# New Unistrut build - critical dimensions

**URL:** <https://forums.maslowcnc.com/t/new-unistrut-build-critical-dimensions/2579>\
**Category:** Hardware\
**Created:** [March 3, 2018, 2:49am UTC](https://forums.maslowcnc.com/t/new-unistrut-build-critical-dimensions/2579 "2018-03-03T02:49:39Z")\
**Posts on this page:** 1\
**Showing post:** 16

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**Author:** ![commonthings](https://avatars.discourse-cdn.com/v4/letter/c/f475e1/32.png) [@commonthings](https://forums.maslowcnc.com/u/commonthings)\
**Post date:** [March 3, 2018, 7:21pm UTC](https://forums.maslowcnc.com/t/new-unistrut-build-critical-dimensions/2579/16 "2018-03-03T19:21:39Z")

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You might have a look at the unistrut based frame I posted on the Advanced Frame Design thread last week:

> [@Advanced Frame Design](https://forums.maslowcnc.com/t/advanced-frame-design/2245/4):
>
> Here is the frame I’ve designed for the Maslow. I’ll need to fine tune it when my kit arrives, but this is what I have at this point. I know, I know, the first thing that comes to mind is “this is totally overbuilt”. However motor to substrate rigidity is essential to the Maslow design. Even a millimeter of flex in the frame contributes to less accuracy in the cut. There are several issues I’ve tried to address with the construction: Rigid construction to reduce flex in motor supports under lo…

I’ve used a 12’ top beam 2’ above the top edge of the cut area to reduce problems with extreme chain angle. The chain distance and frame angle are adjustable for work with various materials. I paid particular attention to making the frame as rigid as possible.

My kit has not arrived yet for fine tuning details on the frame. Dlang had a great idea for adjusting the top beam for proper chain distance with a block of the wasteboard or cut material that I will be implementing.

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