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Old 11-09-2022, 10:41 PM
JP_in_STL JP_in_STL is offline
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Default Purlin Cups or Chairs? Source

I'm building a little 24x24 carport to park the truck under. I was going to buy some steel pole barn trusses I see all over FB Marketplace, but they are 4-8hrs drive each way. I've got some time between jobs and about 20 sticks of light gauge 2x2 square thats been on the rack for years so I may just build them? I saw these nice J-Style Purlin Cups to hold a wood 2x6 on top of a steel truss. I can't seem to find 12ga 1.75x4+in tubing to split and get 2 cups. Best I could find was 1.75x1.75 square.

I've also got a bunch of 12ga sheet scraps. Figure I can cut 4.5in strips and gang cut them to length on the bandsaw. I bought a BullDozer Die for the Hossfeld as I don't have a metal brake or press. I figure I need 70 Cups. IS there a way to rig a depth stop/gauge on the BullDozer Die?

Any reasonable source for Purlin Cups or is it overkill and just cut a stub of 2x4 uneven angle?
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Old 11-09-2022, 10:57 PM
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milomilo milomilo is offline
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I would just get some truss clips and weld them to your steel truss. They only run about $1.50.
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Old 11-10-2022, 08:32 AM
JP_in_STL JP_in_STL is offline
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https://www.amazon.com/gp/product/B08DG5NLJB/
These are about $3ea, which is not crazy.

Or do you mean something like this Simpson Tie and just weld them on?
https://www.strongtie.com/hurricanet...hm9_htie/p/hm9
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Old 11-10-2022, 09:51 AM
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camdigger camdigger is offline
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As a word of warning, the Simpson tie products are galvanized, so the usual warnings wrt avoiding fumes while welding apply.
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Old 11-10-2022, 10:01 AM
JBFab JBFab is offline
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Quote:
Originally Posted by JP_in_STL View Post
I'm building a little 24x24 carport to park the truck under. I was going to buy some steel pole barn trusses I see all over FB Marketplace, but they are 4-8hrs drive each way. I've got some time between jobs and about 20 sticks of light gauge 2x2 square thats been on the rack for years so I may just build them? I saw these nice J-Style Purlin Cups to hold a wood 2x6 on top of a steel truss. I can't seem to find 12ga 1.75x4+in tubing to split and get 2 cups. Best I could find was 1.75x1.75 square.

I've also got a bunch of 12ga sheet scraps. Figure I can cut 4.5in strips and gang cut them to length on the bandsaw. I bought a BullDozer Die for the Hossfeld as I don't have a metal brake or press. I figure I need 70 Cups. IS there a way to rig a depth stop/gauge on the BullDozer Die?

Any reasonable source for Purlin Cups or is it overkill and just cut a stub of 2x4 uneven angle?
I made a scaled down version of the hossfeld bender. I also made a stop that goes on the circle that I can put anywhere on the circle to bump up against - I'm thinking you could do the same with the bulldozer die as long as the arm crosses the circle in some spot at full bend.
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Old 11-10-2022, 10:52 AM
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Quote:
Originally Posted by JP_in_STL View Post
https://www.amazon.com/gp/product/B08DG5NLJB/
These are about $3ea, which is not crazy.

Or do you mean something like this Simpson Tie and just weld them on?
https://www.strongtie.com/hurricanet...hm9_htie/p/hm9
Either way will work. A little flap sanding wheel will remove the galvanized as needed.
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Old 11-10-2022, 06:24 PM
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6-8 inches of angle, bolt hole at each end
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Old 11-15-2022, 07:07 PM
JP_in_STL JP_in_STL is offline
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Ok I bent up a sample J Style Cup. Was actually pretty easy to bend the 90ยบ on the Hossfeld with the BullDozer Die. I think I'm going to drill through the Die body, put some threaded rod through it perpendicularly, and make an adjustable depth stop for 1-5/8in. So feed the blank through, pull the 1st bend, feed again, and pull the 2nd bend. Will take a couple to get it right, but should go pretty quick. Will post pics in a few days.
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