CAD

"AestheticsInMotion" (aestheticsinmotion) 04/29/2018 at 21:54 • Filed to: None

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I want an in-home pull-up station that uses a 2x4 in place of a bar for the grip. I’ve never really built anything out of wood before... Any suggestions, tips or tricks?

I’m unsure how to fasten it all together safely, figured I’d worry about that after getting all the pieces cut. At the most basic level, what’s the most optimal way to attach two boards? For the top box structure, should I make 45° cuts as if I was doing baseboard trim?

Spanfeller is a twat > AestheticsInMotion 04/29/2018 at 21:58

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does it have a support beam behind the wall?

AestheticsInMotion > Spanfeller is a twat 04/29/2018 at 22:02

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Would studs be sufficient? I was hoping to fasten the whole thing into a stud on either side

jminer > AestheticsInMotion 04/29/2018 at 22:07

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Just butt square joints up top and pre drill the holes for screws. That’ll hold well, and be secure.

Mounting it to studs should also hold well.

RallyDarkstrike - Fan of 2-cyl FIATs, Eastern Bloc & Kei cars > AestheticsInMotion 04/29/2018 at 22:15

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Suggestions? Twigs make a poor wood source.

Spanfeller is a twat > AestheticsInMotion 04/29/2018 at 22:18

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For mounting TVs, ornaments, or other structures we normally attach those to studs, but given the weight that would handle I think you should perhaps look for a crossbar*.

*=I’m referring to horizontal beams

It also depends on the type of structure, we normally work with steel,concrete or brick, we never work with wood like many buildings in the US, so take what I say with a grain of salt, lest your Aesthetics end up in in uncontrolled Motion.

A little research found many kits using crossbars or studs as placement, and securing it all the way across as you say seems like a good cautious step.

OPPOsaurus WRX > AestheticsInMotion 04/29/2018 at 22:20

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are you sure you want to use a stud to do pull ups? I feel like that would be uncomfortable and probably put not good stresses on you hands. There would be a bunch of stuff you could get from a home improvement store foe cheap. Try to hit as many studs as possible.. each additional screw is a big help. think 200 lbs / 2 screws is 100 lbs of force, plus you bouncing around as you try to pull up. (its probably more than that cuz tourque and science and shit) 200/ 4 screws is 50 lbs / screw..... /8 is 25 lbs. i’d say 3 studs minimum 4 would be better and 2 per stud. you are going to want a long screw, 4 or 5 inches (1.5 inch for the mounted stud, .5 for drywall, could even be 1" depending on how it was built. Thats at least 2 inches before you even hit the wall stud and you would want to go in pretty deep

Flynorcal: pilot, offshore sailor, car racer and panty thief > AestheticsInMotion 04/29/2018 at 22:23

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You don’t have anything preventing side to side motion working against the metal corner caps you’ll want from Home Depot. Put a diagonal beam across the top. Get the corner cap fasteners (they can take nails but certainly use screws).

You’ll be fit as fuck just from building it. 

Source: former amateur skateboard ramp builder

AestheticsInMotion > Spanfeller is a twat 04/29/2018 at 22:29

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I love this place. One day I’m getting advice from lawyers on workplace dealings and the next day multiple engineers are chiming in on proper building and design technique! Thank you, I didn’t even consider crossbars.

Spanfeller is a twat > OPPOsaurus WRX 04/29/2018 at 22:30

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If I remember well enough from physics 101 the diagonal support helps a lot with torque.

We use expanding bolts for most fixtures.

Spanfeller is a twat > AestheticsInMotion 04/29/2018 at 22:34

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I’m still in college, but I appreciate the shout out!

I speak mostly from my experience working with developers here, most tall mountings or heavy mountings go to crossbars. But yeah, Oppo is sometimes a bit like a more responsive, nicer Yahoo answers.

Eric @ opposite-lock.com > AestheticsInMotion 04/29/2018 at 22:38

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The studs are likely sufficient, but if you’re worried, you can use TAE’s suggestion.

Definitely do the triangle and place the bar as close to the wall as practical.

You might also be surprised to learn that most grab bars they put in showers are just screwed into studs. Those can handle far more weight than you’d imagine.

XJDano > AestheticsInMotion 04/29/2018 at 22:42

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May want to use some better tape. But if you wanted, I’d at least do 3’ for verticals, screws every 6 “ into studs, then angle brace your box.

Like jminer said, predill everything.

Also record it so when it comes off and smacks your head we can all laugh.

AestheticsInMotion > OPPOsaurus WRX 04/29/2018 at 22:44

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I’ll slightly bevel the sharp edges and sand it down but yeah I’ve found having a flat palm with a solid support while still allowing fingers to curl makes for the most ideal pull-up based on muscle activation. Back when I was a full-time personal trainer I spent many hours at a local clinic with a surface EMG testing muscular activity with various pull-up grips... God I wish I still had access to to all of that stuff. Being able to scientifically test your “gut feelings” and anecdotal evidence was so wonderful in an industry full of endless opinions unsupported by any real research.

Sorry, bit off topic! I can definitely do 3 studs, 4 would be tricky. I’ll look for 5 inch (drywall?) screws, and use a bunch of em. Thank you for the help!

Yukon Cornelius > AestheticsInMotion 04/29/2018 at 23:11

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Studs are fine. Probably better than a header or cross beam as the torque would be spread over 8ish feet rather than the beam height. Make sure diagonal supports land on a stud

AMGtech - now with more recalls! > AestheticsInMotion 04/29/2018 at 23:51

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Everyone else has this wrong. DO NOT mount into studs, you’ll rip half the wall down. Mount dead center between the studs. It works better because it’s sort of like snowshoes on soft powder. Trust me on this.



HFV has no HFV. But somehow has 2 motorcycles > AestheticsInMotion 04/30/2018 at 00:02

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Cardboard Aided Design

AestheticsInMotion > AMGtech - now with more recalls! 04/30/2018 at 00:06

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I didn’t want to poke holes in my wall so I ordered some velcro and will set it all up tomorrow!

AMGtech - now with more recalls! > AestheticsInMotion 04/30/2018 at 02:05

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Gorilla glue is also a solid option. But you shouldn’t worry too much about holes, you can always fill them with toothpaste later.

random001 > AestheticsInMotion 04/30/2018 at 06:31

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Is no one else going to mention that rug...?

diplodicus forgot his password > OPPOsaurus WRX 04/30/2018 at 06:33

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I can confirm using a stud for pull ups long term is uncomfortable. I ended up with some intense callouses on the middles of my fingers. The wood will actually get imprinted with you hands though which is pretty cool.

random001 > AestheticsInMotion 04/30/2018 at 06:34

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First step is make sure you have a power drill. Do you have a power drill?

Use a screw brand called Spax, this will make your life easier. They are dwarven magic.

Would you like me to draw up a design for you?

BigBlock440 > AestheticsInMotion 04/30/2018 at 07:29

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Using the studs are fine, but you’re probably better off using the ceiling instead to make the majority of the force a pulling, rather than having that long torque arm hanging out of the wall. Granted, if you build it strong enough, either way is fine. I’d also recommend against using a 2x4, it doesn’t conform to your hands well and is very uncomfortable to use. Use a bar, you could get a closet bar or thick wooden dowel from a hardware store for not much more than a 2x4.

BobintheMtns > OPPOsaurus WRX 04/30/2018 at 07:53

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Yeah- square shape of the 2x4 is hard on your hands.. It’s like an unnatural crimp.. Get a bar

AestheticsInMotion > random001 04/30/2018 at 12:26

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Power drill, check! I’ll look for Spax screws.

Sure! I need the bar (handhold) to extend a foot out, and the studs are 16" apart, so I’m thinking skip one in the middle and make the whole thing roughly 32" wide

AestheticsInMotion > random001 04/30/2018 at 12:27

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A client of mine spent $500 on the rug for a party, decided she didn’t like it and offered it my way (despite returning it being completely free). It’s a bit... Frilly, but it works!

random001 > AestheticsInMotion 04/30/2018 at 12:33

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I’m just poking fun! Looks like it feels nice with bare feet, though...

random001 > AestheticsInMotion 04/30/2018 at 12:34

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Are you sure? Just a foot out? That’s pretty close to the wall...

AestheticsInMotion > random001 04/30/2018 at 12:36

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Yeah a foot out is plenty. The cardboard mockup is only 10 inches and honestly that’s probably enough. I don’t want this to be TOO in the way, or deal with the added complexity of making it removable, foldable, etc.

random001 > AestheticsInMotion 04/30/2018 at 12:40

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As long as you don’t bend your knees at all and throw a few more holes in the wall. Heh.

AestheticsInMotion > random001 04/30/2018 at 12:47

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Knee relief cutouts in the drywall....?

random001 > AestheticsInMotion 04/30/2018 at 12:48

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Eventually. =0P