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Another tubing bender (G. Britnell clone)

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cidrontmg:
Hi Bernd,
I believe the brass dies will be up to their task with flying colours, for copper as well as brass tubing. The smaller roller just "wraps" the free tubing end around the bigger stationary bending block. Any possible deformation would come from the tubing, trying to widen the groove - there´s no way I see that happening. And if contrary to expectations that would happen, I can always make new rolls, from something stiffer  :)
I made the needed parts for 2, 4 and 6 mm tubing, I did the grooves with a rotary table and mill, the way Bogstandard suggested in another tubing bender post. An excellent, fast method to get the size just right.
I also tweaked the plans a little, made an extra cut to all bending blocks, I think that way there´s no chance of the bushing through which the tubing enters the bender from moving, not even a little.
Also I made some extra long screws from allthread, with large "knurled" heads, and another large "knurled" nut to the lever screw. These 3 screws are quite fiddly to adjust with a spanner or a key, they should be finger-adjusted, IMHO. I hope G. Britnell approves  :D
Couple more pics of the change parts for different tubing sizes, and the screws in place

johnny123:
Very nice! :headbang:

Stilldrillin:
Beautiful work!  :thumbup:

Something else I haven`t done.....  ::)

David D

swhite:
Outstanding!

Steve W

GArat:

Hi cidrontmg 
Anyway the project is well done! Good Job  and I did mine in cast iron and I did metric AutoCAD drawings discovering a little mistake on the original drawing... :D :D, if someone is interested, yours looks much nicer!
Cheers, Paolo
 
 
 

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