Well frame is mostly together albeit not fully welded in parts but enough so I can do a mock up of how the mechanical and electrical components will fit.
This is no joke weight wise and the overhead gantry crane I built in my shop several years ago has well and truly paid for itself and saved my back heaps.
Cadflat Tube Bender Project.
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Re: Cadflat Tube Bender Project.
Your shop is a dream. Congratulations!
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Sent from my iPhone using Tapatalk
Owner of the same Patrol since 1967
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Re: Cadflat Tube Bender Project.
My frame was rotated to stand on the wheels and electric motor with reduction gearbox is also installed now.
I need to calculate a sprockets size to mate with an existing sprocket that I have that came with one of the other components. Just trying to keep the expenses down but shoot for a 2 rpm final output speed.
Sorry for the side mounted picture but I could not get it to load upright.
I need to calculate a sprockets size to mate with an existing sprocket that I have that came with one of the other components. Just trying to keep the expenses down but shoot for a 2 rpm final output speed.
Sorry for the side mounted picture but I could not get it to load upright.
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Re: Cadflat Tube Bender Project.
I finally scored the right sprocket combination and chain to link the two gearboxes together.
Typically no correct hole size in the sprocket, so I had to machine it out and hand cut another internal keyway from scratch.
I am kinder becoming an expert at doing keyways now without all the fancy equipment.
I am just not willing to pay the kind of coin wanted by machine shops to do them for me.
Anyway, I have drive to the output shaft now.
I was shooting for 2 rpm and unloaded I have 2.75 rpm which I am happy with for now.
Typically no correct hole size in the sprocket, so I had to machine it out and hand cut another internal keyway from scratch.
I am kinder becoming an expert at doing keyways now without all the fancy equipment.
I am just not willing to pay the kind of coin wanted by machine shops to do them for me.
Anyway, I have drive to the output shaft now.
I was shooting for 2 rpm and unloaded I have 2.75 rpm which I am happy with for now.
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Re: Cadflat Tube Bender Project.
No pictures to show yet, but I have settled on a slight design change.
As the current unit stands, it has a limitation on being able to perform a secondary bend where the tube needs to point downwards as the bench/table is in the way.
On many other units I've seen this is corrected by having the final drive arms kind of cantilevered over the edge of the table providing some space around the unit to handle about a 40 inch length of tube that could be directed towards toward the floor if a 2nd bend is required (depending on bend combination and configuration), so taking this possibility into account, I decided to bite the bullet now and build into my machine that additional feature.
Easier to do it now than to have 2nd thoughts later and try modifying it then...
So now, I am looking for flange bearings, more chain and another sprocket.
As the current unit stands, it has a limitation on being able to perform a secondary bend where the tube needs to point downwards as the bench/table is in the way.
On many other units I've seen this is corrected by having the final drive arms kind of cantilevered over the edge of the table providing some space around the unit to handle about a 40 inch length of tube that could be directed towards toward the floor if a 2nd bend is required (depending on bend combination and configuration), so taking this possibility into account, I decided to bite the bullet now and build into my machine that additional feature.
Easier to do it now than to have 2nd thoughts later and try modifying it then...
So now, I am looking for flange bearings, more chain and another sprocket.
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Re: Cadflat Tube Bender Project.
Slow progress as usual, but still heading in the right direction.
As part of my redesign. I discovered that I would need to lower the height of my large reduction gearbox in the frame.
Fortunately, something told me when I started this project that I should include multiple holes in the support plates holding this large gearbox.
I have dropped it one set of holes and have been waiting to get hold of the extra bearings I seek.
I now have the 2" flange and bearing which will give me a 3rd bearing on the main output shaft, which I have decided on just to take some of the load off the old original bearings in the gearbox.
Now I have the 2" bearing here at home and needed to run the shaft and hold a file on it to clean the shaft and get the bearing to fit, I find that I will need to drop my gearbox down an additional hole if I want the bearing to sit below the table top height of the frame.
I guess it beats having to cut a hole in the top for the bearing to stick thru.
I was not able to source flange bearings easily locally (imperial stuff in some sizes is hard to come by) for the addition shaft and sprocket that I will be adding into the cantilever final drive, so I have ordered them on Ebay and now just need to wait for the mail man.
As always, one adjustment has an affect on other things, so now I find my chain is too long as the gearbox has been moved closer to the motor. Rather than shortening the chain, I have an idler sprocket and hope to use that to adjust the tension on the chain and keep my options open.
The other task I managed to complete was to install the 2nd hand sprocket I had given to me onto the 2" output shaft and make a odd kind of key to work with both the shaft and the sprocket.
Sorry about my pic's but I got to say loading pic's on this site is troublesome for me compared to other Forums I belong to.
As part of my redesign. I discovered that I would need to lower the height of my large reduction gearbox in the frame.
Fortunately, something told me when I started this project that I should include multiple holes in the support plates holding this large gearbox.
I have dropped it one set of holes and have been waiting to get hold of the extra bearings I seek.
I now have the 2" flange and bearing which will give me a 3rd bearing on the main output shaft, which I have decided on just to take some of the load off the old original bearings in the gearbox.
Now I have the 2" bearing here at home and needed to run the shaft and hold a file on it to clean the shaft and get the bearing to fit, I find that I will need to drop my gearbox down an additional hole if I want the bearing to sit below the table top height of the frame.
I guess it beats having to cut a hole in the top for the bearing to stick thru.
I was not able to source flange bearings easily locally (imperial stuff in some sizes is hard to come by) for the addition shaft and sprocket that I will be adding into the cantilever final drive, so I have ordered them on Ebay and now just need to wait for the mail man.
As always, one adjustment has an affect on other things, so now I find my chain is too long as the gearbox has been moved closer to the motor. Rather than shortening the chain, I have an idler sprocket and hope to use that to adjust the tension on the chain and keep my options open.
The other task I managed to complete was to install the 2nd hand sprocket I had given to me onto the 2" output shaft and make a odd kind of key to work with both the shaft and the sprocket.
Sorry about my pic's but I got to say loading pic's on this site is troublesome for me compared to other Forums I belong to.
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Re: Cadflat Tube Bender Project.
Still waiting for the mailman, so I decided make a trolley for my recently purchased metal cutting bandsaw.
It is just too heavy and bulky and probably wont be used regularly, so I figured that it would be nice to store it away.
Nothing fancy but it works a treat.
More soon.
It is just too heavy and bulky and probably wont be used regularly, so I figured that it would be nice to store it away.
Nothing fancy but it works a treat.
More soon.
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Re: Cadflat Tube Bender Project.
That trolley looks great and it looks the the band saw is sitting very close to the floor.
Congratulations.
Congratulations.
Owner of the same Patrol since 1967