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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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  #21  
Old 02-09-2017, 06:03 PM
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Omg I can't believe this 😡Got my jd2 packages yesterday they sent the incorrect CLR Die
Nothing but problems buying this tube bending stuff 😔
When I put a piece of tube into the main die there is quite a definite light gap at the bottom of the tube against the die but it's nice and snug in the backing block is this right?? Before they send out the new die just seems to be more of a light gap compared to the pro tools die
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  #22  
Old 02-27-2017, 05:06 PM
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So I got my jd2 die yesterday after a couple week wait as they sent the wrong one and had to return it
Set it all up to calibrate for bend tech and its marking the tube just like the pro tools
No where near as bad the pro tools one was gouging it with the backing block jd seems to be scratching it with the top of the main die, I went background with the angle gauge and checked everything was 100% square and level which it was think I'm going to have to take it off the hydraulic unit and try it manually anyone have any ideas?
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  #23  
Old 02-27-2017, 05:22 PM
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I noticed in this video you previously posted that the back of the tube traveled past the backing block starting at 8 seconds. This reduces the contact area on the tube and can significantly increase the contact pressure. Can you confirm you aren't doing this with your practice bends?

https://www.youtube.com/watch?v=_wg5NFVfX4M#t=8s
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  #24  
Old 02-27-2017, 05:44 PM
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No defiantly haven't done that again. Iv measured and it takes me 400mm of tube from my reference mark to the end of the backing block to make a 90deg bend so I always ensure I have sufficient tube to run through the backing block so that never happened again
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  #25  
Old 02-27-2017, 06:28 PM
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[IMG]<iframe width="480" height="360" src="http://s1376.photobucket.com/user/Dave_Ducas/embed/slideshow/"></iframe>[/IMG]
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  #26  
Old 02-27-2017, 06:35 PM
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http://s1376.photobucket.com/user/Dave_Ducas/embed/slideshow/"></iframe>
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  #27  
Old 02-27-2017, 06:43 PM
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  #28  
Old 02-27-2017, 06:45 PM
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[/quote]
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  #29  
Old 02-27-2017, 06:46 PM
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The mark is where my finger is running around the bend and the top pic of the die its that edge making the mark
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  #30  
Old 03-01-2017, 01:24 AM
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Metric vs imperial tube vs die dimensions perhaps?
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  #31  
Old 03-01-2017, 01:51 AM
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38mm tube ordered the 38mm tube die (1.5") I know other local guys have the exact same die and using same tube
I have a feeling as the ram is extending it maybe putting to much weight on the drive arms Or maybe the angle the ram is driving out on, I have a support on the end of the ram body to take the weight of the ram maybe this isn't enough will be interesting to see when I try it with just the Rachet arms hopefully my stand is heavy enough and won't move when I lock the casters is to give it a try
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  #32  
Old 03-01-2017, 11:01 AM
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You will need to bolt your stand to the floor or to a very heavy table.
No way will locked casters allow you to bend a 38 mm tube.
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  #33  
Old 03-01-2017, 07:50 PM
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sorry to tell you but i have 6 of jd2 dies i use alot and if that mark is only on the top and not on the bottom as well, the die is not right. it looks like the top edge was not machined correctly. my bender is setup on full hydro close to the same as yours
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  #34  
Old 03-01-2017, 08:23 PM
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Can someone post a pic of what the tube looks like in the main die so I can see how snug it sits in view looking from front through the hole in the tube if it was strapped in il post pic of mine tonight I don't think it sits as snug as the pro tools die but seems to do a nicer bend
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  #35  
Old 03-02-2017, 05:36 AM
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  #36  
Old 03-02-2017, 05:39 AM
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TKH Is this the top edge you are referring to there is a lip that runs around the top of the die
Can anyone else confirm if this should be there or should it be exact the same as the bottom
I just done another test this time fully cleaned up the tube with some scotch brite and lunricated the backing block there was a line on the bottom of the bend nothing that would concern me but again a scratched/ gouge around the top of the tube I reakon would be on that exact point where that lip is.
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  #37  
Old 03-02-2017, 07:19 AM
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From the new pic the top of the die looks to match the bottom so it's not that. the other pic looked to have a square edge on it that would cause that mark
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  #38  
Old 03-02-2017, 06:58 PM
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The top of the die does have a lip that runs around it I can feel it it is kinda square definitely not round like the bottom
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  #39  
Old 03-03-2017, 03:56 PM
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As far as I know the top edge of the die should be exactly the same as the bottom. If the top edge has a burr, it sounds like someone at JD2 didn't finish their job of smoothing that edge. Have you contacted JD2 about this?
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  #40  
Old 03-03-2017, 05:55 PM
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Yea I have contacted them sent some pics of the tube they thought
it's the backing block then sent pic of the die 3 days ago with the pic of the lip in the die Iv had no response sent another email yesterday still nothing.
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