bending 5 foot dia circles of 1/2 or 3/4 EMT pipe

replying to Larry Jaques, brian wrote: Hi Larry, Tubing bender is just two expensive for fabrication just a few (as little as 2) hoops. Just yesterday I found a contractor friend who says he has a hand conduit bender i can borrow. I figure I can just make small incremental bends and get my circular hoops. Now I just have to figure out how to calculate those incremental bends to get my 5 foot hoop.

If you google "model railroad helix" you will see imagines of what I am looking to build,...but an alternative method/materials. Here is a forum subject thread I started on the project... _

these photos you will see a 4 foot dia metal ring I found at a junk yard (likely a rim of of outdoor table). This would work for a 4 foot dia helix, but I was looking for 5 foot dia,...hence my search for bending conduit into 5 foot dia circles. One hoop at the bottom, and one hoop at the top,...then 8 vertical pieces joining the 2 hoops. Inside this 'open style barrel' I would coil up a spiral hoop(s) of PVC pipe onto which to lay the rr track.

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Posted 2 years ago by brian in ⏣ General Metalworking

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