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Tubing bender
sbwhart:
Nice one Ralph :thumbup:
Ther's a few bits on their I havn't seen before or was I asleep some time:- can you sleep surf the net :scratch:
Any way keep up the good work looking forward to seeing those spinning balls.
Stew
Divided he ad:
--- Quote ---That's looking very shiny Ralph.....
--- End quote ---
Yep! It is a little.... But I haven't polished any of it yet..... just a bit of emery :)
--- Quote ---Ther's a few bits on their I havn't seen before or was I asleep some time:- can you sleep surf the net
--- End quote ---
Seen before at all.... Probably because I made a few bits to my own design/tastes! ..... But that's what your meant to do with plans right? Change tham to suit you! :dremel:
Sleep surfing.... Well I usually fall asleep while surfing! I'm obviously working too hard.... Or staying up too late.... Or getting old!!! Maybe a little of all three!?
--- Quote ---Any way keep up the good work looking forward to seeing those spinning balls.
--- End quote ---
What! I haven't got a party trick! :scratch: :lol:
All good things Stew, all good things :)
Ralph.
ozzie46:
Nice work Ralph or should I say good play time instead of "work" :thumbup:
Ron
Divided he ad:
Thank you Ron. "Play time" ....Stress relief in my book! Good tunes and machinery.... Takes away all those niggling thoughts about everyday life :med:
Speaking of which.....
Got a little done tonight... Still got the base and a few bits to experiment with but....
The first, larger roll.
The two rolls for todays test.... Didn't even measure the dia! Just wanted one larger than the other :)
Right. The set up for cutting the relief for the tube. I couldn't quite remember what John said about the height of the cutter so, I put my cell to work and figured that if it was just slightly above centre then it would cut with the face of the end mill and then when the RT was turned the other way it would take off any slight ridges and leave a nice finish.... I used my mill stop to make sure that the two cuts lined up once mounted in the main tool. Seemed to work to plan anyhow! :thumbup:
Direction of rotation of the part was clockwise as you face the chuck (part moving upwards as turned) This shows the first 0.25mm cut coming round.
Then a shot of the large roll just about there. The last clockwise cut was followed by a rotation anti-clockwise to clean off any small grooves left by my turning of the RT handle.
The view from the side. See how the mill stop lighty touches the face.... I know it's in the right place :) (sounds obvious but... To get the big roll in and up to the stop which can't be moved ....Cause it's a stop! I just opened the chuck jaws much wider than the roll size and slid it in between the sides of the jaws then held it steady while I closed the jaws and held it lightly to the stop.)
The rolls ready for use. If your wondering why the masive height of the rolls.... They will have another relief cut into the top half too.... Multi use (Idea a la Boggie!) I recon I could do upto 10mm anealed copper tubing in this..... Might try it one day?
And to prove it works.... Even if I haven't made the base bit or the end of the handle....
And the reason for the various roll sizes..
Well that's it till at least Thursday evening.... But I'm happy :D
Ralph.
bogstandard:
Nice one Ralph :clap: :clap:
It looks like it works really well.
I have the cutter slightly lower than centre (only say 1/2mm), otherwise you won't get the true depth of groove from touching on. I have the roller turning so that the roller is being fed from the cutter bottom towards the top.
I also made a mandrel to put the rollers on in the RT. So you just cut one groove, flip it over end to end, change cutter size and cut the next groove. That way they will all be perfectly in line with each other.
Also, if you are only ever bending soft copper and brass, the rollers could be made from something as soft as ali. I used brass for mine, and show no signs of damage or wear.
Now wasn't that an easy tool to make?
I think this design must be the easiest one to make, but is actually a lot more versatile than some of the more complicated ones.
Again, nice job
Bogs
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