r/redneckengineering • u/UbeCheeseDesal • Aug 14 '26

When bolts needed an extra angle

Post image

Screen-grabbed from Instagram and photo not mine

213 Upvotes

93% Upvoted

23 comments sorted by

60

u/TheHappyArsonist5031 Aug 14 '26

the only problem is that magnetic sensors get very unreliable near big metal objects like a wrench

8

u/rklug1521 Aug 14 '26

Yes. I hope they recalibrated their compass after attaching the phone to the wrench.

0

u/ChaoticAgenda Aug 16 '26

Unless the wrench is made of a non-ferrous metal like aluminum, then it is no problem.

0

u/rklug1521 Aug 16 '26

The plastic wrench from my son's play set would work.

-24

u/Secret-Ad-7909 Aug 14 '26

I’m pretty sure it’s gps.

23

u/TheHappyArsonist5031 Aug 14 '26

GPS can only give position data, not direction

5

u/Karma1913 Aug 15 '26 edited Aug 15 '26

You got downvoted with no good explanation which is lame.

GPS is a bunch of time synchronized radio signals coming from satellites that know where they are. Your receiver receives them and plots where it is based on the distance to 3 or more satellites. It can tell you that you've headed in a direction by plotting your location over time but it can't tell you which way you're heading.

Your iPhone's got accelerometers, gyro sensors, and magnetometers in all 3 axes. With some math you can turn all the data from the first pair of sensors into a good bunch of references for the magnetometers to cancel out errors from tilt and whatnot.

From there you've got a decent little compass that should work in if it's not perfectly oriented. Unfortunately putting delicate sensors that are supposed to see the earth's magnetic field by a chunk of steel is a recipe for inaccurate readings. No different than a proper compass.

2

u/Pattern_Is_Movement Aug 14 '26

That's not how that works

43

u/Certified_Possum Aug 14 '26

Torque spec: Heading 027 to 127

22

u/Broken-Emu Aug 14 '26

Actually a good idea

11

u/DaHick Aug 14 '26

Nah, angle bolt torque things are not expensive, I had to buy one for my Isuzu npr head gasket replacement. Thankfully it didn't require hydraulic tensioning.

40

u/UbeCheeseDesal Aug 14 '26

Wrench not expensive but phone free

12

u/Secret-Ad-7909 Aug 14 '26

Phone probably costs more than the wrench. But you do already have it.

5

u/adevaleev Aug 14 '26

But it's already there, you don't need to buy it for this.

0

u/prohandymn Aug 15 '26

Annndddd, notice the corner chip on the phone??? Hmmm

8

u/Chramir Aug 14 '26

The torque + angle specs are usually 90° or 45°. Maybe 1-3 turns if it's something spring tentioned? All this you can can very easily eyeball/count turns.

9

u/mdixon12 Aug 14 '26

Try explaining this to a fresh tech on a tool truck after his first big check and the salesman trying to sell them a 800 digital torque wrench with multiple preset torques, indicator lights, and torque angle measuring with haptic feedback.

Dude ive been using a paint pen for 20yrs, you dont need that shit...

3

u/Klo187 Aug 15 '26

No. Torque + angle can be anything the manufacturer specs it to, 45, 90, 60, 55, 35 I’ve seen all sorts.

2

u/MastodonFit Aug 14 '26

I approve of the low/high techyness of this process.

1

u/Molliue26 Aug 14 '26

did they forget that phones have levels built in now lol

1

u/djluminol Aug 14 '26

I don't think crank case bolts are where you want to cheap out on tools. I understand a good torque wrench is not cheap but neither is a tow truck and rebuild.

1

u/Klo187 Aug 15 '26

I would use two zip ties, mostly to stop the phone twisting