Garage Door Fundamentals Episode II: Torsion Spring Dyno

How your torsion spring works. IPPT explained.

[@brittshort2793]

Thank you once again for the information,easier to understand than any physics class except you're speaking about basic physics

[@bigtimedriller]

Thanks for the videos, great step by step - Another Canadian here, Glad I have 300 apples here to do my metric calculation.

[@My03Tundra]

I work for Chamberlain, and videos like this help me to better help my customers on the phone. Thank you very much for sharing.

[@daveoconnor9013]

Loved your humor. Made a boring excellent technical video fun!

[@studleylee]

Very well stated w/o all the murky craft talk. Clear and Concise. Thanks!!!

[@getstuk87]

I laughed my ass off at the "He'll be helping us out today...somewhat" comment

[@mikemcleroy8265]

Thanks for another awesome video!

[@ricardocuetara1]

Great video William !!!!! Thank you (Cheers from Canada lol)

[@johnnelson6537]

Thanks, it worked like a charm ✨️

[@supersneakusa4492]

Hi yall ... another Canadian here eh lol .... Rob here from Super Sneaky low headroom garage door hardware design and manufacturing. Here's brain buster for you .... how to do a counter weight balance system without having the pulley double the height of the door. Other wise weight will hit the floor leaving door halfways up. Other counter weight systems on market have technical flaws. I was thinking about making a hole in the floor so weights had extra travel length, but seems like a tonne of work. Counterweights are far superior, especially with very heavy doors. I saw a 16 x 16 solid wood vertical lift counterweight door with wood tracks, well over 100 years old, you could lift it with one finger it was balanced that perfectly. Had to weigh 2000 lbs plus.... ooops did I use imperial lol

[@vinosinniah571]

Thank you great explanation

[@blindhouse83]

Great video!

[@demon1024]

Doesn't matter if you had said china, most of the world uses metric and I found it funny and self insulting. Great video! Bookmarking this one for reference

[@jimjackson4256]

Bust out the calculator? I’ve never had to “bust out” my calculator it sits on my desk.You are still getting a like though.

[@georgehatz5927]

The slight shade towards the metric system 😂

[@Loglakeliving]

Excellent instruction! Love the...what did you call it? Oh yeah..satire!

[@Fragosgaragedoorvids]

I'm from Canada, and I've actually never heard of that way of measuring stuff :p I use the Imperial system daily and the Metric system is never used. I go by MPH. Lbs. Feet, inches etc.. just makes more sense to me.

[@benoitjolin]

I appreciate someone explaining how these doors work as I am new in the door business at CDS Edmonton. Thanks for the dig at Canadians...... Aren't you Canadian. I thought I saw and advertisement for "Well Hung Doors" in there somewhere. EH!

[@JCWin77]

I just had my torsion spring replaced by a professional. I noticed now the door stops at the top with a jolt. Enough to make a small banging sound and to see physical movement of the opener itself. The travel limits have been adjusted so the door is not hitting the bolt. This never happened before and my other garage door (with the exact same opener) stops at the top softly and quietly. Can this be due to too much tension in the torsion spring? I had the company come back out to take a look and I was assured it was "normal" and there wasn't any other adjustment they could make.

[@garrettdodson6110]

Do a video of the massive door and spring setup that’s in the beginning of this video

[@doomaster4]

How much torque is on the winding bars when winding or unwinding? is it the 300lbs of torque?

[@brazilnut8898]

@streetstarrods It's called satire. Trust me, I'm very aware (and grateful) of Canada's contributions like basketball and instant potatoes. My uncle told me you guys invented doggy style so that you could both watch the hockey game at the same time. God bless you neighbor

[@stumpy1956]

Dude ready

[@haraji_hafizsiraaj5462]

what are the mathematical equations for thiese

[@johnpetrucci2590]

If the number of windings needed is based on the height of the door, is it appropriate to tighten a spring that has lost some of its strength over the years?

[@zkdr6278]

That's a good question, I wonder that too.

[@polymyxa8233]

With a 4-inch dia. drum, with each 1/4 winding or unwinding turn of the spring, the cable travels 3.14 inches. With a full turn, it travels 12.56 inches. When the door opens, the door (or the cable) travels 8 feet, and the spring only makes 7.64 unwinding turns. That means that the spring will not be unwound completely when the garage door completely opens. So there still should be 0.36 unwound turns (some tension) in the spring. If you tighten the spring more, for instance 1 additional turn, after a few years of use, the door (the cable) still travels 8 feet, and the spring still unwinds 7.64 turns when the door completely opens. That means the spring will have more unwound turns (1.36 turns) when the door is open.

[@douglasdeveau]

Hey! I'm from Canada and the metric system is superior! lol

[@esimin]

a ha-ha from Canada

[@danielchan9556]

funny thing is most garage door guys dont even know what ippt is lol i use to make all my own springs from scratch most of them only know height of the door plus half a turn then when you got hilift they just call me and ask lmao

[@bekind42]

I doubt all garage door repairmen really understands all of this or care to do so. Every time I use engineering term with these guys they always certainly respond with vague answer suggesting that they had no clue of what I was talking about. BTW... engineering universities in the US, uses the Nm to describe Torque instead of the british units (which are not used by Britain except commercially in the US...) but, it was a good shot at our great neighbor, Canada.

[@uncleruckus4916]

BROGINEERING

[@robertbroadbent3881]

Didn't finish I'm afraid - opening shot showing spanner being incorrectly used lost me

[@brazilnut8898]

Dude. It was a joke.

[@knightklaw]

Apparently 2 people who watched this are Canadians with no sense of humor. Annnnd they both commented. Streetsarrods and callmenort, you may as well just shut off the computer and stay off the internet. Sarcasm, satire, and humor are obviously concepts neither of you understand. Thanks for an informative video. You might wish to include a link to future episodes in the video description or near the end of the video.

[@DennyNarciso]

its not just in Canada, and yes it is insulting! USA didn't even exist and the metric system was already used in most parts of the world. And let me say that the metric system is better, since the measuring of the entire numbers are in a smaller scale.

[@edwaggonersr.7446]

The United States came into existence in 1789, the same year as the French Revolution. It was after the French Revolution that the Metric System was begun. Me Thinks.

[@tekksavvy2242]

guess it means if not installed by a professional..this mechanism can fail causing 150 pounds of garage door to land on your head!

[@garagedoorgenius]

Tekk Savvy Yep. I have a video that shows that!

[@alycestapleton]

"Lesser developed parts of the world" umm excuse me so Canada and Australia are lesser developed because we use metric as opposed to imperial?? How many countries use the metric system? Vs imperial?

[@zlatkozivkovic8694]

More, much more.

[@zlatkozivkovic8694]

"lesser developed part of the world that uses metric system?" Hello USA...seriously? Most of the world uses metric system...it's much simpler...

[@catsspat]

Whooooosh!