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| The Birth of a Grub Screw |
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| awemawson:
--- Quote from: NeoTech on December 07, 2013, 09:58:50 AM ---You got a diesink.. I just went "you gonna make an electroce for what?" and then went -"wtf, he got a die sink.. :bang:".. Screw is nice.. but that die sink ;) --- End quote --- They are a much undervalued machine in my opinion. Loads in tool dealers sitting unloved :( If only for removing the odd broken tap or ht screw that's sheared off they are useful. And as the 'tooling' is only male forms of what you want, in easily worked materials (copper or graphite) very complex shapes can be made with little trouble in the hardest of materials without distortion. The 'clever' bit is allowing for the slight 'side wall arcing' that makes the hole a certain proportion bigger than the tool. I have reams of tables of allowances graphing cutting current against size against oversize, but I confess I just guess rather than calculate. In this case I allowed 10 thou (254 microns) and it worked so the key comes out with a pneumatic 'pop' sound from the socket :wave: Andrew |
| John Stevenson:
Is your wire eroder working ? Can it do 10mm HSS ? or rather can you ? |
| awemawson:
Yes John it is and yes (sort of) can I. I'm not too hot on programming it though as I don't use it very often. email me what you had in mind Andrew |
| NeoTech:
Aquiring one of those around here cost like a left arm, your nuts and the first born child of 3 generations.. they are horribly expensive.. |
| awemawson:
Give me a shipping address and an open cheque and I'll send you one :lol: Here's one for you : http://www.larchwoodltd.co.uk/machine.asp?id=840 Andrew |
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