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 Which format of a .txl tunnel file should I use for Trimble Survey Controller?

Panagiotis Vranis's profile image
Panagiotis Vranis posted 06-18-2025 09:18

Hello to everyone.

I use TBC 2024.01 version right now.

I export .txl files to Trimble Access for my new total stations like S5' or SX12', that are normally workable,

but I can do the same to Trimble Survey Controller with Tunnels for my older S6 total stations with the CU kit.

I tried the oldest version of .txl (6.0) but it doesn't work (returns a message that file is invalid).

How can I resolve this? Maybe remove from files the designed tunnel meshes and keep only the templates and tunnel shapes?

There must be a solution to use my older and less expensive total stations in the tunnel to do the ''dirty work''.

Thank you.

James McWha's profile image
James McWha posted 06-23-2025 14:42

I was involved in the initial development of the Engineering option (Tunnels) in Survey Controller and later the Tunnels apps in Trimble Access. I'm pretty sure the TXL files used by Survey Controller didn't use surfaces in their tunnel templates (called Tunnel shapes in TBC). Because of this no TXL created or used by the current versions of Trimble Access or or any version of TBC will not be compatible with Survey Controller (which was discontinued about 12 years ago).  This means to continue using Survey Controller you will need to recreate the TXL file in Survey Controller.

The S6 total station is still supported by the latest version of Trimble Access. Instead of continuing to use your TCU, you might be better using your S6 with a controller running Trimble Access.