# Issue with dovetail bit on Morgan Hop’s Wasteboard File

**URL:** <https://forum.onefinitycnc.com/t/issue-with-dovetail-bit-on-morgan-hop-s-wasteboard-file/22425>\
**Category:** Troubleshooting (X35/X50)\
**Created:** [September 18, 2023, 12:36am UTC](https://forum.onefinitycnc.com/t/issue-with-dovetail-bit-on-morgan-hop-s-wasteboard-file/22425 "2023-09-18T00:36:55Z")\
**Posts on this page:** 1\
**Showing post:** 8

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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:** [February 19, 2024, 9:17pm UTC](https://forum.onefinitycnc.com/t/issue-with-dovetail-bit-on-morgan-hop-s-wasteboard-file/22425/8 "2024-02-19T21:17:37Z")

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Hey Jason,

> [@JWB](#):
>
> I just purchased the files and wondered at what point I should surface? I assume I would surface after running the V-bit test. Am I correct?

I don’t know to which “V-bit test” you refer to, but usually, surfacing is done as soon as the machine is ready for use. But it is not ready for use before it is checked and adjusted for rectangularity and coplanarity. Before surfacing, have you ensured your machine is

1. [**rectangular** (“squared”) (_bar gauge_) and 2. **coplanar** (“not twisted”) (_fishing line method_)](https://forum.onefinitycnc.com/t/what-do-i-do-first/18349/6)?

Surfacing the wasteboard does help nothing if the machine is not accurately rectangular (“squared”) and coplanar (not twisted). All your workpieces including the wasteboard will remain a parallelogram and have a twisted surface if you didn’t ensure that steps 1 and 2 are done accurately.

Furthermore, if rectangularity and coplanarity are not perfect, the Y movement can block or have “hiccups”.

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