 tony banfield
Member
Joined: 21/Oct/2004
Member: 83
Posts: 36
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Quote: On 23/Oct/2004 at 5:20:38 PM AanrakuSG wrote
Yeah..............developed for the older 'lead came' technique where soldering is only done at the joints and on the lead, not having to run the iron along the edge of the glass covered only with a thin covering of copper foil.
When using wider 3/16"~1/2" lead came, most times the fracture points aren't an issue, but they are for foil.
There are better methods for both today, so it's not a technique thats necessary anymore.
OK....appropriately-coloured red rag to Jeffrey's grinding-only bull here.....grozing is as old as SG......that's the reason for the three teeth on the old-fashioned wheel-cutters.....and is still valid today.
Ideally, one cuts absolutely accurately to start with, but if things aren't EXACTLY spot-on, or if there are inside curves too tight to cut, then grozing is as valid as electric grinding . As to the "danger" of grozing JC hints at, all I can attest to is that I ran a 12-person lamp-sweatshop for many years, making thousands of many-hundreded foil lamps and panels, and we never had a grinder in the building....when we didn't cut accurately (hey, shit happens) we grozed and never had any of the disasters Jeffrey suggests .If it DOES happen with his students, then I stand corrcted, but I don't remember ever finding "cracks/fractures" due to grozing being a problem.
Even IF he's right, it's quicker to GROZE into a very tight inside curve and then smooth the edges with a pass of a small-diameter grinder wheel.
Talking of Grinding...do I smell the whiff of JC's axe being ground here? By all accounts his Twofer Grinder Wheels are an EXCELLENT new product he's produced, so I guess he has a commercial vested interest in boosting grinding at the expense of grozing!
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tony banfield |
