building my own pullmax /poormax suficinat material thicknes

so i have i beams wich material thicknes is 3mm and they look like this

i>--<i i and i was thingking to weld two of them side by side to make the body of my pullmax so they would look like this

i>--<i
i>--<i and weld then side plates on it as well so it would have two 3mm thick walls inside and two 5 mm thick sideplades on the out side is that sturdy enough or should i use three i beams for my pullmax

 

so i have i beams wich material thicknes is 3mm and they look like this

i>--<i i and i was thingking to weld two of them side by side to make the body of my pullmax so they would look like this

i>--<i
i>--<i and weld then side plates on it as well so it would have two 3mm thick walls inside and two 5 mm thick sideplades on the out side is that sturdy enough or should i use three i beams for my pullmax

 

what the beeb is wrong with my post

 

so i have i beams wich material thicknes is 3mm
and i was thingking to weld two of them side by side to make the body of my pullmax so they would look like this II
and weld then side plates on it as well so it would have two 3mm thick walls inside and two 5 mm thick sideplades on the out side is that sturdy enough or should i use three i beams for my pullmax

 

Would love to see your work in Picture's !!!!!

 

well killed my camera and it is all just in my head and i still have not found the usb port on my forhead , butt as soonj as i start cutting i will take pics and post

 

Thank's fellow !!! I'm the same way sometimes. LOL

 

3mm is .118", which is less than 1/8" (.125). I'm NOT an expert, but I'm thinking that's pretty thin for a pullmax.

 

I'll keep hoping for forehead USB! You might be on to something there.

 

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i>--<i
i>--<i
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but when i weld the beams to gether and ad the side plates it is in tottal 16 mm thick

 

Ditto

 

I suggest joining us at ALLMETALSHAPING.COM. You will probably getting better answers there.I know a few guys on the site and i think even the original designer of the shop built pullmax is on the site.I personally have the real deal so i cant say to much but 1/8 is too thin.

 

The thickness that you should use is dependent on what you are going to do with the machine. Most of the Pullmax's are rated for shearing a certain thickness of plate. If you are considering shearing 5/16" plate; which is the capacity of the Pullmax P9, you might want to use 1.250" steel plate for each side plate

A Pullmax P1 will shear 10 gage steel. A Pullmax P9 will shear 5/16" steel. If you are just going to be shearing sheet metal, then you can get by with something a lot less.

If you are just planning to use it for sheet metal, then you could probably get by with 1/2" (12.7mm or thicker) thick steel plate for each side plate.

You could check www.metalmeet.com