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Benders and Bending Which bender is best? How do you use a bender? How do you calculate bends? Everything Bender related...


Benders and Bending Which bender is best? How do you use a bender? How do you calculate bends? Everything Bender related...

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  #1  
Old 11-30-2016, 04:10 PM
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akecj7 akecj7 is offline
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Join Date: Jun 2006
Location: Flagstaff, AZ
Posts: 108
My Bender DRO

Not sure if this is the right place to put this but it does pertain to tube bending and that is fabrication so here it goes (if not please move). I few months back I came across a thread of offroadfab.net where somebody made an Arduino controlled DRO (digital readout) for their tube bender and it got me thinking. Over the past few months I have tinkered, fought, and got my own version "kind of" working. In the end I would like to make my own PCB shield for the uno and put everything in a nice box.

What works:
  1. LCD
  2. LED indicators
  3. Pressure Switch and Reset Button w/LED
  4. Rotary Encoder
  5. Auto shutoff solenoid

What doesn't work:
  1. Keypad - for entering intended bend angle. Right now this is doing weird things and I don't know what or how to fix.

Below is a short video of everything as it sits today. If anybody is interested I would be more than willing to share my eagle files, Arduino code, etc.

http://www.youtube.com/watch?v=yZWtetZr6Q0

Big thanks to Adam_Gardiner and steelman for your thoughts and help.
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  #2  
Old 11-30-2016, 07:49 PM
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Adam Gardiner Adam Gardiner is offline
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Location: United Kingdom
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Excellent work, looking forward to a video of u it connected to the bender. I used switches to implement a count of +10 +1 & -0.5 degrees for the set point or desired angle as I thought it was easier than using a keypad
Adam
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  #3  
Old 11-30-2016, 08:02 PM
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TheBandit TheBandit is offline
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Join Date: Jan 2006
Location: Ventura County CA
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Congratulations! I love seeing these things come together. Great work!

On the TubeBandit DRO, I used a pair of momentary switches to increment the angle up or down. A short press would increment by 0.1deg. If you pressed and held, it would increment automatically, first slowly, then with increasing speed if you held the switch for longer. This proved to be pretty intuitive and it is not hard to code. See 1:30 of this video https://www.youtube.com/watch?v=UHHJd_QkE8o
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  #4  
Old 11-30-2016, 10:47 PM
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Rokcrler Rokcrler is offline
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Join Date: May 2006
Location: Hsv. Ala
Posts: 701
Thank you Banidt for my TubeBandit... still one of my best investments
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  #5  
Old 12-03-2016, 07:13 PM
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TheBandit TheBandit is offline
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You are quite welcome! I am sorry Tube Bandit 2 never came to fruition. Thankfully these talented folks continue innovating.
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Old 12-07-2016, 04:47 PM
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Rick_B Rick_B is offline
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Join Date: Aug 2009
Location: Queensland Australia
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my Tube Bandit is still going strong after all this time, so is the t shirt you sent Clint.

Rick
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  #7  
Old 12-20-2016, 11:27 AM
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akecj7 akecj7 is offline
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Location: Flagstaff, AZ
Posts: 108
made some changes and got things working a lot better than I did before. Now that the keypad is working good, I should be able to start re-adding the "pressure switch", zero button and reset button. Once I get everything up and running I will post another video. I also plan to share eagle files, the arduino code and a BOM so that anyone should be able to duplicate/modify to their own needs.

https://youtu.be/syX6Y_IaABY
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