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  #11  
Old 04-21-2017, 11:37 AM
kbs2244 kbs2244 is offline
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Is there any trick to cutting left hand threads in SS?
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  #12  
Old 04-21-2017, 02:16 PM
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Default SS turnbuckles

Quote:
Originally Posted by kbs2244 View Post
Is there any trick to cutting left hand threads in SS?


Yeah, let someone else do it! my boss sourced the turnbuckles from our bolt supplier. I think they had them made for us. Was a couple weeks before we got them.

I will be adding onto the rods to get the right length needed, and then welding the cut end pieces on. The builder is going to install the ends and then measure how long I have to make the turnbuckles.

We have another big turnbuckle job in the background. 1 3/4" rods, custom made. Not going to really hold anything, but big for show only. I think those turnbuckles were $500 each or more, our cost.

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Last edited by toprecycler; 04-21-2017 at 02:23 PM.
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  #13  
Old 04-21-2017, 05:58 PM
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Quote:
Originally Posted by kbs2244 View Post
Is there any trick to cutting left hand threads in SS?
Go backwards.

Sorry, couldn't resist.

Left hand threads I've always reversed the lead screw, and cut left to right.

No real tricks for stainless, slow, good sharp tools, and decent fluid, either real good coolant or cutting oil.

Two thumb typing on a phone, as I never have time to use a computer!
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  #14  
Old 04-22-2017, 02:15 PM
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Quote:
Originally Posted by LKeithR View Post







That's a neat idea--consider it stolen! I do the same thing sometimes with a piece of packaging foam.

This is the original use for this idea. Got it from a former boss at another job.Click image for larger version

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  #15  
Old 04-24-2017, 11:18 AM
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Keith, I used insert tooling today!

Our beveler used carbide inserts. Had to chamfer the edges of the inside 1/4"x4"x4" stainless washers. Just to dress up the look. Just a slight challenge doing such small pieces.Click image for larger version

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  #16  
Old 04-24-2017, 02:10 PM
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Cleaned up and ready for contractor to install.
The longer ones have the upper washer welded in for a 2/12 pitch roof. It was fun drilling the holes in the stainless plate at this angle. I hope it fits!


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  #17  
Old 04-26-2017, 05:53 PM
JBFab JBFab is offline
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Quote:
Originally Posted by toprecycler View Post

Yeah, let someone else do it! my boss sourced the turnbuckles from our bolt supplier. I think they had them made for us. Was a couple weeks before we got them.

I will be adding onto the rods to get the right length needed, and then welding the cut end pieces on. The builder is going to install the ends and then measure how long I have to make the turnbuckles.

We have another big turnbuckle job in the background. 1 3/4" rods, custom made. Not going to really hold anything, but big for show only. I think those turnbuckles were $500 each or more, our cost.

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We deal with forged clevises and turn buckles pretty often in my line of work. We just bid on a building that uses several 4" rod braces with clevises and turnbuckles. That's 4" diameter rod, I had to consult the bible to see if such clevises and turnbuckles exist - and they do! I don't know all the details, but I know the clevises are about 90 lbs each, the "ears" of said clevises are 1 1/2" thick, and our cost for all of the clevises and turnbuckles was over $100,000. I hope we get this job!
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  #18  
Old 05-06-2017, 10:52 AM
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Default SS turnbuckles

It's revision. 4 of them needed 3/4" more thread on them. Had to chuck them in the 4 jaw chuck on the 140 year old lathe to put more thread on them. there was no slippage clamping on the rectangle shape of the flats on one end. But did have some belt slippage on the lathe motor.

Then I had to cut two of the 2/12 pitch washers off and put them back at 6/12 pitch. Would have been nice to know this in the first place.Click image for larger version

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  #19  
Old 05-12-2017, 05:05 PM
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Finally got the field dimensions and the boss told me how he wanted the shafts cut. I beveled the 1"stainless round in the lathe for welding together. I beveled down to about3/8" and then welded it back up. They stayed fairly straight, but I did tweak them a little in the press when cool,then put the shafts back in the lathe and turn the bulk of the built up weld and then buffed them in with a 4 1/2" buffer. Finished with a ceramic pad on the air grinder, and then a scotch brite pad on the air grinder, and finally with a hand scotchbrite pad. I missed a couple spots when welding, but should look good enough from the ground.

Then welded on the laser cut end pieces. Finally got these done, except the boss forgot to order the Clevis pins. Hopefully I don't have to make them tomorrow. The contractor has. Even chomping at the bit for these. Now next week, I will be under the gun to put on new stainless legs on the kitchen sink setup for this same project. I guess the state inspector is coming next week and the sink needs to be in. Nothing like waiting until the last minute. Boss still has to get the legs.Click image for larger version

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  #20  
Old 05-17-2017, 05:38 AM
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Some pics of the sink mod for this job. Have to replace the steel legs with stainless. This sink was put together with 4 different pieces by some unknown person. I guess it was holding water, but it was not pretty.Click image for larger version

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