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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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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 |
#2
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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 |
#3
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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 |
#4
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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 |
#5
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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 - |
#6
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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 |
#7
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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 |
#8
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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 |
#9
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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 |
#10
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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 |
#11
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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 |
#12
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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 |
#13
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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 |
#14
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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 |
#15
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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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