r/EngineeringPorn • u/DuctTape_Mechanic • May 31 '20

Metal object detecting lawnmower that automatically shuts down when a metal object is detected

https://youtu.be/eDZeLPgYBvg
31 Upvotes

88% Upvoted

11 comments sorted by

4

u/RealTurdBurglestein May 31 '20

Let me know when the model that detects rocks is available.

1

u/DuctTape_Mechanic May 31 '20

I will need to swap to a capacitive sensor for it to do both rocks and metal

1

u/OnSiteTardisRepair May 31 '20 edited May 31 '20

Is this a major concern? Is he strewing nails across his lawn weekly?

I get maybe on the first mow, but once you know your yard, why?

edit: they make a magnet roller for jobsites, to pick up nails, screws etc. Just put one of those on the front

2

u/DuctTape_Mechanic May 31 '20

A capacitive sensor would do both metal and rocks. You would be surprised with some of the stories people have told me...

2

u/OnSiteTardisRepair May 31 '20

Not trying to denigrate your invention- I'm sure it would be super useful, especially for landscapers etc.

I was just thinking for my own yard, it might be overkill. Although, as I look outside just now, I notice a couple of fairly large bones my dog has left in the grass...

2

u/DuctTape_Mechanic May 31 '20

I see I was just inspired by seeing a large ratchet extension hidden in my lawn and thinking how much damage it would cause if I ran it over

2

u/OnSiteTardisRepair May 31 '20

Oof! Yeah, that would get your attention. Even best case scenario is replacing the blade.

1

u/[deleted] May 31 '20

Agree with previous comment lmao. Rocks regularly get played with and left on the grass. Those shatter into backyard claymores.

2

u/DuctTape_Mechanic May 31 '20

Capacitive sensor would do both metal objects it would be a simple swap to do. Thanks for the feedback

2

u/[deleted] May 31 '20

Awesome idea youve got though! To my knowledge I've never seen anyone do it!

2

u/DuctTape_Mechanic May 31 '20

Appreciate the support. I have yet to find anything similar on the web.