# Is it possible to tram X/Y squareness with fixed feet?

**URL:** <https://forum.onefinitycnc.com/t/is-it-possible-to-tram-x-y-squareness-with-fixed-feet/7486>\
**Category:** Troubleshooting (X35/X50)\
**Created:** [August 30, 2021, 1:25pm UTC](https://forum.onefinitycnc.com/t/is-it-possible-to-tram-x-y-squareness-with-fixed-feet/7486 "2021-08-30T13:25:39Z")\
**Posts on this page:** 1\
**Showing post:** 23

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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:** [September 6, 2021, 12:33am UTC](https://forum.onefinitycnc.com/t/is-it-possible-to-tram-x-y-squareness-with-fixed-feet/7486/23 "2021-09-06T00:33:46Z")

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Hey Tom, hey Steven (@sdramer),

sure, that’s what it is. Geometry, instead of Comparing to a Reference Body.

But I find that like many youtube videos, it could be _much_ shorter and denser.

…And if you specifically take the onefinity cnc with its four feet that one wants to put on a table top (i.e. a flat surface), it is much simplier. You wouldn’t even need a meter, just a stick which, by putting marks on it, allows to compare two measures: The one diagonal and the other diagonal, measured like [in picture above](https://forum.onefinitycnc.com/t/is-it-possible-to-tram-x-y-squareness-with-fixed-feet/7486/6).(1) When the diagonals are equal, it’s “squared”. The diagonals in a parallelogram differ, the ones in a rectangle don’t.

1.) But [you are right](https://forum.onefinitycnc.com/t/is-your-router-frame-a-parallelogram-mine-was/6086/25), if you measure at the feet, you must be sure that the rail above is at a defined position relative to the foot

> [@Is your router frame a parallelogram? Mine was!](https://forum.onefinitycnc.com/t/is-your-router-frame-a-parallelogram-mine-was/6086/25):
>
> Also I imagine there is some variability/play in the two screws that hold each tube into the blocks at either end.

If instead, like in the video, you measure at the points where your bit drills a hole or your needle stitches the cardboard, you are the safest. That’s what I’m taking into account [with this other method](https://forum.onefinitycnc.com/t/is-it-possible-to-tram-x-y-squareness-with-fixed-feet/7486/8).

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