# Calibration Bed Size
**URL:** https://forums.maslowcnc.com/t/calibration-bed-size/24220
**Category:** Troubleshooting
**Created:** [May 28, 2025, 3:10am UTC](https://forums.maslowcnc.com/t/calibration-bed-size/24220 "2025-05-28T03:10:58Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@TravisGood](https://forums.maslowcnc.com/u/TravisGood)
#### Post date: [May 28, 2025, 3:10am UTC](https://forums.maslowcnc.com/t/calibration-bed-size/24220/1 "2025-05-28T03:10:58Z")
I’ve been trying to calibrate for a 4’x8’ sheet of ply. Even with 9x9 I was not able to calibrate on the dimensions of a full sheet of ply. I could do 1000mm x 2000mm but that’s far short of 1219mm x 2438mm.
Does the calibration boundary define the outer boundary of the cutting area?
That is, if I calibrate for 1000x2000 can I still cut pieces that are larger?
Cutting full sheets has been an ambition of mine from the start.
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### Author:  [@dlang](https://forums.maslowcnc.com/u/dlang)
#### Post date: [May 28, 2025, 4:14am UTC](https://forums.maslowcnc.com/t/calibration-bed-size/24220/2 "2025-05-28T04:14:46Z")
[TravisGood@gmail.com](mailto:TravisGood@gmail.com) wrote:
> I’ve been trying to calibrate for a 4’x8’ sheet of ply. Even with 9x9 I was not able to calibrate on the dimensions of a full sheet of ply. I could do 1000mm x 2000mm but that’s far short of 1219mm x 2438mm.
what is your frame size? it may be that you are trying to calibrate in an area
where the arms hit the uprights
> Does the calibration boundary define the outer boundary of the cutting area?
no, it’s just the area used for the calibration, it shoud be conservatively
inside the area where the arms do not hit the uprights (the green area in the
frame size calculators, mine is at [http://lang.hm/maslow/maslow4\_frame.html](http://lang.hm/maslow/maslow4_frame.html) I
don’t have the link to Bar’s handy)
> That is, if I calibrate for 1000x2000 can I still cut pieces that are larger?
yes.
David Lang
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### Author:  [@TravisGood](https://forums.maslowcnc.com/u/TravisGood)
#### Post date: [May 28, 2025, 2:57pm UTC](https://forums.maslowcnc.com/t/calibration-bed-size/24220/3 "2025-05-28T14:57:53Z")
> [@dlang](#):
>
> what is your frame size?
2438 x 3505 so plenty big.
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### Author:  [@bar](https://forums.maslowcnc.com/u/bar)
#### Post date: [May 28, 2025, 4:18pm UTC](https://forums.maslowcnc.com/t/calibration-bed-size/24220/4 "2025-05-28T16:18:12Z")
> [@TravisGood](#):
>
> That is, if I calibrate for 1000x2000 can I still cut pieces that are larger?
Yes, absolutely.
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### Author:  [@dlang](https://forums.maslowcnc.com/u/dlang)
#### Post date: [May 28, 2025, 4:30pm UTC](https://forums.maslowcnc.com/t/calibration-bed-size/24220/5 "2025-05-28T16:30:52Z")
[TravisGood@gmail.com](mailto:TravisGood@gmail.com) wrote:
> 2438 x 3505 so plenty big.
actually, that frame size can run into grief at the top and bottom center and in
the corners.
not a lot of grief, but enough to mess up the calibration.
see [http://lang.hm/maslow/maslow4\_frame.html](http://lang.hm/maslow/maslow4_frame.html)
David Lang
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### Author:  [@TravisGood](https://forums.maslowcnc.com/u/TravisGood)
#### Post date: [May 28, 2025, 5:44pm UTC](https://forums.maslowcnc.com/t/calibration-bed-size/24220/6 "2025-05-28T17:44:38Z")
@DLang, I don’t remember where this calculator can be found.
In the past I remember having seen published examples.
Is it somewhere on a web page for us all to access?
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### Author:  [@dlang](https://forums.maslowcnc.com/u/dlang)
#### Post date: [May 28, 2025, 10:12pm UTC](https://forums.maslowcnc.com/t/calibration-bed-size/24220/7 "2025-05-28T22:12:30Z")
[TravisGood@gmail.com](mailto:TravisGood@gmail.com) wrote:
> @DLang, I don’t remember where this calculator can be found.
> In the past I remember having seen published examples.
> Is it somewhere on a web page for us all to access?
the url is in the prior post
David Lang
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### Author:  [@TravisGood](https://forums.maslowcnc.com/u/TravisGood)
#### Post date: [May 28, 2025, 10:37pm UTC](https://forums.maslowcnc.com/t/calibration-bed-size/24220/8 "2025-05-28T22:37:14Z")
😄
The page looked so static I had assumed it was a jpg.
Thanks, I’ll head off now and toy with it.
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### Author:  [@dlang](https://forums.maslowcnc.com/u/dlang)
#### Post date: [May 28, 2025, 10:54pm UTC](https://forums.maslowcnc.com/t/calibration-bed-size/24220/9 "2025-05-28T22:54:46Z")
[TravisGood@gmail.com](mailto:TravisGood@gmail.com) wrote:
> The page looked so static I had assumed it was a jpg.
I’m an engineer, not a UI developer 🙂
David Lang