Screw Jack Help Needed
I'm building a table and want to be able to adjust the feet of the legs individually. I have a coupler nut welded to angle iron with rubber attached to the bottom for the foot of the leg. There is a 3/8" threaded rod up through the tube steel out the top of the corner of the table with a T-handle at the top. I would like to be able to turn the t-handle on each corner of the table to adjust each individual leg, but I'm not getting any lift and the threaded rod just comes out of the coupler nut. The T-handle is not secured as of yet, and I was using a drill to get the rotation on the threaded rod.
I had a long, and dismal, conversation with ChatGPT about how to be able to get the desired effect. The threaded rod was going through a nut welded on the top of the table, but GPT told me to drill out the nut because there could only be one threaded part of the system. It told me to put a washer on top of the nut I drilled out and drive down 2 nuts on top of it to "secure" the rod. This did not work.
I know I'm missing something simple to get the drive and movement I'm looking for, or perhaps my though process is completely flawed and it was never going to work in the first place. Any insights would be helpful.
(Excuse the awful welds, it was my first go with a gasless welder and 20 gauge steel)
Posted Apr 2, 2026, 10:39 PM UTC