jack stands 39''

[alberta mac]

Currently I'm working on my friends 60 series and there was some steel laying around.
I have wanted jack stands for some time but really need something kick *ss.
I designed them to go under the frame so one can work with some comfort under or over.
Base height is 22 inches and go up to 39 inches. The hss tubing is 2 inches on the inside which will accommodate a 2 inch pipe to connect all stands for stabilityl.

 

[rustybucket]

Those look dangerous. The stands can give out at the base, where there is no diagonal support. The base legs arealso to short. I would not be caught under a car or truck with those. Had a jack start to go sideways on me once and press on the corner of the plywood it was sitting on. Twisted the heck out of the jack as I puled out the last jack. So it pays to know what you are doing. A local mechanic got crushed by a truck he was supporting by stands that were to under rated for the weight they were designed to support.

 

[scrapdaddy]

Here's how I did mine.

 

[cruiserpilot]

Those look dangerous. The stands can give out at the base, where there is no diagonal support. The base legs arealso to short. I would not be caught under a car or truck with those. Had a jack start to go sideways on me once and press on the corner of the plywood it was sitting on. Twisted the heck out of the jack as I puled out the last jack. So it pays to know what you are doing. A local mechanic got crushed by a truck he was supporting by stands that were to under rated for the weight they were designed to support.

I was going to write the same thing, but unless I'm mistaken, the intent is to join all 4 stands with 2" pipe for stability. My impression is its a good idea especially since a lot of frames are 28-30" off the ground. I think he should have longer outside corner legs in the event of lateral movement.

 

[Stumpalama]

I would say triangulating from the base up would improve the lateral stability, exactly as scrapdaddy's image shows.

What are the specs on those stands scrapdaddy?

I am inclined to fab my own as well, considering they cost over $300 for a pair retail. Yours are probably less than $100 in steel per pair.

Nice work

 

[scrapdaddy]

Yeah, alot less than $100. I'll measure them up, tomorrow. I built them to hold 4x4's, that held up my 55 body.

 

[scrapdaddy]

Extended height is.. 41"
lowered height is.....31"
Feet are.................12"

I capped the ends, so mice and dirt daubers, can't get in!

I think the OP were to add some bracing, should be alright.

 

[Stumpalama]

Looks like the body is 2" x 1/8" and 1.5" x1/8" for the supports?

 

[TRAIL TAILOR]

Those are stout Ron.

I have about 20 of the Sumner 2500# folders from my pipeliner and fabshop days.. Used them for over 20 years off and on. They stand in a corner safely and are compact to boot.

They've gone up in price +/- $90.. But your LWS should give you a good discount on a few at a time.. I find these all the time at the local pawn shops for around $25 - $40 each.

http://www.toolup.com/sumner_781300...scplp1067740&gclid=COyK46GdmrsCFTJo7AodIDQAHw

J

 

[scrapdaddy]

Looks like the body is 2" x 1/8" and 1.5" x1/8" for the supports?

That is right!

 

[climber8483]

Did you use 1.5" x1/8" for the insert too?

 

[Stumpalama]

I called around to the few metal suppliers around here (Washington DC area) to price out the materials to build jackstands like scrapdaddy's.

They are all right around $190 all in (including 9 cuts to make the pieces managable) for the steel to make 4 stands. I have scrap 3/8" bar so this info is only for the square tube.

It works out to a 24' stick of 2x2x1/8 (if you can find it, my suppliers only carry it in 20' sticks, so I'd have to buy 2) and a 24' stick of 1.5x1.5x1/8.

It averages out to just over $3/ft, which seems reasonable, though I'm not all up on steel prices these days since I am just now getting back in to fabricating again.

So, at less than $50 a stand plus consumables, it is still way better than the cost from a retailer.

My specs for stands based on scrapdaddy's info for a 30" tall x 24" base jack stand:

2x2x1/8":
Base: 16 x 10" pieces (my bases will be 24" end to end)
Body: 4 x 30" pieces

1.5x1.5x1/8":
Extension: 4 x 14" (allows for 3-4" remaining in the base while extending to 40-41")
Leg braces: 16 x 14" (this makes an easy 45* cut for the braces)

 

[SpyGuy]

I was going to write the same thing, but unless I'm mistaken, the intent is to join all 4 stands with 2" pipe for stability. My impression is its a good idea especially since a lot of frames are 28-30" off the ground. I think he should have longer outside corner legs in the event of lateral movement.

Even if he connected all four with 2" pipe, it's still a dangerous design. If a lateral force is applied, those uprights will lean over and rip the welds from the base legs.