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Making metal inserts for knobs?
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Return to top of page · Post #: 1 · Written at 11:29:52 PM on 27 March 2018.
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Location: Mount Cotton, QLD
Member since 20 February 2018 Member #: 2214 Postcount: 134 |
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Hi all, I have a few Kriesler radios from about 1956ish. The knobs have a shiny convex metal insert glued in the centre, the glue has failed and some of the inserts are missing. Has anyone figured out a way to manufacture new discs? I tried filling the centre with filler and machining them smooth and painting them gold or silver but it looks pretty ordinary. Any ideas? Thanks |
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Return to top of page · Post #: 2 · Written at 7:59:15 AM on 28 March 2018.
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Location: Grenfell, NSW
Member since 8 July 2015 Member #: 1771 Postcount: 212 |
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I would say if you made a mould and a plug you could press some out. Use hard wood for both and you might even be able to use a drill press to form them. Not sure what metal you could use, that might need some research. ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾ Clive |
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Return to top of page · Post #: 3 · Written at 9:40:27 AM on 28 March 2018.
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Administrator
Location: Naremburn, NSW
Member since 15 November 2005 Member #: 1 Postcount: 7395 |
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The steel from clock springs is best. Getting a clock spring that would provide the best dimensions is the tricky bit. ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾ A valve a day keeps the transistor away... |
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Return to top of page · Post #: 4 · Written at 12:07:48 PM on 28 March 2018.
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Location: Belrose, NSW
Member since 31 December 2015 Member #: 1844 Postcount: 2476 |
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Tippy, I assume you mean the aluminium dress discs and not the knob locking springs? |
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Return to top of page · Post #: 5 · Written at 12:16:12 PM on 28 March 2018.
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Location: Mount Cotton, QLD
Member since 20 February 2018 Member #: 2214 Postcount: 134 |
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I was thinking of using the aluminium from a soft drink can. It's malleable and would polish well. |
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Return to top of page · Post #: 6 · Written at 12:17:29 PM on 28 March 2018.
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Location: Mount Cotton, QLD
Member since 20 February 2018 Member #: 2214 Postcount: 134 |
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Hi Ian, yes the dress discs. |
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Return to top of page · Post #: 7 · Written at 12:38:10 PM on 28 March 2018.
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Administrator
Location: Naremburn, NSW
Member since 15 November 2005 Member #: 1 Postcount: 7395 |
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Hi Ian, yes the dress discs. ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾ A valve a day keeps the transistor away... |
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Return to top of page · Post #: 8 · Written at 3:55:29 PM on 28 March 2018.
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Location: Latham, ACT
Member since 21 February 2015 Member #: 1705 Postcount: 2174 |
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My email is unhidden can you send me pictures of the knobs please. I might have some. |
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Return to top of page · Post #: 9 · Written at 10:06:46 PM on 28 March 2018.
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Location: NSW
Member since 10 June 2010 Member #: 681 Postcount: 1301 |
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The bottom of an aluminium drink can is much thicker than the wall and is also domed to resist the pressure. If you go for metal forming option with punch and die made from hardwood, this curvature should be a help. |
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Return to top of page · Post #: 10 · Written at 1:29:55 AM on 29 March 2018.
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Location: Wangaratta, VIC
Member since 21 February 2009 Member #: 438 Postcount: 5389 |
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If there is a Lathe for machining the punch could be metal & the lathe also used to form the die. I actually made dies & punches to stamp out the clip on filters used on the binoculars. |
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Return to top of page · Post #: 11 · Written at 8:12:36 AM on 29 March 2018.
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Location: Mount Cotton, QLD
Member since 20 February 2018 Member #: 2214 Postcount: 134 |
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Thanks Tallar Carl, I have emailed the photos. |
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