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Bob Engelhardt August 25th 10 11:58 PM

How to make a scroll?
 
"Scroll" as in the decorative curlicue element in a "wrought iron"
fence. I need to replace (match) 2 missing ones. I have a loose one to
use as a pattern.

They will be made of 3/16" x 1/2" mild steel. The largest diameter is
6" & there are about 1-1/2 turns. After a 1/2 turn the diameter
decreases by 1/2 (is that a standard for scrolls?).

Should I heat them? (I have a propane foundry burner that I can cobble
into a forge.) If so, how hot?

Will I need forms to bend against? If so, is there a rule of thumb for
the spring back to account for (hot, cold)?

Any tips about stuff that I don't even know enough to ask about?

Thanks,
Bob

Jim Wilkins August 26th 10 12:52 AM

How to make a scroll?
 
On Aug 25, 6:58*pm, Bob Engelhardt wrote:
"Scroll" as in the decorative curlicue element in a "wrought iron"
fence. *I need to replace (match) 2 missing ones. *I have a loose one to
use as a pattern.

They will be made of 3/16" x 1/2" mild steel. *The largest diameter is
6" & there are about 1-1/2 turns. *After a 1/2 turn the diameter
decreases by 1/2 (is that a standard for scrolls?).

Should I heat them? *(I have a propane foundry burner that I can cobble
into a forge.) *If so, how hot?

Will I need forms to bend against? *If so, is there a rule of thumb for
the spring back to account for (hot, cold)?

Any tips about stuff that I don't even know enough to ask about?

Thanks,
Bob


This is for making scrolls on the HF Compact Bender:
http://www.harborfreight.com/scroll-...ent-36621.html

I'd cold bend the curves somewhat tight and open short sections up to
match the original with a rubber hammer on an anvil.

jsw

Ned Simmons August 26th 10 01:16 AM

How to make a scroll?
 
On Wed, 25 Aug 2010 18:58:09 -0400, Bob Engelhardt
wrote:

"Scroll" as in the decorative curlicue element in a "wrought iron"
fence. I need to replace (match) 2 missing ones. I have a loose one to
use as a pattern.

They will be made of 3/16" x 1/2" mild steel. The largest diameter is
6" & there are about 1-1/2 turns. After a 1/2 turn the diameter
decreases by 1/2 (is that a standard for scrolls?).

Should I heat them? (I have a propane foundry burner that I can cobble
into a forge.) If so, how hot?

Will I need forms to bend against? If so, is there a rule of thumb for
the spring back to account for (hot, cold)?

Any tips about stuff that I don't even know enough to ask about?


A bending fork:
http://tinyurl.com/2u3j3jq

Unless the beginning is a tight radius or forged to a taper you should
be able to do it all cold.

--
Ned Simmons

Steve B[_10_] August 26th 10 02:10 AM

How to make a scroll?
 

"Bob Engelhardt" wrote in message
...
"Scroll" as in the decorative curlicue element in a "wrought iron" fence.
I need to replace (match) 2 missing ones. I have a loose one to use as a
pattern.

They will be made of 3/16" x 1/2" mild steel. The largest diameter is 6"
& there are about 1-1/2 turns. After a 1/2 turn the diameter decreases by
1/2 (is that a standard for scrolls?).

Should I heat them? (I have a propane foundry burner that I can cobble
into a forge.) If so, how hot?

Will I need forms to bend against? If so, is there a rule of thumb for
the spring back to account for (hot, cold)?

Any tips about stuff that I don't even know enough to ask about?

Thanks,
Bob


Let me look in my shop. I believe I have a scroll bender that said scrolls
would take about 4 minutes to make. The max thickness they can do is 1/8".

Steve




engineman August 26th 10 02:34 AM

How to make a scroll?
 
WOW, that archive from popular science brought back memories.
Back in the late 40's as a barefoot teenagers on bicycles my friends
and I were able to go to the local chemical supply house and buy
whatever we could afford.
We bought nitric acid, hydroflouric acic, bromine, phosphourus,
sodium, potassiuum chlorate, potassium dichromate, potassium nitrate
and other goodies.
The good old days are gone.
Engineman

On Aug 25, 5:16*pm, Ned Simmons wrote:
On Wed, 25 Aug 2010 18:58:09 -0400, Bob Engelhardt





wrote:
"Scroll" as in the decorative curlicue element in a "wrought iron"
fence. *I need to replace (match) 2 missing ones. *I have a loose one to
use as a pattern.


They will be made of 3/16" x 1/2" mild steel. *The largest diameter is
6" & there are about 1-1/2 turns. *After a 1/2 turn the diameter
decreases by 1/2 (is that a standard for scrolls?).


Should I heat them? *(I have a propane foundry burner that I can cobble
into a forge.) *If so, how hot?


Will I need forms to bend against? *If so, is there a rule of thumb for
the spring back to account for (hot, cold)?


Any tips about stuff that I don't even know enough to ask about?


A bending fork:http://tinyurl.com/2u3j3jq

Unless the beginning is a tight radius or forged to a taper you should
be able to do it all cold.

--
Ned Simmons- Hide quoted text -

- Show quoted text -



Larry Jaques[_3_] August 26th 10 01:54 PM

How to make a scroll?
 
On Wed, 25 Aug 2010 20:16:35 -0400, Ned Simmons
wrote:

On Wed, 25 Aug 2010 18:58:09 -0400, Bob Engelhardt
wrote:

"Scroll" as in the decorative curlicue element in a "wrought iron"
fence. I need to replace (match) 2 missing ones. I have a loose one to
use as a pattern.

They will be made of 3/16" x 1/2" mild steel. The largest diameter is
6" & there are about 1-1/2 turns. After a 1/2 turn the diameter
decreases by 1/2 (is that a standard for scrolls?).

Should I heat them? (I have a propane foundry burner that I can cobble
into a forge.) If so, how hot?

Will I need forms to bend against? If so, is there a rule of thumb for
the spring back to account for (hot, cold)?

Any tips about stuff that I don't even know enough to ask about?


A bending fork:
http://tinyurl.com/2u3j3jq

Unless the beginning is a tight radius or forged to a taper you should
be able to do it all cold.


I especially appreciated the "Fun with Quicksilver" article in the PS
mag link you gave us, Ned. Try that today! ;)

P.S: Students in suits & ties with vests were a treat, too. I love
having all this info available online.

--
Not merely an absence of noise, Real Silence begins
when a reasonable being withdraws from the noise in
order to find peace and order in his inner sanctuary.
-- Peter Minard

Bob Engelhardt August 29th 10 09:19 PM

How to make a scroll?
 
Jim Wilkins wrote:
This is for making scrolls on the HF Compact Bender:
http://www.harborfreight.com/scroll-...ent-36621.html


The idea of getting a new tool-toy is not to be scoffed at, but I'm only
making 2 of these.

I'd cold bend the curves somewhat tight and open short sections up to
match the original with a rubber hammer on an anvil.


The stock is really too stiff for that, even if I had a anvil.

Thanks,
Bob

Bob Engelhardt August 29th 10 09:29 PM

How to make a scroll?
 
Ned Simmons wrote:
A bending fork:
http://tinyurl.com/2u3j3jq


Thanks - I didn't do it their way, but knowing the term "bending fork"
got me to a bunch of sites. I eventually made a fork with 2, 1/2" pegs
set 3/16" apart in a 3/4" sq rod. And a similar bending wrench with a
2' handle.

Unless the beginning is a tight radius or forged to a taper you should
be able to do it all cold.


I was able to do most of it cold, but did use an OA torch on the tight
curves. If I had it to do over, I would set up a propane forge - it
bends SO much more easily hot.

Thanks,
Bob

Steve B[_10_] August 30th 10 05:10 AM

How to make a scroll?
 

"Bob Engelhardt" wrote in message
...
Jim Wilkins wrote:
This is for making scrolls on the HF Compact Bender:
http://www.harborfreight.com/scroll-...ent-36621.html


The idea of getting a new tool-toy is not to be scoffed at, but I'm only
making 2 of these.

I'd cold bend the curves somewhat tight and open short sections up to
match the original with a rubber hammer on an anvil.


The stock is really too stiff for that, even if I had a anvil.

Thanks,
Bob


You must be using 3/16" stock, right? The 1/8" bends with the HF bender.
It makes you wonder how the ones you have were made. Either with a strong
machine, or by a talented ironworker.

Steve



Steve B[_10_] August 30th 10 05:13 AM

How to make a scroll?
 

"Bob Engelhardt" wrote in message
...
Ned Simmons wrote:
A bending fork:
http://tinyurl.com/2u3j3jq


Thanks - I didn't do it their way, but knowing the term "bending fork" got
me to a bunch of sites. I eventually made a fork with 2, 1/2" pegs set
3/16" apart in a 3/4" sq rod. And a similar bending wrench with a 2'
handle.

Unless the beginning is a tight radius or forged to a taper you should
be able to do it all cold.


I was able to do most of it cold, but did use an OA torch on the tight
curves. If I had it to do over, I would set up a propane forge - it bends
SO much more easily hot.

Thanks,
Bob


I have used a bending fork when making "pictures" within a frame for a
ornamental metal gate. You lay out your drawing, or just free form it, and
bend it as you go along. Most of the stuff is very gradual bends, so it is
very easy. The hard part was to get everything flat, so eventually, I got a
4' square piece of plate, and drilled and tapped some holes where I could
move the two bolts around for convenience. As you say, one of those propane
burners make things go a lot faster, you just have to be careful.

Steve



Bob Engelhardt August 30th 10 03:34 PM

How to make a scroll?
 
Steve B wrote:
You must be using 3/16" stock, right? The 1/8" bends with the HF bender.
It makes you wonder how the ones you have were made. Either with a strong
machine, or by a talented ironworker.


Mine are 3/16 and there's a huge difference in bending force compared to
1/8. I practiced on 1/8, 'cause I didn't have any 3/16 to spare, and
was surprised when I tried to do the 3/16.

The ones that I'm matching were factory made & there they can bend anything.

Bob

Larry Jaques[_3_] August 30th 10 05:12 PM

How to make a scroll?
 
On Sun, 29 Aug 2010 21:10:05 -0700, "Steve B"
wrote:


"Bob Engelhardt" wrote in message
...
Jim Wilkins wrote:
This is for making scrolls on the HF Compact Bender:
http://www.harborfreight.com/scroll-...ent-36621.html


The idea of getting a new tool-toy is not to be scoffed at, but I'm only
making 2 of these.

I'd cold bend the curves somewhat tight and open short sections up to
match the original with a rubber hammer on an anvil.


The stock is really too stiff for that, even if I had a anvil.

Thanks,
Bob


You must be using 3/16" stock, right? The 1/8" bends with the HF bender.
It makes you wonder how the ones you have were made. Either with a strong
machine, or by a talented ironworker.


Or a blacksmith?
If you heat it, you can bend the stuff fairly easily.

--
Happiness comes of the capacity to feel deeply, to enjoy
simply, to think freely, to risk life, to be needed.
-- Storm Jameson

Steve B[_10_] August 31st 10 05:45 AM

How to make a scroll?
 

"Bob Engelhardt" wrote in message
...
Steve B wrote:
You must be using 3/16" stock, right? The 1/8" bends with the HF bender.
It makes you wonder how the ones you have were made. Either with a
strong machine, or by a talented ironworker.


Mine are 3/16 and there's a huge difference in bending force compared to
1/8. I practiced on 1/8, 'cause I didn't have any 3/16 to spare, and was
surprised when I tried to do the 3/16.

The ones that I'm matching were factory made & there they can bend
anything.

Bob


I have seen the 3/16" and even thicker done on machines. It's spendy. And
I have seen some very nice ones done in a hand forge.

Steve

read about heart surgery and how to prepare for it at:
http://cabgbypasssurgery.com



Steve B[_10_] August 31st 10 05:46 AM

How to make a scroll?
 


Or a blacksmith?
If you heat it, you can bend the stuff fairly easily.


Bending it is simple. Getting the final piece to look like what you want it
to look like is the hard part.

Steve

read about heart surgery and how to prepare for it at:
http://cabgbypasssurgery.com



[email protected] August 31st 10 08:05 AM

How to make a scroll?
 
On Aug 30, 10:45*pm, "Steve B" wrote:
"Bob Engelhardt" wrote in message

...

Steve B wrote:
You must be using 3/16" stock, right? *The 1/8" bends with the HF bender.
It makes you wonder how the ones you have were made. *Either with a
strong machine, or by a talented ironworker.


Mine are 3/16 and there's a huge difference in bending force compared to
1/8. *I practiced on 1/8, 'cause I didn't have any 3/16 to spare, and was
surprised when I tried to do the 3/16.


The ones that I'm matching were factory made & there they can bend
anything.


Bob


I have seen the 3/16" and even thicker done on machines. *It's spendy. *And
I have seen some very nice ones done in a hand forge.

Steve

read about heart surgery and how to prepare for it at:http://cabgbypasssurgery.com


Apparently this:
http://www.hossfeldbender.com/bender...r-standard.php
used to be the standard for bending stuff. My dad used to rave about
what they did with one at the sulky plant, they had all the dies.
Probably our auction-enabled guys can turn one up for 50 cents
somewhere in somebody's back room, with all the dies, too.

Stan


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