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| Parslow's Skeleton Clock by Raynerd |
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| Meldonmech:
Hi Chris, It is looking good, clock makers of the past did not use tube for drive barrels. They used 1/8 inch strip, annealed and formed into a barrel, silver soldered at the joint. The barrel end was then sweated on using soft solder. I have used this method on all my clocks, and have have not encountered a single problem. This method has been used for hundreds of years. On one of your pictures I noted a small chamfer on the wheel crossings, the normal convention in clock making is to leave the crossings with sharp edges. Well Done Cheers David |
| ddkhalaji:
--- Quote from: raynerd on May 29, 2013, 07:04:09 PM --- The plans say to silver solder the two together or soft solder. I would prefer to silver solder but I'll need to get it really hot and will the brass discolour and need a lot of working in polishing it back up....especially in areas I can't even get to??? Any thoughts? Chris --- End quote --- If you are worried about the temperature, have you tried using "easy" silver solder, which has the lowest melting temperature of around 650 C, "hard" silver solder usually melts around 750 C. Is the brass actually discoloured? I know a lot of the hard black scale is usually flux, and it will blunt a file in a short amount of time. Therefore the part is placed in a 'pickle' (diluted sulphuric acid) afterwards for several seconds, and then washed to remove all traces of the acid. Once dry, the part should be reasonable in appearance, and shouldn't need a lot of polishing. I'm unsure how familiar you are with silver soldering brass, sorry if these are the steps you have already taken. Then I assume it would be practice getting the balance right between your flux, solder and temperature. Dean |
| NickG:
Looks v professional that Chris. If you pickle the parts after in sulphuric acid you can usually clean them up pretty well. |
| S. Heslop:
--- Quote from: RobWilson on February 17, 2013, 03:41:06 AM --- :scratch: I see no cheating Chris , you used the tools available to you ,a tool you built :thumbup: , Those that think CNC is cheating don't understand CNC , they just think its just a case of press the button marked "cross out clock wheels " and out the part pops :lol: , they be the same folk that think nothing of buying a set of castings . --- End quote --- I remember a few years ago CNC machines were all the rage with a certain type of person. I think they all fully expected them to be just like that, and were disappointed when they realised how much work they really were. Now they've all moved onto 3d printers expecting the same. Those gears are looking real swish though. Can't wait to see the clock start to take shape. |
| vtsteam:
Looks really nice! Tools are tools. CNC is like a hammer. A lot of potential, but just a hammer on its own. not a birdhouse. I have a couple of CNC machines, but I find it more fun and easier to act than think these days. Unfortunately. :lol: |
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