# Root 4 maximum size? **URL:** \ **Category:** Root 4\ **Created:** [24 July 2022 04:24 UTC](https://rootcnc.discourse.group/t/root-4-maximum-size/239 "2022-07-24T04:24:03Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![kreeves](https://avatars.discourse-cdn.com/v4/letter/k/a88e4f/32.png) [@kreeves](https://rootcnc.discourse.group/u/kreeves)\ **Post date:** [24 July 2022 04:24 UTC](https://rootcnc.discourse.group/t/root-4-maximum-size/239/1 "2022-07-24T04:24:03Z")
Hello everyone, I am going to build the Root 4 with 2.5m\*1.5m. Did anyone here built a Root 4 with that size and experienced any bending in the x- and y- axis? I was wondering if I need bigger ballscrews like 2010 or something for that length? I hope you guys can answer these two questions. Thx. ---
**Author:** ![CDMAIA](https://avatars.discourse-cdn.com/v4/letter/c/839c29/32.png) [@CDMAIA](https://rootcnc.discourse.group/u/CDMAIA)\ **Post date:** [3 August 2022 20:41 UTC](https://rootcnc.discourse.group/t/root-4-maximum-size/239/2 "2022-08-03T20:41:04Z")
I am building a Root 4, 8 feet by 4 feet and am using two 2010 y axis ball screws and one 1610 x axis. I am modifying the Root parts to make them stronger by using two 1.5 inch square steel y axis on each side and two 1.5 square steel x axis. CNC will have two 425 motors on y axis and 425 motors on x and z axis. Using a 110v 2.2kw water cooled router and VFD. Still building so don’t know if my design will have any problems. ---
**Author:** ![fontanes75](https://avatars.discourse-cdn.com/v4/letter/f/5fc32e/32.png) [@fontanes75](https://rootcnc.discourse.group/u/fontanes75)\ **Post date:** [26 September 2023 15:20 UTC](https://rootcnc.discourse.group/t/root-4-maximum-size/239/3 "2023-09-26T15:20:01Z")
I’m starting to build a 2404x1290mm working area Root 4 machine. I’ve used the xls file from the site, so I will use 2 box sections, lenght 2650, for the Y-axis. The box sections will be 3mm thickness for more rigidity. Now I’m looking for the 2 ball screws, 2700mm lenght … please share your project during the building … thank u Gigi