat fee of five gems per locomotive.
You do not need to purchase a Robux game pass to access the custom mesh system. Gems can be earned through two in-game methods:
- Daily Quests: Completing individual daily tasks yields ten gems each, which provides enough currency to unlock customization on two trains. Progress can be tracked through the in-game shop.
- Regional Ads: Watching an optional advertisement grants five gems. Availability depends on your region, and cooldown timers between available ads can range from 15 to 17 hours.
Keep in mind that once you unlock customization on a train, the train cannot be deleted, and spent gems cannot be refunded. Choose the locomotive you intend to modify carefully before spending your currency.
How to Add a Custom Train Mesh Step by Step
Custom meshes require a 3D asset created in software like Blender or Tinkercad and uploaded to Roblox to generate an asset ID. Once you have your asset IDs ready, follow these steps to place the mesh onto your train:
- Select your target train on the tracks and open its train configuration menu.
- Unlock the customization slots by spending five gems.
- Locate the mesh fields on the right side of the interface, which sit opposite the livery templates.
- Paste the numeric Mesh ID into the primary mesh field. You can retrieve this asset ID from your Roblox Creator Hub under Creations, navigating to Development Items and selecting Meshes.
- Paste the Texture ID into the texture field if your 3D model uses an external texture map. If your model does not use a separate texture, leave this field empty.
- Adjust the scale and offset sliders until the model aligns with your underlying bogies and tracks.
- Confirm the changes and exit the menu.
If a mesh or its corresponding textures do not load immediately upon pasting the IDs, paste the configuration string a second time or rejoin the server. Community testing shows that Roblox asset delivery occasionally requires two attempts before rendering properly in-game.
Train Mesh Configuration Parameters
Overfreight provides dedicated input fields and sliders to ensure custom models fit standard tracks and platforms properly:
| Setting Field | Supported Values / Limits | Function in Overfreight |
|---|---|---|
| Unlock Cost | 5 Gems | Permanently enables custom mesh and livery inputs for that specific train |
| Mesh ID | Roblox Asset ID | Loads the 3D model geometry for locomotives, coaches, or freight cars |
| Mesh Texture ID | Roblox Asset ID | Applies surface decals and color maps to the loaded 3D model |
| Mesh Scale | Up to 30, 30, 30 (X, Y, Z) | Controls model dimensions; smaller values (1.5 to 5.0) are recommended for realistic proportions |
| Custom Length | Maximum limit of 30 | Adjusts carriage length manually so models fit without requiring specific cargo route types |
| Stationary Mode | Toggle setting | Freezes the train in place, eliminating engine sounds, movement, and UI pop-up notifications |
| Import / Export Config | Alphanumeric string | Allows players to copy and share full train setups without manually inputting offsets |
The custom length slider solves a common builder issue where players previously had to assign passenger train meshes to freight routes, such as furniture routes, simply to borrow longer rolling stock frames. You can now resize cars directly while maintaining the intended cargo or passenger schedule.
Custom Mesh Limitations and Incompatible Trains
While standard diesel and electric locomotives can be modified freely once unlocked, several in-game rules and restrictions apply to the mesh system:
- Rusty Locomotives: Locomotives awarded from the "A nice gift" badge (earned by finishing electric locomotive research on a fresh career save) cannot be modified. They cannot accept custom liveries, custom meshes, or additional helper locomotives.
- Station Calculations: Changing the visual length of your train via the custom length slider does not alter underlying station platform calculation data. Platforms must still be leveled up to accommodate the operational size of the consist.
- Deletion Lock: Trains that have gem customization applied cannot be deleted or refunded.
Frequently Asked Questions
Can I share my custom mesh setups with other Overfreight players?
Yes. Overfreight includes Configuration Import and Configuration Export tools inside the train menu. Exporting generates a code string containing your mesh IDs, texture IDs, scale adjustments, and length offsets, which other players can paste directly into their unlocked trains.
What should I do if my custom mesh fails to render after pasting the ID?
Roblox asset servers occasionally delay loading new mesh data. Paste the ID or configuration string into the field a second time. If the model remains invisible or appears as a gray box, rejoin the server to force the game client to fetch the asset again.
Can custom meshes be turned into stationary scenery?
Yes. Enabling the Stationary toggle inside the train configuration menu locks the train to its current track position. This removes all train UI elements, stops movement, mutes engine audio, and prevents automated notification spam, making it ideal for building custom train stations and decorative yard displays.
