Man Cave Home Gym

So I moved my tinny (boat) out of my garage a while back, now I have so much more room for activities!

I have a structural support beam, partially exposed, running through the ceiling.
Chin up/pull up bar is what I need but a store bought one cost around $100 or more.
So I went to Bunnings
Got some steel tube, made sure it was a good size and grip, then got smaller diameter tubes that fitted into each other and some 10mm threaded rod for the center.
The stronger the better, you do not want any flex or bend.
To test this put some blocks under the very ends of your bar and stand on it.
If it bends this way then it will bend the other way, when your hanging off it.
When your happy with your bar move on to supports

After you have your main bars external diameter its time to find suitable brackets.
I just went through available selections until I found something effective.
Important qualities for consideration
* They should have a manufacturers max load rating, if not then move on. If you intend on using 2 brackets then multiply by 2 etc
* Always go above your avg weight, if you're quite slim like me (60kgish) Then rate the bar for 120kg min. You dont want your fat friend to rip it down when they want to try
* Clearance from beam or wall
* Excessive bulkyness and bar attachment points. Avoid any pointy or edges, these can really hurt if you catch an arm or head when in use.
*Slimline and smooth is what's best
* For the fixings/screws I used 75mm hex head roofing screws. 2 per bracket. Again check the max load ratings and multiply accordingly, these can easily be found online as can other product spec/data sheets

Before mounting make sure the the tubes inside are not loose, small gaps can be fixed by wrapping a few laps of tape evenly spaced on each tube as required until they are a snug fit inside the bar.
All the tubes etc I bought where in 1M lengths
Mark center and hold in front of face.
Depending on your shoulder width and preferred hand positions for specific exercises targeting different muscle groups find a good location on bar for brackets, closer increases strength of central bar but significantly reduces strength of the ends
I went 250mm in from each end, for wide grip pull up my hands have good grip just outside the brackets, while still leaving good clearance for normal over/under hand pull ups, perfect for me but temp mounting with smaller screws until you find what works for you.
Height wise, Il add a photo with me standing upright underneath.
I initially used pvc duct tape to wrap it all but after a while the tape moves and leaves a sticky residue, I've rewrapped with cloth duct tape but will probably use some type of hockey stick tape grip at a later stage. In hindsight an external pvc pipe would probably work well if it can be strengthened enough without making the bar diameter too big

I mounted some OTT solid brackets for a hammock, I put some heat shrink sleeving in bracket first then threaded a resistance band through, and small burrs or sharp edges on the metal bracket could put small cuts in the rubber.
This can be extremely dangerous as it could cause it to snap when in use, especially as this is quite thick rubber.
Ever have a small rubber band hit you when it breaks?
Note. The photo of resistance band is upside down and I dont know how to rotate the image