Mr. Prongy over there is what one does when one needs to solder four brass bearing surfaces to the inside of a square tube.
(As soon as you heat the tube to install the next one, one or more of the others melt and fall off or move.)
Using a shop-made tool†, the procedure is merely slightly fiddly:
- generously tin 4 inside surfaces
- generously tin the bottoms of 4 brass bearings
- using your preternatural manual dexterity, place all four bearings in place, using the tool to hold them.
(note: the author lies, he soldered two of them in place first before he realized he was stuck and would need a tool, so now it will be much easier than the above. -- sincerely, the author's other hemisphere) - apply heat until everything settles into place under spring* pressure
Goddammit, Blogger.com, why are you like this?!?  |
* "springy", LOL, yeah right! This is A36 structural steel, it has forgotten what carbon ever felt like, so good luck actually making it springy, temperoid, hardish, etc. The fingers were springy enough to do the job once I cut them 2X as long as I thought they needed to be...
† took me, oh, 30min of actual labor I suppose - not including a break or three. Not a lot of time for a project taking many man-days of labor
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