# Revolution Rotary dimensions **URL:** \ **Category:** Onefinity Rotary 4th Axis 'The Revolution'\ **Created:** [October 21, 2025, 1:47pm UTC](https://forum.onefinitycnc.com/t/revolution-rotary-dimensions/35909 "2025-10-21T13:47:06Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Ken5](https://avatars.discourse-cdn.com/v4/letter/k/f0a364/32.png) [@Ken5](https://forum.onefinitycnc.com/u/Ken5)\ **Post date:** [October 21, 2025, 1:47pm UTC](https://forum.onefinitycnc.com/t/revolution-rotary-dimensions/35909/1 "2025-10-21T13:47:06Z")
Hey I’ve looked through the manual at the technical drawings but I can’t see the size and the spacing of the mounting block bolts to the base for the headstock and the tail stock. Does any one have those dimensions? Thanks ---
**Author:** ![mikethejackwagon](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/mikethejackwagon/32/33512_2.png) [@mikethejackwagon](https://forum.onefinitycnc.com/u/mikethejackwagon)\ **Post date:** [October 21, 2025, 3:54pm UTC](https://forum.onefinitycnc.com/t/revolution-rotary-dimensions/35909/2 "2025-10-21T15:54:45Z")
Hey! I was just reviewing this the other day. In the Support section click manuals → Rotary → Additional Resources section. It looks like that has the right info for you. > [@Onefinity Revolution SPEC SHEET FAQ](https://forum.onefinitycnc.com/t/onefinity-revolution-spec-sheet-faq/30502): > > [Onefinity Revolution 4th Axis Rotary Spec Sheets.pdf](https://forum.onefinitycnc.com/uploads/short-url/yz6e04dkwhHsZdEVkhNuDkWbePB.pdf) (1.1 MB) ---
**Author:** ![Ken5](https://avatars.discourse-cdn.com/v4/letter/k/f0a364/32.png) [@Ken5](https://forum.onefinitycnc.com/u/Ken5)\ **Post date:** [October 21, 2025, 3:59pm UTC](https://forum.onefinitycnc.com/t/revolution-rotary-dimensions/35909/3 "2025-10-21T15:59:45Z")
Yeah, I have that one but it doesn’t show the mounting block hole spacing. That’s ok, worse case I’ll take it apart and measure the spacing. Just thought someone may have done this already.