?s on making a pull pal
Post Fiend
Joined: Jul 2003
Posts: 11,945
Likes: 3
From: Spokane, WA
Well it obviously won't anchor you like a tree but depending on the soil type you're working with I can see it digging well enough to give you several hundred pounds of pull which is often times all it will take to get a truck moving again.
Postmaster
Joined: Jul 2003
Posts: 2,711
Likes: 2
From: Pittsburgh
Allright, here goes.
http://www.pullpal.com/aboutPP.html
these numbers are based off of the third picture down, a sideshot of the 11,000 model.
The arm all the way on the right is 45" long.
The left arm is 24" long.
The center strut is 35".
The strut attaches to the left arm 8.75" from the pivot.
The strut attaches to the right arm 35" from the pivot.
That enough to get everyone started?
Justin
EDIT: Now lets take this to the next level. The long arm and the strut are 2" wide, the short arm is about 3" wide. That means ~7/9 of the total length is 2", 2/9 is 3", so that's an average width of 2 1/4". If this thing weighs 50 lbs like they say (the 14k model), that's 50LBS/9'=5.5 lbs/foot. A solid steel bar with dimensions of 1.5"x2.25" is 5.5lbs/ft
. This is a hefty mother. Alot more so tahn i previously thought.
http://www.pullpal.com/aboutPP.html
these numbers are based off of the third picture down, a sideshot of the 11,000 model.
The arm all the way on the right is 45" long.
The left arm is 24" long.
The center strut is 35".
The strut attaches to the left arm 8.75" from the pivot.
The strut attaches to the right arm 35" from the pivot.
That enough to get everyone started?
Justin
EDIT: Now lets take this to the next level. The long arm and the strut are 2" wide, the short arm is about 3" wide. That means ~7/9 of the total length is 2", 2/9 is 3", so that's an average width of 2 1/4". If this thing weighs 50 lbs like they say (the 14k model), that's 50LBS/9'=5.5 lbs/foot. A solid steel bar with dimensions of 1.5"x2.25" is 5.5lbs/ft
. This is a hefty mother. Alot more so tahn i previously thought.
Last edited by hoxiii; Aug 3, 2004 at 11:38 PM.
Elder User
Joined: Feb 2004
Posts: 787
Likes: 1
From: Stephenville, TX
Originally Posted by hoxiii
Yeah, but in the sand it's alot less work to bury your spare tire than in the dirt. Granted a pull-pal is even easier, but ya gotta do what ya gotta do. 
Justin
Justin
A pull pal shouldnt be that hard to make, and it would be a heck of alot cheaper to make it yourself.
Postmaster
Joined: Jul 2003
Posts: 2,711
Likes: 2
From: Pittsburgh
N/M on the size of the material, 2.25x.75 is 5.5 lbs/foot. forgot a step in there. So actually 3 pieces of 1/4 sandwiched together would be perfect. . . plus an easy way to make a pivot. 
No problem fishy, just helping where i can
Justin
No problem fishy, just helping where i can
Justin
Last edited by hoxiii; Aug 4, 2004 at 12:29 AM.
Postmaster
Joined: Jul 2003
Posts: 2,711
Likes: 2
From: Pittsburgh
I'm scaling the picture. They say it's 45" folded, so that means the longest arm (right arm) is 45" long. In the picture it's 1 15/16" long, so 45"/1 15/16"=23.226" in real life per inch in the picture. I then just took measurements in inches at the picture and multiplied them by 23.226 to get the actual dimensions.
The weight was a bit more complicated. I added the length of all of the pieces together and came up with approximately 9' of material. 7/9 of it is 2", 2/9 is 3", so added ((2x7)+(2x3))/9 to get an average width of 2.25". Steel has a density of approximately .283 lbs/cubic inch. SO 9'x12"=108"x2.25"xXinches width. If it weighs 50 lbs, 50/.283=176.678 cubic inches
::SO::108x2.25xX=176.678
243X=176.678
176.678/243=.72", close enough to 3/4.
The math works, but it's 1am so "easy to read" isn't really in my vocabulary right now
If you can't tell i'm going to be a freshman engineering student in about 2 weeks.
Justin
The weight was a bit more complicated. I added the length of all of the pieces together and came up with approximately 9' of material. 7/9 of it is 2", 2/9 is 3", so added ((2x7)+(2x3))/9 to get an average width of 2.25". Steel has a density of approximately .283 lbs/cubic inch. SO 9'x12"=108"x2.25"xXinches width. If it weighs 50 lbs, 50/.283=176.678 cubic inches
::SO::108x2.25xX=176.678
243X=176.678
176.678/243=.72", close enough to 3/4.
The math works, but it's 1am so "easy to read" isn't really in my vocabulary right now
If you can't tell i'm going to be a freshman engineering student in about 2 weeks.
Justin
Last edited by hoxiii; Aug 4, 2004 at 12:45 AM.
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Logistics Pro
Joined: Jan 2002
Posts: 3,739
Likes: 3
From: GANS
I'm all for making junk, but personally, I think I'd pony up the $500 bux for this one. There isn't too many things worse than having something break and having 50lbs of plate coming thru your windshield (or tailgate, for that matter).
Post Fiend
Joined: Jul 2003
Posts: 11,945
Likes: 3
From: Spokane, WA
Originally Posted by bremen242
I'm all for making junk, but personally, I think I'd pony up the $500 bux for this one. There isn't too many things worse than having something break and having 50lbs of plate coming thru your windshield (or tailgate, for that matter).
It seems like a LOT of money for something so basic. There are no special parts here, just tubing and an anchor head welded together.
Logistics Pro
Joined: Jan 2002
Posts: 3,739
Likes: 3
From: GANS
Originally Posted by ivanribic
True Bremen, but I don't see any more danger in building one of these than building your own lift or steering or anything else. If you've got the fab skills you can do it and if you don't then you should stay away from the welder. It seems like a LOT of money for something so basic. There are no special parts here, just tubing and an anchor head welded together.
It seems like a LOT of money for something so basic. There are no special parts here, just tubing and an anchor head welded together.
Lead Driver
Joined: May 2000
Posts: 9,236
Likes: 12
From: Senoia, GA
Originally Posted by Franken-Truck
You can probably pick up a large used Danforth anchor for less than that. Shoot, probably pick up 2 and use a cable and pulley between them and be just as effective.
bremen, you ever need something welded let me know...i am certified stick welder and working on MIG/TIG!
-cutts-