The Forestry Forum

General Forestry => General Board => Topic started by: btulloh on September 04, 2023, 07:46:21 PM

Title: Advice need on laying outs cuts for fab using square tubing
Post by: btulloh on September 04, 2023, 07:46:21 PM
I need to make 13 brackets like the one pictured below out of 2" sq tubing for an Escher-style staircase I'm building. Having a little trouble laying out some the angle cuts. Thought maybe the collective wisdom of the FF folks could be helpful.


(https://forestryforum.com/gallery/albums/userpics/39962/IMG_0114.jpeg?easyrotate_cache=1693871083)


Any thoughts or comments would be greatly appreciated.
Title: Re: Advice need on laying outs cuts for fab using square tubing
Post by: Old Greenhorn on September 04, 2023, 07:54:26 PM
Which rod are you using? ;D

Nope sorry, got nothin' for ya on that one. :D 
Let us know how you make out.
Title: Re: Advice need on laying outs cuts for fab using square tubing
Post by: Wlmedley on September 04, 2023, 08:02:34 PM
The longer I look at that picture the more confused I get.
Title: Re: Advice need on laying outs cuts for fab using square tubing
Post by: chevytaHOE5674 on September 04, 2023, 08:40:46 PM
Penrose triangle optical illusion. Built one a long time ago. Had it in the shop for many years until one day I needed the tubing for something.
Title: Re: Advice need on laying outs cuts for fab using square tubing
Post by: 21incher on September 04, 2023, 09:00:17 PM
The Tribar (Penrose Triangle) | Just some welding and the right angle Pt.1 - YouTube (https://www.youtube.com/watch?v=l1PCE47jwng)
Title: Re: Advice need on laying outs cuts for fab using square tubing
Post by: Nebraska on September 05, 2023, 07:47:53 AM
My eyes didn't like that picture at all...
Title: Re: Advice need on laying outs cuts for fab using square tubing
Post by: kelLOGg on September 05, 2023, 07:58:13 AM
Thanks for that video, 21. I have my sanity back now.
Title: Re: Advice need on laying outs cuts for fab using square tubing
Post by: JD Guy on September 06, 2023, 11:10:55 AM
Quote from: kelLOGg on September 05, 2023, 07:58:13 AM
Thanks for that video, 21. I have my sanity back now.
Same here, thought I was going crazy    8) 8)
Title: Re: Advice need on laying outs cuts for fab using square tubing
Post by: rusticretreater on September 06, 2023, 11:43:24 AM
I had to build like 20-30 of these for my never ending staircase. :D
Title: Re: Advice need on laying outs cuts for fab using square tubing
Post by: btulloh on September 06, 2023, 03:01:13 PM
 :D :D :D

Rusticretreater, I originally calculated 29 required but then I substituted a möbius escalator for one section of stairs.  :)
Title: Re: Advice need on laying outs cuts for fab using square tubing
Post by: Resonator on September 06, 2023, 06:53:04 PM
After mastering that, the next skills test is assembling an IKEA 8 drawer cabinet. smiley_thumbsup
Title: Re: Advice need on laying outs cuts for fab using square tubing
Post by: thecfarm on September 06, 2023, 07:15:03 PM
That makes my eyes go crazy!!!