Laser guide for press brake in DropBox
 

I added a laser guide to my press brake:
http://www.metalworking.com/dropbox/LaserGuide.pdf

Please excuse the on topic post.

Bob

Laser guide for press brake in DropBox
 

"Bob Engelhardt" wrote in message
...
I added a laser guide to my press brake:
http://www.metalworking.com/dropbox/LaserGuide.pdf

Please excuse the on topic post.

Bob

Thats neat - I like the pdf presentation too.

Laser guide for press brake in DropBox
 

On Wed, 13 Jan 2010 22:32:27 -0500, Bob Engelhardt
wrote:

I added a laser guide to my press brake:
http://www.metalworking.com/dropbox/LaserGuide.pdf

Please excuse the on topic post.

Bob

Cool!

Laser guide for press brake in DropBox
 

On 2010-01-14, Bob Engelhardt wrote:
I added a laser guide to my press brake:
http://www.metalworking.com/dropbox/LaserGuide.pdf

A neat idea.

Note that there are tiny cartridges available with the laser
diode and the line generator (which appears to simply be some small
round glass rods stacked side by side. This is present both in the one
which I have, and in the slide-on line generator in my laser level. It
should be possible to make one for use with a laser pointer.

The cartridge has the advantage of a lot less hanging out to be
damaged -- and easier to build a protective housing around in any case.

The search used below was for "laser line generator".

For an example of the cartridge, take a look at eBay auction
#150378954644 (green line).

#180453928361 gives you a red line -- but way too much power, I
think (90-100 mW). It is in China, FWIW, while the green one is in
California.

And here is one like what I have -- at 5 mW it is noticeably
safer. They are asking $15.00 for buy-it-now. #360166294361

Please excuse the on topic post.

I think that we'll excuse it -- this time. :-)

Enjoy,
DoN.

--
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---

Laser guide for press brake in DropBox
 

"DoN. Nichols" wrote in message
...
On 2010-01-14, Bob Engelhardt wrote:
I added a laser guide to my press brake:
http://www.metalworking.com/dropbox/LaserGuide.pdf

A neat idea.

Note that there are tiny cartridges available with the laser
diode and the line generator (which appears to simply be some small
round glass rods stacked side by side. This is present both in the one
which I have, and in the slide-on line generator in my laser level. It
should be possible to make one for use with a laser pointer.

The cartridge has the advantage of a lot less hanging out to be
damaged -- and easier to build a protective housing around in any case.

The search used below was for "laser line generator".

For an example of the cartridge, take a look at eBay auction
#150378954644 (green line).

#180453928361 gives you a red line -- but way too much power, I
think (90-100 mW). It is in China, FWIW, while the green one is in
California.

And here is one like what I have -- at 5 mW it is noticeably
safer. They are asking $15.00 for buy-it-now. #360166294361

Please excuse the on topic post.

I think that we'll excuse it -- this time. :-)

Enjoy,
DoN.

--
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---




Interesting, so looking from the side the line generators are like this?


oooo CIRCULAR BEAM oooo OOOOO --- LINE OUT ------

^^^^^
Row of n rod lenses

Laser guide for press brake in DropBox
 

On Jan 13, 10:32*pm, Bob Engelhardt wrote:
I added a laser guide to my press brake:http://www.metalworking.com/dropbox/LaserGuide.pdf

Please excuse the on topic post.

Bob

Isn't there a law against adding a laser to a harbor-freight
product ;)


Is that the A-frame 20-ton press? I bought that one for doing subaru
wheel bearings.

I'm glad I got the 20.

Dave

Laser guide for press brake in DropBox
 

"Bob Engelhardt" wrote in message
...
I added a laser guide to my press brake:
http://www.metalworking.com/dropbox/LaserGuide.pdf

Please excuse the on topic post.

Bob


!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Now this is why I read RCM. Here's an idea I need and hadn't thought of.
KISS and does the job.

Thanks

Karl

Laser guide for press brake in DropBox
 

Royston Vasey wrote:

(...)

Interesting, so looking from the side the line generators are like this?


oooo CIRCULAR BEAM oooo OOOOO --- LINE OUT ------

^^^^^
Row of n rod lenses

Have a look at the single acrylic rod in the second illustration of:
http://hacknmod.com/hack/3d-scanner-make-your-own/

As noted elsewhere, the line width appears much wider in the photo
than it is in actuality because of the long exposure times necessary
to photograph without a flash.

--Winston

--
Machining can only occur between one Catholic and one Bridgeport.

Other people and machines can continue to enjoy their hobby within
a Mechanical Partnership but to protect our fine tradition, they
must be prevented from actually Machining. To grant them the ability
to Machine would ruin this traditional institution for Catholics,
Bridgeports and everyone and everything else.

Do we think that a Unitarian and her Deckel has any valid claim to
the freedom and sanctity of Machining? Of course not!
We cannot risk validating this gravely unjust pairing; to
recognize it would send the wrong message to our precious youth.
Who knows how many young lives have been utterly ruined because
of the non-procreative destruction of perfectly acceptable surfaces by
non-Catholics using non-Bridgeports?

No other form can be considered as an equivalent to this natural
relationship between a Catholic and a Bridgeport out of whose love
tools are born.

Join me to protect the unique social and legal status of Machining
for everyone in the 21st century!

Laser guide for press brake in DropBox
 

On Jan 13, 10:32*pm, Bob Engelhardt wrote:
I added a laser guide to my press brake:http://www.metalworking.com/dropbox/LaserGuide.pdf

Please excuse the on topic post.

Bob

That's a good idea and nicely done.

It would be less practical on a 30" shear/brake/roll because the
handle is hard to reach from the far end. I add marks offset 9mm (or
3/8") from the bend and align them with the edge of the lower die.
That's plenty accurate for the usual job, like the roof snow rake I
just made, which skates over the raised screw heads on a corrugated
roof.

The back gage stops it came with don't work well. I replaced the rods
with 12mm shafts threaded a loose 1/2-13 so nuts spin freely on them
and coast a ways. The rods are shorter to decrease the space the
machine takes up. The longer originals still work.

Here's a way to make quick-release nuts with a custom thread pitch:
http://picasaweb.google.com/KB1DAL/T...03579451053314
http://picasaweb.google.com/KB1DAL/T...03580026966178

You can clamp the two halves firmly together in the mill vise to tap
the threads. The Bridgeport style of pushbutton sliding nut should be
easy to make, but as you can see doesn't fit a Clausing

jsw

Laser guide for press brake in DropBox
 

On Jan 14, 8:39*am, Jim Wilkins wrote:
On Jan 13, 10:32*pm, Bob Engelhardt wrote:

I added a laser guide to my press brake:http://www.metalworking.com/dropbox/LaserGuide.pdf

Please excuse the on topic post.

Bob

That's a good idea and nicely done.

It would be less practical on a 30" shear/brake/roll because the
handle is hard to reach from the far end. I add marks offset 9mm (or
3/8") from the bend and align them with the edge of the lower die.
That's plenty accurate for the usual job, like the roof snow rake I
just made, which skates over the raised screw heads on a corrugated
roof.

The back gage stops it came with don't work well. I replaced the rods
with 12mm shafts threaded a loose 1/2-13 so nuts spin freely on them
and coast a ways. The rods are shorter to decrease the space the
machine takes up. The longer originals still work.

Here's a way to make quick-release nuts with a custom thread pitch:http://picasaweb.google.com/KB1DAL/T...03580026966178

You can clamp the two halves firmly together in the mill vise to tap
the threads. The Bridgeport style of pushbutton sliding nut should be
easy to make, but as you can see doesn't fit a Clausing

jsw

I like your flare nut wrench: http://picasaweb.google.com/KB1DAL/T...55378162487314

Laser guide for press brake in DropBox
 

"Denis G." wrote in message
...
On Jan 14, 8:39 am, Jim Wilkins wrote:
On Jan 13, 10:32 pm, Bob Engelhardt wrote:

I added a laser guide to my press
brake:http://www.metalworking.com/dropbox/LaserGuide.pdf

Please excuse the on topic post.

Bob

That's a good idea and nicely done.

It would be less practical on a 30" shear/brake/roll because the
handle is hard to reach from the far end. I add marks offset 9mm (or
3/8") from the bend and align them with the edge of the lower die.
That's plenty accurate for the usual job, like the roof snow rake I
just made, which skates over the raised screw heads on a corrugated
roof.

The back gage stops it came with don't work well. I replaced the rods
with 12mm shafts threaded a loose 1/2-13 so nuts spin freely on them
and coast a ways. The rods are shorter to decrease the space the
machine takes up. The longer originals still work.

Here's a way to make quick-release nuts with a custom thread
pitch:http://picasaweb.google.com/KB1DAL/T...03580026966178

You can clamp the two halves firmly together in the mill vise to tap
the threads. The Bridgeport style of pushbutton sliding nut should be
easy to make, but as you can see doesn't fit a Clausing

jsw

I like your flare nut wrench:
http://picasaweb.google.com/KB1DAL/T...55378162487314

Yeah, Jim makes some pretty cool things, too...check out the bucket
attachment!

Laser guide for press brake in DropBox
 

"Bob Engelhardt" wrote in message
...
I added a laser guide to my press brake:
http://www.metalworking.com/dropbox/LaserGuide.pdf

Please excuse the on topic post.

Bob

Very nice, Bob..

Laser guide for press brake in DropBox
 

On Jan 14, 11:54*am, "Rick" wrote:
"Denis G." wrote in message
..

I like your flare nut wrench:http://picasaweb.google.com/KB1DAL/T...55378162487314
Yeah, Jim makes some pretty cool things, too...check out the bucket
attachment!-

Thanks.
Now if I could only keep everything working.....

jsw

Laser guide for press brake in DropBox
 

On Jan 14, 11:10*am, Jim Wilkins wrote:
On Jan 14, 11:54*am, "Rick" wrote:

"Denis G." wrote in message
..

I like your flare nut wrench:http://picasaweb.google.com/KB1DAL/T...55378162487314
Yeah, Jim makes some pretty cool things, too...check out the bucket
attachment!-

Thanks.
Now if I could only keep everything working.....

jsw

I recently replaced two brake lines on an 83 Ford van so that tool
might have come in handy. Usually I use vise grips if the nut is
really bad and then I have to replace it. I might copy your wrench or
maybe modify some vise grips to have a hex holder. Many times you're
also constrained by space to get a good hold of the nut.

Laser guide for press brake in DropBox
 

On Jan 14, 1:35*pm, "Denis G." wrote:
....
I recently replaced two brake lines on an 83 Ford van so that tool
might have come in handy. *Usually I use vise grips if the nut is
really bad and then I have to replace it. *I might copy your wrench or
maybe modify some vise grips to have a hex holder. *Many times you're
also constrained by space to get a good hold of the nut.

If you don't need to save the brake line just cut it off short and use
a 6 point socket. I had to make the wrench after distorting the flare
nut too much to get anything else onto it.

jsw

Laser guide for press brake in DropBox
 

Dave__67 wrote:
Is that the A-frame 20-ton press? I bought that one for doing subaru
wheel bearings.

Mine is the H-frame, not for any particular reason. Probably because it
was on sale.


I'm glad I got the 20.

Me too. I have bent a 20" piece of 14 ga & it took using a 3' piece of
pipe as a pump lever. No way would I have done on less than 20 T.

Bob

Laser guide for press brake in DropBox
 

On 2010-01-14, Royston Vasey wrote:

"DoN. Nichols" wrote in message
...
On 2010-01-14, Bob Engelhardt wrote:
I added a laser guide to my press brake:
http://www.metalworking.com/dropbox/LaserGuide.pdf

A neat idea.

Note that there are tiny cartridges available with the laser
diode and the line generator (which appears to simply be some small
round glass rods stacked side by side. This is present both in the one
which I have, and in the slide-on line generator in my laser level. It
should be possible to make one for use with a laser pointer.

[ ... ]

Interesting, so looking from the side the line generators are like this?


oooo CIRCULAR BEAM oooo OOOOO --- LINE OUT ------

^^^^^
Row of n rod lenses

Nope -- more like this:

O
O
oooo CIRCULAR BEAM oooo O --- LINE OUT ------
O
O

It doesn't seem to matter just where the beam hits the plane of rods.
And I've seen some which have a second plane of rods at right angles to
the first one (not overlapping) to produce a cross-hair. Sort of like
this (laser's view, not side view like the above):

===| || |
====| || ||
=====| || || |
====| || ||
===| || |

Rod ends cut to form a rough circle for fitting into the holder.

Enjoy,
DoN.

--
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---

Laser guide for press brake in DropBox
 

"DoN. Nichols" wrote in message
...
On 2010-01-14, Royston Vasey wrote:

"DoN. Nichols" wrote in message
...
On 2010-01-14, Bob Engelhardt wrote:
I added a laser guide to my press brake:
http://www.metalworking.com/dropbox/LaserGuide.pdf

A neat idea.

Note that there are tiny cartridges available with the laser
diode and the line generator (which appears to simply be some small
round glass rods stacked side by side. This is present both in the one
which I have, and in the slide-on line generator in my laser level. It
should be possible to make one for use with a laser pointer.

[ ... ]

Interesting, so looking from the side the line generators are like this?


oooo CIRCULAR BEAM oooo OOOOO --- LINE OUT ------

^^^^^
Row of n rod lenses

Nope -- more like this:

O
O
oooo CIRCULAR BEAM oooo O --- LINE OUT ------
O
O

It doesn't seem to matter just where the beam hits the plane of rods.
And I've seen some which have a second plane of rods at right angles to
the first one (not overlapping) to produce a cross-hair. Sort of like
this (laser's view, not side view like the above):

===| || |
====| || ||
=====| || || |
====| || ||
===| || |

Rod ends cut to form a rough circle for fitting into the holder.

Enjoy,
DoN.

--
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---


Thanks Don (& Winston), neat, there's lots of interesting stuff to learn
hey!

Laser guide for press brake in DropBox
 

If the brake line needs to be cut off to get the line nut free, and a
6-point socket doesn't work, an Irwin extractor socket will very likely get
the line nut out.

http://www.irwin.com/irwin/consumer/...rwinProd100512

--
WB
..........
metalworking projects
www.kwagmire.com/metal_proj.html



"Jim Wilkins" wrote in message
...
On Jan 14, 1:35 pm, "Denis G." wrote:
....
I recently replaced two brake lines on an 83 Ford van so that tool
might have come in handy. Usually I use vise grips if the nut is
really bad and then I have to replace it. I might copy your wrench or
maybe modify some vise grips to have a hex holder. Many times you're
also constrained by space to get a good hold of the nut.

If you don't need to save the brake line just cut it off short and use
a 6 point socket. I had to make the wrench after distorting the flare
nut too much to get anything else onto it.

jsw

Laser guide for press brake in DropBox
 

On Jan 15, 2:55*am, "Wild_Bill" wrote:
If the brake line needs to be cut off to get the line nut free, and a
6-point socket doesn't work, an Irwin extractor socket will very likely get
the line nut out.

http://www.irwin.com/irwin/consumer/...prodId=IrwinPr....

--
WB

Thanks, I hadn't seen those.

Mine was slow to make but the 6-sided compression left the brake line
fitting reuseable afterwards, though I replaced the line. I made
another larger one to remove the hollow nut that connects the EGR tube
to the exhaust manifold.

jsw

Laser guide for press brake in DropBox
 

Bob Engelhardt wrote:

I added a laser guide to my press brake:
http://www.metalworking.com/dropbox/LaserGuide.pdf

Please excuse the on topic post.


Because you are a nice guy, we will let you off lightly this time. Nice!

A while back I had a .62 underhammer that shot too far to the left or was it right. It
looked terrible. Front site on one side of barrel, rear, on opposite side.

We tried bending it by clamping the barrel over two blocks one near the muzzle and the
other near the breach using a strap clamp to bend it in the middle. To gage what we were
doing, we put a laser level on a flat pointing out the garage to a big sheet of cardboard
across the yard. That way we could keep ratcheting up how much we bent it followed by
relaxing it looking for a set. It didn't work, I was afraid we would pull the tee slot
out of my bridgeport table before the barrel bent. Ended up clocking the barrel, plugging
the dovetails for sights and cutting new dovetails 90 degrees rotated.

Wes
--
"Additionally as a security officer, I carry a gun to protect
government officials but my life isn't worth protecting at home
in their eyes." Dick Anthony Heller

Laser guide for press brake in DropBox
 

On Jan 13, 9:32*pm, Bob Engelhardt wrote:
I added a laser guide to my pressbrake:http://www.metalworking.com/dropbox/LaserGuide.pdf

Please excuse the on topic post.

Bob

ON TOPIC POST!?!?!?!

;)

Good job.

Do you have pictures of the dies you made for the press brake option
you made for the press?

We would love to see them.

Thanks

TMT

Laser guide for press brake in DropBox
 

Too_Many_Tools wrote:
Do you have pictures of the dies you made for the press brake option
you made for the press? ...

I was going to do a small write up, but that might not happen, so
here's a couple of pix that I posted before - gives you an idea.

http://home.comcast.net/~bobengelhardt/brake1.jpg
http://home.comcast.net/~bobengelhardt/brake2.jpg
http://home.comcast.net/~bobengelhardt/PressDie.jpg

Basically, I used what I had around.

Spaco has a web page of his adaptation.

Bob