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| Tips, Techniques, and Questions -- Technical questions or tips |
2009-06-08, 9:34pm
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Senior Member
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Join Date: Jun 10, 2005
Location: Huntington Beach CA
Posts: 2,554
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I want to do it right the first time.
So, I made these arm rests and used them for the first time today. They needed to be clamped to my table. Now I need to permanently secure the joint closest to the base. I want to do it right the first time. They ended up working best with the arm rest surface much closer to the table.
These are the helping hands. So I think the parts are steel. What do you think is the best way to freeze the bottom joint?
Some options I have
1) I have a "little torch" and silver solder
2) I have a soldering iron and the type of solder used to make stained glass windows.
3) Use some kind of glue. (what kind?)
4) take it to a welding shop to have it tac welded.
5) any idea you have that you know will work
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Michelle
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2009-06-09, 1:30am
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picking Job's Tears
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Join Date: Jan 27, 2009
Location: Hilo, Hawaii
Posts: 6,825
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Soldering on steel (with a soldering iron) doesn't work very well, but that's the only one of those that I've tried.
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Aloha, Maren - HiloBeads:
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Palms Etc. tropical seeds and cuttings:
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HotHead on bulk propane and a Glasshive kiln
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2009-06-09, 7:12am
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Senior Member
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Location: Huntington Beach CA
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I didn't think it would either. I don't think it would ever get the steel hot enough.
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Michelle
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2009-06-09, 8:07am
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when in doubt, add a dot
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Join Date: Jul 15, 2008
Location: St. Louis MO
Posts: 142
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Michelle I use armrests much like yours. I bought mine. They have a steel plate on the base of the armrest welded to a hollow tube that is bent in a U shape. The edge of the armrest rests on the table top and the u shape catches under the table. They stay on by gravity. That could work for you, unless you need them to be higher than your table.
Jaquetta
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2009-06-09, 8:29am
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Senior Member
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No Jaquetta they don't need to be higher. They actually needed to be as low as I could get them. At this time part of their stability is having one of the top joint resting on my table. Is there a chance you have a picture of what you are talking about?
Here is how they are sitting right now.
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Michelle
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2009-06-09, 8:44am
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Senior Member
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Join Date: Nov 21, 2008
Location: Herndon, VA
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Hi Michelle - If you want to try soldering, you'd need a propane torch to get the steel hot enough, but I think you won't be terribly happy with the result. Solder isn't terribly strong by itself, and will form a poor bond to steel. You'd be happier getting it welded in place.
That said, there are quite a few epoxies around that might work. I know that astronomers sometimes favor epoxies for some of their telescope assemblies.
If I'm not mistaken, Maren is an astronomer by profession. I don't know if she also builds telescopes or not, but perhaps she has some ideas from her experiences.
Linda
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2009-06-09, 9:26am
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Senior Member
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Location: Huntington Beach CA
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I was kind of thinking the same thing Linda. I have no experience with steel. I am not sure my "little torch" will get hot enough for steel. Although I do have welding rods (mandrels) If I weld I will bring it to a shop.
I did just have another idea....since the helping hand things are cheap with lesser quality fasteners, what if I switched out the bolts and wingnuts with better quality fasteners. This could possibly hold the joints more securely. I do like the idea of there being some flexibility....I have an Ace Hardware at our closest major intersection.
Maren...an Astronomer by profession. What a great choice she made!
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Michelle
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2009-06-09, 11:45am
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honorary bead lady
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Join Date: Jan 14, 2008
Location: Mostly the doghouse
Posts: 5,180
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Bousky I do like the Idea of what you tried to do, I think the inherent problem is using the third hands, just too many movable joints.
Solder will not work!
Taking it to a shop to have it tacked $$$.
You could try to braze it.
If you use epoxy you will have to take it all apart, Ruff it up with a gringer, clean it with acetone or lacquer thinner, re assyemble and adjust it, and epoxy it up. I would suggest a thickened epoxy like marine tex.
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David
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