# Q.C. approved piece looks kinda janky
**URL:** https://forum.onefinitycnc.com/t/q-c-approved-piece-looks-kinda-janky/27477
**Category:** Elite Series (Masso & Redline) (Gen 1)
**Created:** [June 15, 2024, 12:05am UTC](https://forum.onefinitycnc.com/t/q-c-approved-piece-looks-kinda-janky/27477 "2024-06-15T00:05:52Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@TFurnStudio](https://forum.onefinitycnc.com/u/TFurnStudio)
#### Post date: [June 15, 2024, 12:05am UTC](https://forum.onefinitycnc.com/t/q-c-approved-piece-looks-kinda-janky/27477/1 "2024-06-15T00:05:52Z")
The test piece that is marked q.c. approved doesn’t look that great. There are several obvious spots where the bit strayed and all the corners look overcut, but maybe the corners are part of a file that doesn’t look great to start with.
Anybody else have a similar issue or any input?
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### Author:  [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)
#### Post date: [June 15, 2024, 3:16am UTC](https://forum.onefinitycnc.com/t/q-c-approved-piece-looks-kinda-janky/27477/3 "2024-06-15T03:16:26Z")
The piece only proves the machine works in all axis and can cut, it’s set to sub optimal feeds and speeds (cut fast and dirty to crank out as many machines as possible). For us, is not a “how pretty can we make this within .000001 tolerance test cut.
It is also used with a bit that is probably way past its prime and dull (internal cost savings) on a non-trammed and non-surfaced machine.
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### Author:  [@349iq2345](https://forum.onefinitycnc.com/u/349iq2345)
#### Post date: [June 15, 2024, 4:54am UTC](https://forum.onefinitycnc.com/t/q-c-approved-piece-looks-kinda-janky/27477/4 "2024-06-15T04:54:55Z")
Hey Joshua,
I would do the initial squaring and adjusting coplanarity, tramming and surfacing of the machine and then with your favourite CAD/CAM software, create a 3D model and output a g-code toolpath and mill something yourself. Then you can see if your machine is accurate.
> [@Foreman Spoilboard Surfacing with MASSO Wizard](https://forum.onefinitycnc.com/t/foreman-spoilboard-surfacing-with-masso-wizard/26295/6):
>
> There is a video for tramming the milling motor by observing the visible patterns a surfacing bit leaves behind:
>
> 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
>
> 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).
>
> Only then I would proceed with
>
> 1. [**Tramming the router** (Checking for perpendicularity between milling motor axis and (different areas of) worksurface)](https://forum.onefinitycnc.com/t/tramming-the-router/1132/97)
>
> IMPORTANT NOTE: Surfacing the wasteboard **does help nothing** if the machine is not accurately rectangular (“squared”) and coplanar (not twisted)! Not at all! All your workpieces including the wasteboard will remain a parallelogram and be twisted if you don’t ensured steps 1 and 2 accurately.
>
> Finally you can check the **tramming** of the milling motor. One of its adjustments is made with the forward/back tilt of the two steel hollow shafts by adjusting their adjustment bolts in the black anodized axis ends (see [Support: Tramming - Front To Back](https://forum.onefinitycnc.com/t/tramming-front-to-back/8421) for details). If the tilt differs on one end of the axis from the other end, the milling motor will tilt from one end to the other and make the line it mills with your v-bit slightly deviating from a right angle.
#### Further Reading
- [How to choose your **Vector graphics / CAD / CAM Software**](https://forum.onefinitycnc.com/t/advice-from-experienced-or-learning-software-users/20313/7)
- Dto. but for Apple users:
> [@Not many 1F users on Carveco Maker](https://forum.onefinitycnc.com/t/not-many-1f-users-on-carveco-maker/14939/13):
>
> - [What CAD/CAM software can be used to make gcode files for the Onefinity CNC](https://forum.onefinitycnc.com/t/what-cad-cam-software-can-be-used-to-make-gcode-files-for-the-onefinity-cnc/10253)
> - [What is a Post Processor, What does it do, And why do I need one specificly for my Onefinity](https://forum.onefinitycnc.com/t/what-is-a-post-processor-what-does-it-do-and-why-do-i-need-one-specificly-for-my-onefinity/8709)
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### Author:  [@TFurnStudio](https://forum.onefinitycnc.com/u/TFurnStudio)
#### Post date: [June 15, 2024, 1:10pm UTC](https://forum.onefinitycnc.com/t/q-c-approved-piece-looks-kinda-janky/27477/5 "2024-06-15T13:10:33Z")
Good to know, I appreciate it.
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### Author:  [@TFurnStudio](https://forum.onefinitycnc.com/u/TFurnStudio)
#### Post date: [June 15, 2024, 1:15pm UTC](https://forum.onefinitycnc.com/t/q-c-approved-piece-looks-kinda-janky/27477/6 "2024-06-15T13:15:05Z")
That sounds reasonable enough, but without having that information up front, receiving a piece marked “q.c. approved” with some really obvious flaws caused a little immediate anxiety.
Maybe there’s a better way to communicate an appropriate expectation?
Thanks for the response.
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### Author:  [@TFurnStudio](https://forum.onefinitycnc.com/u/TFurnStudio)
#### Post date: [June 15, 2024, 1:16pm UTC](https://forum.onefinitycnc.com/t/q-c-approved-piece-looks-kinda-janky/27477/7 "2024-06-15T13:16:44Z")
Doing all that is the plan, but I appreciate it having all laid out in sequence and linked to more information.
Thanks.