Re: [CAD_CAM_EDM_DRO] Press brake auto back stops - DRO / Accuracy

Look at this:
http://www.ascendancy-software.co.za/products/pressbrake/index.php
The situation as I see it is not a problem in building an
adjustable controlled backstop , but is knowing where to set it for
work with different material conditions. Empirically this can be
accomplished, but for one off jobs without set losses as you seem to
desire is another story.
jesse

On Apr 5, 2006, at 11:37 AM, Darren Lucke wrote:

The main thing I need is an accurate back stop so that
the slippage, etc can be repeatable (and square w/ ram
- dies). I would make a pressbrake that would have a
top ram movement in vertical rather than box and pan
style. My parts would be quantity of this or that and
would be nice to be able to repeat the length of the
bend (adjust a few thousandths one way or the other in
order to achieve length where I need).
Darren Lucke

--- Andy Wander <awander@...> wrote:

> I am concerned that no matter how accurate your back
> gage, the amount of
> slippage of the metal may actually be the thing that
> determines your
> repeatability.
>
> What thickness of what type of metal do you need to
> bend? And do you
> need to make boxes, or simple bends only?
>
>
>
> ________________________________________
> Andy Wander | Vice President, Engineering
>
> -----Original Message-----
> From: CAD_CAM_EDM_DRO@yahoogroups.com
> [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf
> Of oneluckeboy
> Sent: Wednesday, April 05, 2006 11:54 AM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Press brake auto back
> stops - DRO / Accuracy
>
> Anyone ever make an auto back stop for a press
> brake? Just curious if
> anyone had and what construction method they had
> maybe used? I'm
> considering making a small press brake for bending
> metal as the local
> shop takes ~FOREVER~ to do pieces for me. It'd sure
> beat waiting.
> Looking at something with DRO and accurate
> movements.. ie backstop move
> to 4.050" from 2.250" and back again or some such
> for bending small
> brackets, gussets, etc every other bend. I would
> like to see something
> w/ resolution - accuracy around .010" or less as
> long as it would be
> repeatable?
> Darren Lucke
>
>
>
>
>
>
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