The Saga of Big Red; the little jack stand that could!

antman22 · 05-19-2010, 09:13 AM

that's pretty impressive. i think for me, the fear wasn't in how much weight it can handle, it just seems to have a small footprint. its not likely that your car would move back and forth, but i like larger platforms with larger footprints for balance and safety.

billydsz · 05-19-2010, 10:15 AM

Not surprising. Column strength is very high in such a short structure. Did you do the tests at maximum height of the stand? The taller it is the easier it will buckle. However it looks as though the pin will fail before buckling anyway.

The sideways stability to me would be more worrisome than the column load. Although this unit seems pretty nice to me. I think those that look down their nose at it are a little uninformed. Thanks for the interesting post.

elmz · 05-19-2010, 12:04 PM

Quote:

Originally Posted by billydsz

Not surprising. Column strength is very high in such a short structure. Did you do the tests at maximum height of the stand? The taller it is the easier it will buckle. However it looks as though the pin will fail before buckling anyway

Good point! I'm curious what the results would be at an increased height where you could actually work under the car.

binto100 · 05-19-2010, 01:19 PM

Quote:

Originally Posted by elmz

Good point! I'm curious what the results would be at an increased height where you could actually work under the car.

That is a good question though I'm not sure the result would have been any different since the force was directly vertical. They did this test for free and I know I can't get another off the cuff.

billydsz · 05-19-2010, 01:52 PM

Quote:

Originally Posted by binto100

That is a good question though I'm not sure the result would have been any different since the force was directly vertical. They did this test for free and I know I can't get another off the cuff.

The taller the column is for a given diameter the weaker it is in a straight down compressive load. At failure the pipe would buckle. However, if the pin is weaker than the buckling load that would fail first.

Modshack · 05-19-2010, 10:18 AM

I never doubted the rated capacity of that stand. What I DON"T like is the base design that would seem to offer little lateral stability. Used on anything but an absolutely flat and stable base with absolutely NO potential of the car being nudged and you're probably OK..

I wouldn't buy those, but they are pretty.....

m4a1mustang · 05-19-2010, 10:42 AM

Quote:

Originally Posted by Modshack

I never doubted the rated capacity of that stand. What I DON"T like is the base design that would seem to offer little lateral stability. Used on anything but an absolutely flat and stable base with absolutely NO potential of the car being nudged and you're probably OK..

I wouldn't buy those, but they are pretty.....

+1.

Good thread, though. +1 rep!

05-19-2010, 10:18 AM	#6 (permalink)
Modshack A True Z Fanatic Join Date: Mar 2009 Location: Greenville NC Posts: 2,883 Drives: 370Z Sport Rep Power: 978	I never doubted the rated capacity of that stand. What I DON"T like is the base design that would seem to offer little lateral stability. Used on anything but an absolutely flat and stable base with absolutely NO potential of the car being nudged and you're probably OK.. I wouldn't buy those, but they are pretty..... __________________ Steal my car! (SOLD)...Now Porsche Cayman S Oil Cooler DIY: Here!

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05-19-2010, 09:13 AM	#1 (permalink)
antman22 Track Member Join Date: Dec 2009 Location: Dallas TX Posts: 597 Drives: 09 PG 370z 7AT Rep Power: 18	that's pretty impressive. i think for me, the fear wasn't in how much weight it can handle, it just seems to have a small footprint. its not likely that your car would move back and forth, but i like larger platforms with larger footprints for balance and safety.

05-19-2010, 10:15 AM	#2 (permalink)
billydsz Enthusiast Member Join Date: Aug 2009 Location: New Bern Posts: 252 Drives: 9 370z SptCp SRd 7AT Rep Power: 17	Not surprising. Column strength is very high in such a short structure. Did you do the tests at maximum height of the stand? The taller it is the easier it will buckle. However it looks as though the pin will fail before buckling anyway. The sideways stability to me would be more worrisome than the column load. Although this unit seems pretty nice to me. I think those that look down their nose at it are a little uninformed. Thanks for the interesting post.