I'm finally getting back to work on a SB model A with a 4-1/2' bed. I was setting it on the bench and noticed a machined flat spot on the underside of the bed. It almost looks like it had a center leg for added support.![IMG_3312.JPG IMG_3312.JPG](https://www.hobby-machinist.com/data/attachments/232/232227-f081aa0f7f57a2f4e13d74e7342e374a.jpg)
It's definitely a shiney machined flat spot at the center of the bed. You can see in the pic what I'm talking about and I'm pretty sure my SB 3-1/2' bed does not have this. Anyone have any ideas. Thanks.
![IMG_3312.JPG IMG_3312.JPG](https://www.hobby-machinist.com/data/attachments/232/232227-f081aa0f7f57a2f4e13d74e7342e374a.jpg)
It's definitely a shiney machined flat spot at the center of the bed. You can see in the pic what I'm talking about and I'm pretty sure my SB 3-1/2' bed does not have this. Anyone have any ideas. Thanks.
Last edited: