# Surfacing with T track issue

**URL:** <https://forum.onefinitycnc.com/t/surfacing-with-t-track-issue/23519>\
**Category:** Original/PRO Series (Buildbotics) (Gen 1)\
**Created:** [November 21, 2023, 4:32am UTC](https://forum.onefinitycnc.com/t/surfacing-with-t-track-issue/23519 "2023-11-21T04:32:15Z")\
**Posts on this page:** 1\
**Showing post:** 17

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**Author:** ![349iq2345](https://avatars.discourse-cdn.com/v4/letter/3/bb73d2/32.png) [@349iq2345](https://forum.onefinitycnc.com/u/349iq2345)\
**Post date:** [November 28, 2023, 9:09am UTC](https://forum.onefinitycnc.com/t/surfacing-with-t-track-issue/23519/17 "2023-11-28T09:09:17Z")

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Hey John,

> [@BigHick](#):
>
> Here’s a link to the cutter I used to flatten my waste board. I have a Makita router on a Journeyman. Worked like a champ and the inserts can be turned (4) times to a fresh edge when they dull. [https://www.amazon.com/gp/product/B08SKYYN7P/ref=ppx\_yo\_dt\_b\_search\_asin\_title?ie=UTF8&psc=1](https://www.amazon.com/gp/product/B08SKYYN7P/ref=ppx_yo_dt_b_search_asin_title?tag=benmyers-20)

what depth of cut do you choose then?

Me personally would follow Makita’s advice in the manual and not use bits wider than 1/2" diameter. The hand trim router is in danger to be slowed down when using larger diameter bits, which because of the [typical motor characteristics](https://forum.onefinitycnc.com/t/incorrect-or-missing-data-on-cheap-chinese-vfds-and-spindles/18909/27) of a router will let it become hotter then and finally malfunction (see also warning in the manual), and it was always when using such a large diameter bit that a Makita reportedly began to burn and destroyed itself. See the links at the end of my [above post](https://forum.onefinitycnc.com/t/surfacing-with-t-track-issue/23519/10).

But I know that many people use it anyway. In this case I would only remove a shallow depth per pass, and not leave the machine alone (and know where you master power interruptor and your fire extinguisher is).

The advantage of this bit is that with it, you can very well check and adjust the **perpendicularity** ([tramming](https://forum.onefinitycnc.com/t/tramming-the-router/1132)) of your Z slider / router, as per the [Mitz Pellicciotta method](https://www.youtube.com/watch?v=GVpq96KFfvk), which is a method that works the better the larger the bit diameter is, because it looks at the direction of the patterns such a bit makes when it is not perpendicular to wasteboard surface. Works only as third step after you ensured your machine is [**rectangular** (“squared”) (_bar gauge_) and **coplanar** (“not twisted”) (_fishing line method_)](https://forum.onefinitycnc.com/t/what-do-i-do-first/18349/6).

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