Hello all.
I'm trying to cut three slots in a cross section of pipe to make a steady rest. The pipe is 8" OD and the closest thing I have to a rotary table is a dividing head for Taig sized chucks. Is there a trick or technique to aid me in locating the three slots? I have a DRO setup and was thinking I could locate center then use coordinates for six pins equally spaced around the diameter. I could then use these pins to hold a bar and indicate off the bar to get my y axis parallel with each slot. I can then find center and mill the slot.
Anyone have any suggestions? Worst case I can pester the guys at work and have them put in on the CNC. I'd like to do it myself though. I've attached a drawing of what I'm thinking.
![Capture.PNG Capture.PNG](https://www.hobby-machinist.com/data/attachments/90/90701-a2c98b8a8b1d8254f3558a2fd918fc6b.jpg)
I'm trying to cut three slots in a cross section of pipe to make a steady rest. The pipe is 8" OD and the closest thing I have to a rotary table is a dividing head for Taig sized chucks. Is there a trick or technique to aid me in locating the three slots? I have a DRO setup and was thinking I could locate center then use coordinates for six pins equally spaced around the diameter. I could then use these pins to hold a bar and indicate off the bar to get my y axis parallel with each slot. I can then find center and mill the slot.
Anyone have any suggestions? Worst case I can pester the guys at work and have them put in on the CNC. I'd like to do it myself though. I've attached a drawing of what I'm thinking.
![Capture.PNG Capture.PNG](https://www.hobby-machinist.com/data/attachments/90/90701-a2c98b8a8b1d8254f3558a2fd918fc6b.jpg)