From: Ian (IANHR) [#6]
3 Jul 2006
To: Ian (IANHR) [#5] 3 Jul 2006
Actually, rereading all your posts, I think the sacrificial piece and the nosecone might be the way to go. I did read the manual cutter setting in the index, but your explanation made it clearer. Thanks again.
Ian
From: Stunt Engraver (DGL) [#7]
3 Jul 2006
To: Ian (IANHR) [#5] 3 Jul 2006
Ian,
I forgot to mention a crucial point.
When I route metal with a nose cone, while using light-tack tape, I use a steady stream of shop air, to keep metal chips from gathering beneath the nose cone.
A vacuum-nose works fairly well, if you can keep the nose close to the surface of the metal, but direct contact creates more suction.
Of course, you can't have direct contact. :-)
From: Ian (IANHR) [#8]
5 Jul 2006
To: ALL
Thanks to all for your input - here's the what worked out for me. Taking the idea of a sacrificial piece of plastic I went to the local supplier and found sheets of .020 styrene, which looked almost perfect, especially at about $12 per 4 x 8 foot sheet. I covered the face of the brass, with the protective plastic still on, with transfer tape, then sprayed the back of the tape with 3M Super 77 spray adhesive and stuck the styrene to that. While engraving, the centres all stayed in the letters and when I pulled off the styrene the masking tape came with it and the protective plastic stayed on the brass. The nose rode on the styrene and the chip extractor worked so depth problems and warped material were not an issue. Great ideas, thanks again!
Ian
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