# T-tracks for AltMill 4x2

**URL:** <https://forum.sienci.com/t/t-tracks-for-altmill-4x2/21768>\
**Category:** 🧰 CNC Setup\
**Created:** [August 30, 2025, 5:02am UTC](https://forum.sienci.com/t/t-tracks-for-altmill-4x2/21768 "2025-08-30T05:02:47Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![conference](https://forum.sienci.com/letter_avatar_proxy/v4/letter/c/f05b48/32.png) [@conference](https://forum.sienci.com/u/conference)\
**Post date:** [August 30, 2025, 5:02am UTC](https://forum.sienci.com/t/t-tracks-for-altmill-4x2/21768/1 "2025-08-30T05:02:47Z")

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I’m a beginner to CNC and shop-work in general, although I’ve been around heavy machinery for the last 20 years working from the software side. I had a couple dumb questions on the wasteboard before buying an altmill.

I was trying to figure out the best way to make a t-track wasteboard for an AltMill 4x2. My current plan is to buy the 34” kit and chop them to size using a band saw. Is there a ready-made solution for this?

In addition, what’s the best method of squaring the t-tracks? There’s probably a good way of bootstrapping the machine to make it so the work for me.

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**Author:** ![Jens](https://forum.sienci.com/letter_avatar_proxy/v4/letter/j/d2c977/32.png) [@Jens](https://forum.sienci.com/u/Jens)\
**Post date:** [August 30, 2025, 5:55am UTC](https://forum.sienci.com/t/t-tracks-for-altmill-4x2/21768/2 "2025-08-30T05:55:33Z")

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If you run your t tracks along the x axis you can just buy 4 ft tracks and use them like that. If you want to run the tracks along the Y axis I would buy 2 ft tracks.

There are two ways that I would square tracks - you can cut your wasteboard slats and use them as spacers for the tracks or you can use the mill to pre-drill the track mounting holes in the base board of the mill. I don’t think tracks need to be installed ‘precisely’. If they are visually square then that is good enough.

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**Author:** ![AkaMrBill](https://forum.sienci.com/letter_avatar_proxy/v4/letter/a/bcef8e/32.png) [@AkaMrBill](https://forum.sienci.com/u/AkaMrBill)\
**Post date:** [November 17, 2025, 5:28pm UTC](https://forum.sienci.com/t/t-tracks-for-altmill-4x2/21768/3 "2025-11-17T17:28:59Z")

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We will be making our own “Tube Fuixture” To allow us to accuratly modify variously sized Aluminum extrusion. This is a common practice in FIRST Robotics. To do this well, we need to know the exact dimentioosn of the T-Tracks. We need that info to create the hole mounting pattern for the fixtur it’s self. So, how wide are the tracks?

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**Author:** ![Jgt1942](https://forum.sienci.com/letter_avatar_proxy/v4/letter/j/f19dbf/32.png) [@Jgt1942](https://forum.sienci.com/u/Jgt1942)\
**Post date:** [April 1, 2026, 9:57pm UTC](https://forum.sienci.com/t/t-tracks-for-altmill-4x2/21768/4 "2026-04-01T21:57:15Z")

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I have the Altmill 4x4 and will be installing the t-track parallel to the Y axis. I plan to install a total of 14 t-tracks, thus the slabs will be between 3-4 inches wide.

I think the first track will be the left most track. In that I will be using the EDGEHUGGER clamps, see [EdgeHugger™ Clamp Kit - Ultra-Low Profile CNC T-Track Workholding Syst – IDC Woodcraft](https://idcwoodcraft.com/products/edgehugger-four-clamp-kit-for-t-track-with-hex-screwdriver-toolquest-brand?_pos=5&_sid=187b58143&_ss=r#:~:text=A%20Gift%20Card-,EDGEHUGGER%E2%84%A2%20CLAMP%20KIT%20-%20ULTRA-LOW%20PROFILE%20CNC%20T-TRACK%20WORKHOLDING%20SYSTEM,-4.7%20based%20on) the right inside of the t-track will be placed on the left-most center position of the spindle.

 ![image](https://forum.sienci.com/uploads/default/original/2X/f/f5522a4509f02104689f74f19642511c561989c7.png)

This will be determined by installing a 15 degree V bit and making a very light vertical cut from Xzero, Yzero to Xzero, Ymax. I’ll follow up with pictures as I move forward.

Note in the following image how close the bolt of the EDGEHUGGER is to the board being clamped down. This is why I wanted the right inside edge of the t-track to be on the left-most cutting edge of my spindle.

 ![image](https://forum.sienci.com/uploads/default/original/2X/6/6508e5ec71e7753d6f28542d312aea3a82ebef36.jpeg)

I’m now in the planning stage. After the first left-most t-track is installed, I will measure the distance between the inside of the left Altmill support to the left inside edge of the first t-track, as in the following image.

 ![image](https://forum.sienci.com/uploads/default/original/2X/c/c621f01f90ca7b3cd673e55d26d5e3e30c814b4f.png)

Shape of the left-most slat. Note your t-track may be different. I ordered my t-track from IDC Woodcraft , see [24", 36", and 48" Universal T-Track for Woodworking & CNC Router Clamp – IDC Woodcraft](https://idcwoodcraft.com/products/24-36-48-universal-t-track-for-woodworking-cnc-router-clamping?variant=51434876731679) I ordered from them because it is designed to fit both 1/4" and 5/16" bolts.

 ![image](https://forum.sienci.com/uploads/default/original/2X/8/832a3069da03f14669008002a6d996c647d31359.png)

I’m open to suggestions. If I have confused you, please let me know, and I will attempt to clarify.

I will add more pictures as I move forward.