# How to "Semi-Manually" Calculate a surface width of a V-Bit Carve

**URL:** <https://community.inventables.com/t/how-to-semi-manually-calculate-a-surface-width-of-a-v-bit-carve/25477>\
**Category:** Projects\
**Created:** [June 29, 2016, 4:04am UTC](https://community.inventables.com/t/how-to-semi-manually-calculate-a-surface-width-of-a-v-bit-carve/25477 "2016-06-29T04:04:02Z")\
**Posts on this page:** 1\
**Showing post:** 7

<div class="post-metadata">

**Author:** ![NathanButler](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/nathanbutler/32/21390_2.png) [@NathanButler](https://community.inventables.com/u/NathanButler)\
**Post date:** [June 29, 2016, 1:24pm UTC](https://community.inventables.com/t/how-to-semi-manually-calculate-a-surface-width-of-a-v-bit-carve/25477/7 "2016-06-29T13:24:13Z")

</div>

I made this calculator awhile back

> [@Engraving / PCB Trace Width Calculator](https://community.inventables.com/t/engraving-pcb-trace-width-calculator/20793):
>
> I got tired of pulling out my calculator to get the trace width for such and such depth and this bit angle but what’s the tip diameter. [Engraving / PCB Trace Width Calculator](https://docs.google.com/spreadsheets/d/1L84drE37Cbr_ajGa6MBPS90CHwh_5dAMS3HaUx9TOc4/edit?usp=sharing) This allows you to enter the bit angle and tip diameter and get the trace width with a % safety depth OR a set depth safety offset(because you wouldn’t want to mill 1.4 mils of copper at a depth of exactly 1.4 mil) It also allows you to enter the bit angle, tip diameter, and depth of cut if you have something else in min…

You can download it as a number of different file types, as well as “make a copy” for your own Google drive to modify the values.

---

_[View the full topic](https://community.inventables.com/t/how-to-semi-manually-calculate-a-surface-width-of-a-v-bit-carve/25477)._