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1004 [2014/01/31 01:39] clodoveu |
1004 [2016/02/12 20:55] (current) clodoveu |
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| * [[etc|Back to Offline Hours]] | * [[etc|Back to Offline Hours]] | ||
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| + | * [[calc|Back to Mechanical Calculators]] | ||
| I purchased this machine in January 2013 at an online auction site. The 10-04 model was the very last manual calculator manufactured by Facit in Sweden. The model is very similar to the CM2-16, with the same specs, and a few external differences, including a plastic cover. It has a handle that pops out in the lower front to help moving the machine around in an office desk. | I purchased this machine in January 2013 at an online auction site. The 10-04 model was the very last manual calculator manufactured by Facit in Sweden. The model is very similar to the CM2-16, with the same specs, and a few external differences, including a plastic cover. It has a handle that pops out in the lower front to help moving the machine around in an office desk. | ||
| - | This one is in pretty good shape, but the lubrication inside is the most deteriorated I have seen. Much grease has been applied, and it hardened in some parts. When I got it, it was completely stuck. Some directed cleaning and a thorough spray of kerosene have loosened part of the main subsystems, but it was not nearly enough. A full disassembly and cleaning is required, so that the machine can operate smoothly again. | + | This one is in pretty good shape, but the lubrication inside is the most deteriorated I have seen. Much grease has been applied, and it hardened in some parts. When I got it, it was completely stuck. Some directed cleaning and a thorough spray of kerosene have loosened part of the main subsystems, but it was not nearly enough. A full disassembly and cleaning was required, so that the machine could operate smoothly again. |
| I finally got around to disassembling, cleaning and reassembling the machine in January 2014. Inside, most parts are yellowish, I guess from zinc plating. This plating has reduced the number of stains in the sheet metal parts, but most of the problem was, again, the old lubricants. I experimented this time with a small and cheap ultrasonic cleaning device, using kerosene as a solvent (see photo below). It worked very well, especially with gears, screws and other parts with holes and details that are hard to get at with a brush or a cleaning cloth. | I finally got around to disassembling, cleaning and reassembling the machine in January 2014. Inside, most parts are yellowish, I guess from zinc plating. This plating has reduced the number of stains in the sheet metal parts, but most of the problem was, again, the old lubricants. I experimented this time with a small and cheap ultrasonic cleaning device, using kerosene as a solvent (see photo below). It worked very well, especially with gears, screws and other parts with holes and details that are hard to get at with a brush or a cleaning cloth. | ||
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| [[http://public.beuth-hochschule.de/~hamann/facit/f-16/indexi.html | Inside views]] | [[http://public.beuth-hochschule.de/~hamann/facit/f-16/indexi.html | Inside views]] | ||
| - | [[http://home.vicnet.net.au/~wolff/calculators/Tech/FacitCA2-16/CA216.htm | FACIT CA2-16, an electrical-driven version of the CM2-16]] | + | [[http://www.johnwolff.id.au/calculators/Tech/FacitCA2-16/CA216.htm | FACIT CA2-16, an electrical-driven version of the CM2-16]] |
| - | [[http://home.vicnet.net.au/~wolff/calculators/Facit/Facit.htm | The evolution of FACIT calculators]] | + | [[http://www.johnwolff.id.au/calculators/Facit/Facit.htm | The evolution of FACIT calculators]] |
| [[http://www.rechenautomat.de/Facit/Facit_Manuals.html|Operation Manual of the Facit CM2-16 (in German)]] | [[http://www.rechenautomat.de/Facit/Facit_Manuals.html|Operation Manual of the Facit CM2-16 (in German)]] | ||
| [[http://www.youtube.com/watch?v=YXMuJco8onQ | Video: how pinwheel calculators work]] | [[http://www.youtube.com/watch?v=YXMuJco8onQ | Video: how pinwheel calculators work]] | ||
