Bring your CNC router into perfect alignment with the IDC Woodcraft 6" or 12″ CNC Router Tram Bar—the ultimate precision tool for dialing in spindle-to-bed perpendicularity.
Engineered from solid aluminum and featuring precision-ground ¼″ pins, this tram bar lets you measure over a full 12-inch or 24-inch span, giving you amplified visibility of nod (front-to-back tilt) and yaw (side-to-side tilt).
The result: flawless surfacing, cleaner cuts, and true accuracy across your entire machine bed.
Even the best CNC router can produce uneven cuts if the spindle isn’t perfectly perpendicular to the spoilboard.
Improper tramming leads to:
Visible ridges during surfacing
Uneven pocket bottoms and mis-fitting parts
Shortened tool life due to uneven chip load
The IDC Woodcraft Tram Bar exposes these micro-misalignments so you can correct them fast and lock in perfect performance.
A 12″ bar provides a 24″ sweep, amplifying angular error and allowing you to fine-tune your spindle with near-micrometer precision. Also as an option a 6" bar provides a 12" sweep for smaller CNC machines where precision is still key.
Both bars have 1/4" pins for routers with 1/4" collet sizes
Machined from premium 6061-T6 aluminum for unmatched rigidity and lightweight handling—no flex, no false readings.
Precision-ground for accurate contact; one fits directly into your ¼″ collet, the other references your spoilboard or dial indicator.
Fits virtually all CNC routers—Shapeoko, Onefinity, X-Carve, Altmill, PwnCNC spindles, and more.
Quickly detect and correct both front-to-back and side-to-side misalignment, ensuring a perfectly square spindle.
Insert one ¼″ pin into your spindle or router collet.
Lower the opposite pin to touch your spoilboard or dial indicator.
Manually rotate the spindle 180 degrees and compare readings across the 12″ span.
Adjust spindle mount or Z-axis plate until both sides match exactly.
Re-surface the spoilboard to finalize your calibration.
Watch this video to learn about tramming and how to use the IDC Woodcraft 6" or 12" Precision Tramming Bar
| Specification | Detail |
|---|---|
| Bar Length | 6 in (152mm) or 12 in (304 mm) |
| Effective Tramming Span | 12 in (304mm) or 24 in (608 mm) |
| Material | Solid 6061-T6 Aluminum |
| Pins | ¼″ Precision-Ground Steel |
| Weight | Lightweight for easy handling |
| Finish | Anodized corrosion-resistant |
| Compatibility | Standard ¼″ collet CNC routers |
| Accuracy Range | Detects sub-thousandth inch misalignment |
Every IDC Woodcraft tool is crafted for makers who demand perfection.
This tram bar embodies that standard—precise machining, American-tested quality, and a design built for creators who refuse “close enough.”
Pair it with IDC Woodcraft’s Ultra Smooth Surfacing Bit or Excelsior Series Endmills to unlock your CNC’s true potential.
Manufactured in the USA
SKU: TRAM-6, TRAM-12
Item SKU: TRAM-6
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For Vectric, Fusion 360, Carbide Create and Carveo users, get the latest CNC router bit tool database by going to this page
For CNC’s with routers, refer to this PDF download feeds & speeds table
Get feeds and speeds in your shop by scanning this QR code with the IDC Woodcraft App!
