I am so not surprised by this.

SeaCat

Hey, my Halo is smoking
Joined
Sep 23, 2003
Posts
15,378
I can so see this.

I got a phone call from my mother and she was laughing her ass off.

My father decided he needed to make a disk sander for his basement workshop. He dug around in his shed and found an electric motor. Strangely enough this one didn't have a tag on it complete with a description.

He mounted it on the workbench and created a mounting to fit the sanding disk on the spindle. Then he started it up.

The whine from the motor was higher than he expected. Much higher. Then he gingerly pressed a piece of wood against the sanding disk only to watch a cloud of fine dust appear along with the smell of burning wood. Then the sanding disk disintegrated.

It turns out the motor was a high speed motor he had picked up in a box of assorted parts in an auction. Instead of the maybe 1000 rpm he wanted it was spinning at roughly 10,000 rpm.

The motor is now labeled and sitting in his shed waiting for him to find a use for it.

He still doesn't have a disk sander for his workbench.

Cat

(I can easily see this happening with my father. He tends to pick up things like electric motors. He made himself a super high RPM Tile Saw when he was re-doing his bathroom. He's an engineer and likes to play.)
 
BlackShanglan said:

LOLOLOL

I'll pass that on to my father. He'll love it. (And I may be able to borrow it during the winter.) He's an Electronics Engineeer. (I have a degree in Electronics specializing in Robotics.)

The problem here was the motor wasn't labeled. He had no idea of it's speeds or loads. So he tested it.

Cat
 
jomar said:
Tool Time - turbo charge it!

LOLOLOL

You have no idea how close t the truth you are.

This is the guy who when he was cutting trees and brush in his back yard decided decided he needed a wood chipper. (Heaven forbid he rent one.) He sat down and in the course of one night drew up plans for a wood chipper.

His wood chipper used a medium sized gas motor and counter rotating saw blades. He built this thing in his garage.

His wood chipper would eat at a healthy clip six inch diameter logs. His neighbors hated his creation. The sounds it made would wake the dead and it didn't really produce chips. It created saw dust.

Cat
 
SeaCat said:
It turns out the motor was a high speed motor he had picked up in a box of assorted parts in an auction. Instead of the maybe 1000 rpm he wanted it was spinning at roughly 10,000 rpm.
Woah. Sounds like he was lucky something didn't snap at the wrong time and killed him.
 
SeaCat said:
I can so see this.

I got a phone call from my mother and she was laughing her ass off.

My father decided he needed to make a disk sander for his basement workshop. He dug around in his shed and found an electric motor. Strangely enough this one didn't have a tag on it complete with a description.

He mounted it on the workbench and created a mounting to fit the sanding disk on the spindle. Then he started it up.

The whine from the motor was higher than he expected. Much higher. Then he gingerly pressed a piece of wood against the sanding disk only to watch a cloud of fine dust appear along with the smell of burning wood. Then the sanding disk disintegrated.

It turns out the motor was a high speed motor he had picked up in a box of assorted parts in an auction. Instead of the maybe 1000 rpm he wanted it was spinning at roughly 10,000 rpm.

The motor is now labeled and sitting in his shed waiting for him to find a use for it.

He still doesn't have a disk sander for his workbench.

Cat

(I can easily see this happening with my father. He tends to pick up things like electric motors. He made himself a super high RPM Tile Saw when he was re-doing his bathroom. He's an engineer and likes to play.)

Reminds me of a video I saw where a bunch of college students used a dremel tool to spin CDs. They would then yank the Dremel tool out and allow the superspinning CD fall to the ground and run across the room, then up the wall, back to the floor, up the wall again... (Here is one example)

And on Mythbusters they were testing the exploding CD myth. I believe they used a dentist's drill to get the proper RPM, and ramped that sucker up until the CD's burst apart. As I recall it embedded pieces of CD more than a quarter inch into ballistics gel.
 
TheeGoatPig said:
Both do have their own sets of uses though :D

Yes they do.

The sound this thing makes is incredible. Think of a cross between a Harley and a Bandsaw hitting metal.

Cat
 
Liar said:
Woah. Sounds like he was lucky something didn't snap at the wrong time and killed him.

Yep, although he does take that into acount with anything like this. He makes sure to stand out of line with these things as well as putting hoods over them. (I've seen a couple of things shatter when he spun them up.)

The most insane thing he has ever built was a brush cutter. It was complex and over engineered but man did it cut through brush.

Cat
 
only_more_so said:
Reminds me of a video I saw where a bunch of college students used a dremel tool to spin CDs. They would then yank the Dremel tool out and allow the superspinning CD fall to the ground and run across the room, then up the wall, back to the floor, up the wall again... (Here is one example)

And on Mythbusters they were testing the exploding CD myth. I believe they used a dentist's drill to get the proper RPM, and ramped that sucker up until the CD's burst apart. As I recall it embedded pieces of CD more than a quarter inch into ballistics gel.
That brought up[ a million dremel how-to's. Here's one I'm glad i watched;
http://www.youtube.com/watch?v=uHKpfgbxYks

Useful!
 
SeaCat said:
Yes they do.

The sound this thing makes is incredible. Think of a cross between a Harley and a Bandsaw hitting metal.

Cat

While I have heard both, it's been a long time since I was near a wood shop and have only heard a bandsaw on metal once. I don't recall the sound at all :(
 
Your dad sounds like an interesting guy, Cat. I'll bet you could build a good TV sitcom around him...oh, wait.
 
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