the kid Posted June 30, 2004 Share Posted June 30, 2004 Right ive look all over the site but cant find a topic on, how to make a gobo. The genneral question ive got is what thickness metal is not good to use because it'll melt and what is just really to much. We have all the tools at school for cutting so that is not a problem. Any ideas? Their for a cantata 11/26 Oh and prefialy be for 5 today or saturday. I forgot to order some and I cant go in to oxford and we have no money for some ;) dam school Link to comment Share on other sites More sharing options...
Grahame Posted June 30, 2004 Share Posted June 30, 2004 The traditional metal to use for hand-tooled gobos is old litho plates from your local printer. I have also seen gobos made from cut and beaten tin cans, and even a relatively thin and flexible foil - not sure what it was, but it was thicker than tinfoil, thinner than litho plate. Link to comment Share on other sites More sharing options...
sguy42 Posted June 30, 2004 Share Posted June 30, 2004 The traditional metal to use for hand-tooled gobos is old litho plates from your local printer. I have also seen gobos made from cut and beaten tin cans, and even a relatively thin and flexible foil - not sure what it was, but it was thicker than tinfoil, thinner than litho plate.'Turkey' foil is usually a thicker grade than ordinary kitchen foil, however unless it's only going to be on for a few seconds I suspect a Cantata will frazzle it. If you've got access to the proper machine tools then any thin aluminium, steel or brass sheet will do, but it may take you a long time unless it's a simple design you need to cut out. shane Link to comment Share on other sites More sharing options...
enbee Posted June 30, 2004 Share Posted June 30, 2004 I recently managed to make some from the tin trays you get from take away stuff. you've got to be kind of gentle with them and I wouldn't leave them on for the whole show but if it was just for one scene they work well enough Link to comment Share on other sites More sharing options...
andy_s Posted June 30, 2004 Share Posted June 30, 2004 I recently managed to make some from the tin trays you get from take away stuff. you've got to be kind of gentle with them and I wouldn't leave them on for the whole show but if it was just for one scene they work well enough our local takeaways now use plastic trays like thin tupperware for almost everything - useful source of gobo raw material gone for a burton! Link to comment Share on other sites More sharing options...
Jivemaster Posted June 30, 2004 Share Posted June 30, 2004 OK, The metal is usu steel or sometimes brass, about 0.2 to 0.4 mm the etchant is Ferric Chloride. for one off spray car paint both sides works as a resist, draw the design by hand with a scriber you save on etchant by just scribing round areas to fall out, if you want the centre (as of a letter O ) to stay in you only scribe a dotted line. OR use photo resist and a good artwork Link to comment Share on other sites More sharing options...
fluiduk Posted June 30, 2004 Share Posted June 30, 2004 I have found that john smiths cans work a treat! made loads of gobos from them, and they havent melted at all. Aaron Link to comment Share on other sites More sharing options...
Dweeks Posted June 30, 2004 Share Posted June 30, 2004 Surprised the ink didn't burn or melt :s Link to comment Share on other sites More sharing options...
fluiduk Posted June 30, 2004 Share Posted June 30, 2004 It does for a while, smells a bit funny, but it soon goes away ** laughs out loud ** Link to comment Share on other sites More sharing options...
david.elsbury Posted June 30, 2004 Share Posted June 30, 2004 use those plates that u put under oven emements. they are thicker than tinfoil and are a bit more heavy duty. david Link to comment Share on other sites More sharing options...
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