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TUBE ROLLER BUILD, UPDATE 1/24/12, post 71 NEW pics

Captainfab said:
So you need to find someone to turn a 1.500 Acme thread for you? I could probably find someone up here to do that, but the logistics of it may make it prohibitive.
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No, the shaft is a 1.500-5 acme threaded shaft. I need one end turned down to .999 to 1.000, to fit in that tapered roller bearing, X 3.00 back from the end. Then 1.375 of that length from the end threaded with 1-14 standard fine thread with a class 2 fit or better is fine. Standard chamfer on the end for a 1.0 thread. Fillet rad @ the 3.0 face .030 max. The 1.0 diameter must be concentric as close as possible to the 1.500 shaft itself, and the surface finish has to be pretty nice since it's a bearing diameter. The OD of the 1.500 shaft is a really nicely machined finish and must be protected and not dinged or mashed or marred.

On the other end I want a standard 1 1/4 hex machined to drive it, machined about 7/8 to 1 inch in length. I can actually get that done myself. It's mainly the lathe work I can't do. I just figured if I have a shop do it, might as well have them just complete both ends. Thas it. Pretty simple job I could do in my sleep if I had the right equipment. I actually have one 24 inch length of shaft but I can cut it in two and only need one 12" shaft machined up. Thats it. Easy job to do. It's just all the shops don't want to do such a small job.
 
should have left it at the first shop.. what's 2 more weeks? Ya ain't got no time anyway...
 
Out of the kindness of his heart one of the members on OFN, Clint (CaptainCNC) has offered to machine the part I need to have machined for me. So, today I just shipped the 1.500 ACME shaft to him for machining. Totally awesome for him to offer to do this for me. I'm excited to get this back going. I was stalled on it because of not being able to get the shaft turned. So now I'm back in the game. Thanks Clint!!! :laugh:
 
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I'm happy to hear you got someone to help you out on machining that shaft. Yeah Clint's a good guy for sure. It's people like Clint that restore your faith that there's still some goodness in the world.

I didn't realize Clint was a member here, I've only seen him on OFN.
 
Captainfab said:
I'm happy to hear you got someone to help you out on machining that shaft. Yeah Clint's a good guy for sure. It's people like Clint that restore your faith that there's still some goodness in the world.

I didn't realize Clint was a member here, I've only seen him on OFN.
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Actually, I thought he was, I think I had him mistaken for you, lol! no big deal. You screen names are similar, and I just don't pay attention like I should :crazy: :haha:
 
Have a little update. Got this message from CaptainCNC on OFN, the guy who offered to machine a part for my tube roller.

Quote:

Package arrived today. Already have program written and tools in machine. Just waitin on this aluminum job to finish up and i'll toss it in there and turn it up fer ya. Then over to the mill to do the hex during lunch possibly or after work. I'll try to get it outta here this week if i can. Then i'll get it on it's way back home to ya. :D

End Quote.


I'm STOKED BIG TIME!!!! :laugh::laugh::laugh: Cant wait to get it back and this build coming together finally.
 
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I'm ready for you to be done as well, ready to see it in action, still a little confused about how it's going to work. Is the center roller going to push towards the two stationary rollers to bend the tube? Draw a picture or something for the slow kids.:doah::haha:
 
mr.smartass said:
I'm ready for you to be done as well, ready to see it in action, still a little confused about how it's going to work. Is the center roller going to push towards the two stationary rollers to bend the tube? Draw a picture or something for the slow kids.:doah::haha:
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You got it right. The center roller gets jack screwed down just a little at a time, each time you adjust the center roller you roll the tube thru one time where you want the tube to be arched, or the entire length of tube if you want it completely arched.
 
Ok cool, I was just a little confused because it doesn't look like the center roller goes down very far between the two stationary ones, but I guess it's not for sharp bends, just arching tube eh?
 
Update: CAPTAINCNC from OFN got my parts finished up and on it's way home to me!! I'm stoked big time. can't wait to get them and finish this up! Totally cool guy to even offer to do this for me. For free even, but I'm gonna send some cash his way, it's the least I could do.


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Very Cool :saweet:

Clint always seemed to me to be a good guy.....kudos to you Clint :thumb:

I'll be anxiously awaiting the next progress update........
 
Cool. That's our bread and butter kind of work at the shop I'm at and I'm always surprised when guys come in after going to some of the big name shops around town and they get turned down for small jobs like that.
 
UPDATE: 1/5/12

So one of the things I've really wanted to get back into working on once my health was better is my tube rolling machine build. I finally got a power source for cheap. It's a Harbor Freight pipe threading power tool. With discounts I got about 35% off. Paid $98+ tax instead of 150+ tax. I picked up a couple of sprockets & Heavy Duty chain for a good deal, and now just about have what I need to run this thing. I still need to machine the side plates on the saddle for the pressure roller to 1.500.

Going to machine an adapter that is similar to the thread cutting cage that holds the four threading blades. OG will have the same Octagonal shape so it fits into the power drive unit just like the threading cage does. The ID will be a hex shape to fit one of the shafts to drive the rollers. That shaft will have a 1 1/4 hex machined on to one end of the shaft and will be driven by the adapted and power drive unit. It will also have a 3/8 keyway internal too so I can set screw it to the keyway.

I can then roll tube. Couple other things I want to do, One is to put a remote switch in the cord of the power drive unit so I don't have to stand at the power drive unit and monitor it. Only thing I'll have to do at the power unit is flick it into the reverse direction to continue rolling.

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Another upgrade I may do it convert it to hydraulic power. I bought a used small 5 ton bottle jack for $10 bucks and can addapt it to my bender and replace the ball screw to give the down force for rolling. This will require some new parts to be machined and made but will make for a much easier way to give the pressure required by just a pump of the handle. And, by converting it to hydro I can gain more capacity out of the rolling machine because I can get more up stroke out of the jack based on how I make the conversion side plates. Right now I'm only using about 1/2 the up stroke the Aluminum side plates allow. You can see in the fourth pic above I'm at max upward stroke, but the Aluminum side plates are slotted much more then that.

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Very happy to hear you are feeling better Rob, and even getting back on this project :thumb:

I've always liked a hydraulic operated pressure die as opposed to mechanical. I guess now would be the time to make a change, but you have so much work into the mechanical setup. I guess you could always use it on something else.
 
Captainfab said:
Very happy to hear you are feeling better Rob, and even getting back on this project :thumb:

I've always liked a hydraulic operated pressure die as opposed to mechanical. I guess now would be the time to make a change, but you have so much work into the mechanical setup. I guess you could always use it on something else.
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Thanks, yes it feels SO freakin good to get back to some kind of normal world and wanting to and feeling up to fabricating, engineering, planning and all that. My mind just wasn't up to it for a long time. Now I have a huge craving for getting back to all my projects. I figured this would be a fairly easy one to dive back into first, and cost the least. If it wasn't for the OT at work I would NOT be doing this. It's kind of my Christmas gift to myself for surviving cancer :smile1:. Hell I think I've certainly earned it based on that.

Yeah I did put alot of work into the mechanical pressure setup, anf that kind of bums me out and I would have machined the Aluminum plates completely different had I originally wanted to go Hydro, but as you know the old saying, Hind sight is 20/20. Now I have to do kind of like the Swag Off Road setup and "Add" side plates to be able to use the bottle jack. I'm going to try and do it in such a manor that IF I decide I don't like it and want to go back to the mechanical setup I will be able to do so without any difficulty.

The good aspect of the conversion is how much capacity it will open up for different material shapes and sizes, where as the mechanical is limited to a certain degree. It WILL do more then I will ever use it for but I like having the ability to do more, even if I never do. At least that option is available.
 
Rob the bottle jack works extremely well, I helped a buddy setup his HF tube roller with it and it works great. He too had put some work into a mechanical one that worked alright but the jack works so much better.

Its how I am going to setup mine
 
Yeah, I figure it's the way to go. I just didn't think about it when I was first building it. It would have saved me bearing and threaded shaft costs and the bronze threaded shaft bushing too, and all that machine work and time. Thats the stuff that wasn't cheap. The plate I used I had enough material to make larger side plates to accomidate the jack setup from the start. That material was free too darnit. Oh well, at least it's getting converted now and will be much better. I'm going to use it like it is until I get all the parts for the conversion done. I have to at least try it and see how well it works.
 
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