Mini Tube bender.

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When I first built my tubing bender it was a variation of Mr. Clarke's design. Almost all the benders I see use a round roller for the chasing roller (my terminology). I found that if the tubing was too soft or too hard it would leave an impression where the roller stopped. I changed my design to use rectangular blocks (with a round groove) to do the rolling. This left a nice smooth surface at the end of the bend. I had posted the drawing on this forum but I thing they were of the first design. I drew it in Imperial but also have the same thing in Metric. Anyone wishing to have a copy please let me know.
 
When I first built my tubing bender it was a variation of Mr. Clarke's design. Almost all the benders I see use a round roller for the chasing roller (my terminology). I found that if the tubing was too soft or too hard it would leave an impression where the roller stopped. I changed my design to use rectangular blocks (with a round groove) to do the rolling. This left a nice smooth surface at the end of the bend. I had posted the drawing on this forum but I thing they were of the first design. I drew it in Imperial but also have the same thing in Metric. Anyone wishing to have a copy please let me know.
yes i would like a copy please. i have the other one and dont like it much.....
 
When I first built my tubing bender it was a variation of Mr. Clarke's design. Almost all the benders I see use a round roller for the chasing roller (my terminology). I found that if the tubing was too soft or too hard it would leave an impression where the roller stopped. I changed my design to use rectangular blocks (with a round groove) to do the rolling. This left a nice smooth surface at the end of the bend. I had posted the drawing on this forum but I thing they were of the first design. I drew it in Imperial but also have the same thing in Metric. Anyone wishing to have a copy please let me know.
George, I’d like a copy too, thanks
Karl
 
When I first built my tubing bender it was a variation of Mr. Clarke's design. Almost all the benders I see use a round roller for the chasing roller (my terminology). I found that if the tubing was too soft or too hard it would leave an impression where the roller stopped. I changed my design to use rectangular blocks (with a round groove) to do the rolling. This left a nice smooth surface at the end of the bend. I had posted the drawing on this forum but I thing they were of the first design. I drew it in Imperial but also have the same thing in Metric. Anyone wishing to have a copy please let me know.
I'd like a copy as well, please!
 
In 'Propper' (Full Size industrial) tube bending, what George has described and used is called a 'Wiper Die'. Not needed for normal plumbing and brake tube applications but a definite advantage for our 'Appearance' parts.

Regards Ian.
 
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I can back up what George and Ian say. I made a small one with wiper dies, though I did not know that was what they are called. It works well. One surprise was just how tight the bearing clamp bolt needs to be

2015-10-03_Coolant_Pipes_01.jpg
 
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And don't forget, no matter what tricks we get up to, there IS a minimum internal bend radius for tubes. If you need to go tighter you're into Electro-forming.

Regards Ian.
 
When I first built my tubing bender it was a variation of Mr. Clarke's design. Almost all the benders I see use a round roller for the chasing roller (my terminology). I found that if the tubing was too soft or too hard it would leave an impression where the roller stopped. I changed my design to use rectangular blocks (with a round groove) to do the rolling. This left a nice smooth surface at the end of the bend. I had posted the drawing on this forum but I thing they were of the first design. I drew it in Imperial but also have the same thing in Metric. Anyone wishing to have a copy please let me know.
I would love to have a set of the plans.
Many thanks!
 
I saw someone bending 1/2" and 3/4" copper tubing into smaller coils; I forget the application.

They filled the tubes with water, froze the water, and the tubes bent easily around a pipe without kinking.



.
 
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