I built a bending jig, inspired by the Frank Ford wire bending jig. I went overboard but that is another story.
In building a Maytag 1/2 scale engine, it calls for a part that is from 1/4" brass tubing bent at a 51 degree angle. I look at the wire bending jig and realize it will work if I revamped it to use a bar to bend with and make the pressure plate and holding parts. So I do.
A web search indicates 2.5 times the diameter of the tube is the minimum bending radius. Another site indicated this with a 35 thou thick wall. So I make the form with a 1" diameter and proceed with the bend. I get some ovality but not enough to make another form. My tube is brass with a 18 thou thick wall.
I would like to find a chart similar to the one at:
http://www.wintonmachine.com/details.php?prod_id=44
for model tubing such as the brass tubing I used. Actually any charts for any small tubing would be useful for the future projects.
Thanks, - Reed
In building a Maytag 1/2 scale engine, it calls for a part that is from 1/4" brass tubing bent at a 51 degree angle. I look at the wire bending jig and realize it will work if I revamped it to use a bar to bend with and make the pressure plate and holding parts. So I do.
A web search indicates 2.5 times the diameter of the tube is the minimum bending radius. Another site indicated this with a 35 thou thick wall. So I make the form with a 1" diameter and proceed with the bend. I get some ovality but not enough to make another form. My tube is brass with a 18 thou thick wall.
I would like to find a chart similar to the one at:
http://www.wintonmachine.com/details.php?prod_id=44
for model tubing such as the brass tubing I used. Actually any charts for any small tubing would be useful for the future projects.
Thanks, - Reed