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I Forge Iron

Gerome

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Everything posted by Gerome

  1. ​The picture are of pieces already from but not necessarily flat on the contact patch. The .020 is the thickness of the shoe and it is actually closer to .015" when I checked it with calipers. They do get twisted sometimes but that is an easy fix as it is typically on the "hanger" which is at the far end of the picture. Below is a picture of how they hook up with the springs providing tension. Notice the are actually disconnected from the slotted front end. And a picture of them connected. I want to flatten the to improve the widen the contact patch to make the car run smoother and improve electrical contact. When not perfectly smooth you get arching which produces a blackened are on the contact patch thus further reducing the electrical contact. I have used 400 grit sandpaper to polish and you can actually flatten the patch in the manner is you sand long enough and have the patch flat on the sandpaper. I have asked fellow racers what they do and some are quite about this and some forthcoming with information. Racers are always looking for an edge and that's what I looking for. Thanks again for all the replies and suggestions.
  2. ​I have seen a one off tool that can do this, pictured, but I was looking for something simple. I have heated the quenched but did not try to flatten while heated but it is worth a try.
  3. ​I plan to give this technique a try. I took left slots behind when I got my DL AND discovered girls. When I turned 50 I decided to get back into them as a hobby to keep me from running the streets. Seems to be working pretty well so far.
  4. All, Thanks for the quick replies. I race toy Aurora slot cars from the 1960's. The pick up shoes are copper and to get good contact on the rails you need the shoes as flat as possible. There are bends on both ends so a rolling press would be difficult to use. Below is a picture of the shoes and the portion that runs on the rails is the flat part just behind the slotted front opening. I have a flat surface that I use to try to flatten them on but I need them really flatter than .020".
  5. Hello all, I'm trying to com up with a war to flatten thin copper strips for a hobby of mine. The strips to flatten are about .020" thick, .425" long and about .060" wide. I have several devices I'm trying to use such as a hammed and a iron anvil but can't seem to get them as flat as I want. I can provide pictures later.
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